View Filing Data

$ 486.9

$ 652.9

144.8

248.6

357.8

457.2

581.7

637.4

^[1]

111.7

121.6

10.5

10.0

1,693.4

2,127.7

^[2]

1,103.3

1,109.5

31.2

34.2

184.6

198.7

257.0

337.2

58.9

76.2

Liabilities, Non-Controlling Interest and Stockholders’ Equity

3,328.4

3,883.5

279.5

451.8

228.3

239.8

4.9

7.5

0.6

0.7

134.5

172.0

Current portion of long-term debt (see Note 8)

22.9

33.6

353.6

370.1

Long-term debt (see Note 8)

1,024.3

1,275.5

658.3

836.9

232.2

260.1

22.9

17.5

Commitments and contingencies (See Note 15)

1,937.7

2,390.0

ON Semiconductor Corporation stockholders’ equity:

Common stock ($0.01 par value, 750,000,000 shares authorized, 509,977,999 and 502,452,084 shares issued, 448,824,345 and 451,284,220 shares outstanding, respectively)

5.1

5.0

3,156.4

3,113.5

(41.1)

(46.7)

Less: treasury stock, at cost; 61,153,654 and 51,167,864 shares, respectively

(1,292.9)

(1,202.3)

(466.4)

(401.3)

Total ON Semiconductor Corporation stockholders’ equity

1,361.1

1,468.2

Non-controlling interest in consolidated subsidiary

29.6

25.3

1,390.7

1,493.5

Organization, Consolidation and Presentation of Financial Statements [Abstract]

$ 3,328.4

$ 3,883.5

[1]	Included in other current assets are $1.0 million of fixed assets that are held-for-sale as of December 31, 2012.
[2]	Included in property, plant and equipment are $8.3 million of fixed assets that are held-for-sale as of December 31, 2012.

Consolidated Balance Sheet (Parenthetical) - $ / shares	Dec. 31, 2012	Dec. 31, 2011
Stockholders' Equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	509,977,999	502,452,084
Common stock, shares outstanding	448,824,345	451,284,220
Treasury stock, shares	61,153,654	51,167,864

Consolidated Statements Of Operations And Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement [Abstract]
Revenues	$ 2,894.9	$ 3,442.3	$ 2,313.4
Cost of revenues	1,943.0	2,433.5	1,357.4
Gross profit	951.9	1,008.8	956.0
Operating expenses:
Research and development	367.5	362.5	248.0
Selling and marketing	180.9	195.1	145.6
General and administrative	160.6	192.4	129.9
Amortization of acquisition-related intangible assets	44.4	42.7	31.7
Restructuring, asset impairments and other, net	165.3	102.7	10.5
Goodwill and intangible asset impairment	49.5	0.0	16.1
Total operating expenses	968.2	895.4	581.8
Operating income (loss)	(16.3)	113.4	374.2
Other income (expenses), net:
Interest expense	(56.1)	(68.9)	(61.4)
Interest income	1.5	1.1	0.5
Other	5.8	(8.9)	(6.9)
Loss on debt repurchase or exchange	(7.8)	(23.2)	(0.7)
Gain on SANYO Semiconductor acquisition	0.0	24.3	0.0
Other income (expenses), net	(56.6)	(75.6)	(68.5)
Income (loss) before income taxes	(72.9)	37.8	305.7
Income tax provision	(13.4)	(22.9)	(12.8)
Net income (loss)	(86.3)	14.9	292.9
Less: Net income attributable to non-controlling interest	(4.3)	(3.3)	(2.4)
Net income (loss) attributable to ON Semiconductor Corporation	(90.6)	11.6	290.5
Comprehensive income (loss), net of tax:
Net income (loss)	(86.3)	14.9	292.9
Foreign currency translation adjustments	4.3	12.3	5.7
Effects of cash flow hedges	0.8	0.0	0.0
Unrealized gain (loss) on available-for-sale securities	0.4	0.0	0.0
Amortization of prior service costs of defined benefit plan	0.1	0.1	0.1
Comprehensive income (loss)	(80.7)	27.3	298.7
Comprehensive income attributable to non-controlling interest	(4.3)	(3.3)	(2.4)
Comprehensive income (loss) attributable to ON Semiconductor Corporation	$ (85.0)	$ 24.0	$ 296.3
Net income (loss) per common share attributable to ON Semiconductor Corporation:
Basic (dollars per common share)	$ (0.20)	$ 0.03	$ 0.67
Diluted (dollars per common share)	$ (0.20)	$ 0.03	$ 0.65
Weighted average common shares outstanding:
Basic weighted average common shares outstanding	452.6	446.7	431.0
Diluted weighted average common shares outstanding	452.6	457.2	444.4

Consolidated Statement Of Stockholder's Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Non-controlling Interests In Consolidated Subsidiaries [Member]	2.625% Coupon Convertible Notes [Member]	2.625% Coupon Convertible Notes [Member] Additional Paid-in Capital [Member]
Balance, beginning shares at Dec. 31, 2009		474,427,706				(47,173,606)
Balance, beginning at Dec. 31, 2009	$ 1,004.6	$ 4.7	$ 2,916.6	$ (64.9)	$ (1,504.4)	$ (367.0)	$ 19.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	298.7			5.8	290.5		2.4
Issuance of common stock, for repurchase of debt		1,020
Stock option exercises, shares		4,054,373
Stock option exercises	23.3	$ 0.2	23.1
Shares issued pursuant to the employee stock purchase plan, shares		1,193,234
Shares issued pursuant to the employee stock purchase plan	7.0		7.0
Restricted stock units and awards issued, shares		6,227,767
Net share settlement of restricted stock units, shares						(1,956,317)
Net share settlement of restricted stock units	(15.0)					$ (15.0)
Share-based compensation expense	52.5		52.5
Extension of Zero Coupon Convertible Notes	13.3		13.3
Consideration for unvested stock options in connection with acquisition of California Micro Devices Corporation	3.6		3.6
Balance, ending shares at Dec. 31, 2010		485,904,100				(49,129,923)
Balance, ending at Dec. 31, 2010	1,388.0	$ 4.9	3,016.1	(59.1)	(1,213.9)	$ (382.0)	22.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	27.3			12.4	11.6		3.3
Stock option exercises, shares		8,734,690
Stock option exercises	59.4	$ 0.1	59.3
Shares issued pursuant to the employee stock purchase plan, shares		1,152,778
Shares issued pursuant to the employee stock purchase plan	8.1		8.1
Restricted stock units and awards issued, shares		6,660,516
Net share settlement of restricted stock units, shares						(2,037,941)
Net share settlement of restricted stock units	(19.3)					$ (19.3)
Share-based compensation expense	33.5		33.5
Repurchase or exchange of convertible notes								$ (25.8)	$ (25.8)
Repurchase or exchange of cnvertible notes, Series B								22.3	22.3
Balance, ending shares at Dec. 31, 2011		502,452,084				(51,167,864)
Balance, ending at Dec. 31, 2011	1,493.5	$ 5.0	3,113.5	(46.7)	(1,202.3)	$ (401.3)	25.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	$ (80.7)			5.6	(90.6)		4.3
Stock option exercises, shares	1,900,000	1,866,376
Stock option exercises	$ 9.4	$ 0.1	9.3
Shares issued pursuant to the employee stock purchase plan, shares		1,445,309
Shares issued pursuant to the employee stock purchase plan	8.3		8.3
Restricted stock units and awards issued, shares		4,214,230
Net share settlement of restricted stock units, shares						(1,141,640)
Net share settlement of restricted stock units	(9.6)					$ (9.6)
Share-based compensation expense	$ 20.5		20.5
Repurchase of common stock, shares	(8,800,000)					(8,844,150)
Repurchase of common stock	$ (55.5)					$ (55.5)
Repurchase or exchange of cnvertible notes, Series B								$ 4.8	$ 4.8
Balance, ending shares at Dec. 31, 2012		509,977,999				(61,153,654)
Balance, ending at Dec. 31, 2012	$ 1,390.7	$ 5.1	$ 3,156.4	$ (41.1)	$ (1,292.9)	$ (466.4)	$ 29.6

Consolidated Statement Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income (loss)	$ (86.3)	$ 14.9	$ 292.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	243.6	229.4	166.9
Gain on sale or disposal of fixed assets	(9.5)	(8.7)	(6.9)
Non-cash manufacturing expenses associated with favorable supply agreement	0.0	80.4	0.0
Non-cash portion of loss on debt repurchase or exchange	7.8	23.2	0.7
Gain on acquisition of SANYO Semiconductor	0.0	(24.3)	0.0
Amortization of debt issuance costs	2.1	2.3	2.5
Provision for excess inventories	51.9	49.1	10.0
Non-cash share-based compensation expense	20.5	33.5	52.5
Non-cash interest on convertible notes	23.4	34.9	33.7
Non-cash asset impairment charges	103.0	86.3	3.9
Non-cash goodwill and intangible asset impairment charges	49.5	0.0	16.1
Recovery from insurance proceeds on property, plant and equipment	0.0	(13.3)	0.0
Non-cash portion of insurance recovery	0.0	(23.9)
Deferred income taxes	(3.1)	(4.2)	2.6
Other	(1.6)	0.7	(1.8)
Changes in assets and liabilities (exclusive of the impact of acquisitions):
Receivables	95.4	89.1	(22.9)
Inventories	(7.1)	102.1	(84.0)
Other assets	(9.9)	(15.2)	(17.1)
Accounts payable	(161.3)	(109.7)	26.8
Accrued expenses	8.6	(37.4)	23.0
Income taxes payable	(2.6)	2.4	0.0
Accrued interest	(0.1)	(0.1)	(0.1)
Deferred income on sales to distributors	(37.5)	22.5	50.7
Other long-term liabilities	(10.8)	11.5	2.3
Net cash provided by operating activities	276.0	545.5	551.8
Cash flows from investing activities:
Purchases of property, plant and equipment	(256.3)	(316.4)	(188.9)
Proceeds from sales of property, plant and equipment	6.2	3.3	37.1
Deposits utilized for purchases of property, plant and equipment	1.4	0.5	(2.2)
Recovery from insurance on property, plant and equipment	11.5	13.3	0.0
Purchase of businesses, net of cash acquired	0.0	(17.9)	(91.0)
Proceeds from held-to-maturity securities	377.6	122.2	45.5
Purchase of held-to-maturity securities	(273.8)	(370.8)	0.0
Change in restricted cash	0.0	142.1	(136.2)
Net cash used in investing activities	(133.4)	(423.7)	(335.7)
Cash flows from financing activities:
Proceeds from issuance of common stock under the employee stock purchase plan	8.3	8.1	7.0
Proceeds from exercise of stock options	9.4	59.4	23.3
Payments of tax withholding for restricted shares	(9.6)	(19.3)	(15.0)
Repurchase of common stock	(55.5)	0.0	0.0
Proceeds from debt issuance	23.6	69.0	152.0
Payment of capital lease obligations	(40.8)	(39.0)	(32.3)
Repayment of long-term debt	(232.5)	(159.5)	(254.4)
Payments made in connection with repurchase or exchange convertible notes	2.6	15.9
Net cash used in financing activities	(299.7)	(97.2)	(119.4)
Effect of exchange rate changes on cash and cash equivalents	(8.9)	5.0	0.9
Net increase (decrease) in cash and cash equivalents	(166.0)	29.6	97.6
Cash and cash equivalents, beginning of period	652.9	623.3	525.7
Cash and cash equivalents, end of period	486.9	652.9	623.3
2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)
Cash flows from financing activities:
Payments made in connection with repurchase or exchange convertible notes	$ 2.6	$ 15.9	$ 0.0

Background And Basis Of Presentation

12 Months Ended

Dec. 31, 2012

Background And Basis Of Presentation


	Background and Basis of Presentation

ON Semiconductor Corporation (“ON Semiconductor”), together with its wholly and majority-owned subsidiaries (the “Company”), is driving innovation in energy efficient electronics. The Company’s broad portfolio of power and signal management, logic, discrete and custom devices helps customers efficiently solve their design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power applications.

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

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Significant Accounting Policies

Significant Accounting Policies

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Principles of Consolidation

The accompanying consolidated financial statements include the accounts of the Company, including its wholly-owned and majority-owned subsidiaries. Investments in companies that represent less than 20% of the related voting stock where the Company does not have the ability to exert significant influence are accounted for on a cost basis. All material intercompany accounts and transactions have been eliminated.

Use of Estimates

The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. Significant estimates have been used by management in conjunction with the following: (1) measurement of valuation allowances relating to trade receivables, inventories and deferred tax assets; (2) estimates of future payouts for customer incentives, warranties, and restructuring activities; (3) assumptions surrounding future pension obligations and expected return on pension investments; (4) fair values of stock options and financial instruments (including derivative financial instruments); and (5) future cash flows used to assess and test for impairment of long-lived assets and goodwill. Actual results could differ from these estimates.

Cash and cash equivalents

The Company considers all highly liquid investments with an original maturity to the Company of three months or less to be cash equivalents. Cash and cash equivalents are maintained with reputable major financial institutions. If, due to current economic conditions, one or more of the financial institutions with which the Company maintains deposits fails, the Company's cash and cash equivalents may be at risk. Deposits with these banks may exceed the amount of insurance provided on such deposits; however, these deposits typically may be redeemed upon demand and, therefore, bear minimal risk.

Short-Term Investments

Short-term investments have an original maturity to the Company between three months and one year, and are classified as held-to-maturity. Held-to-maturity securities are carried at amortized cost as it is the intent of the Company to hold these securities until maturity.

Allowance for Doubtful Accounts

In the normal course of business, the Company provides unsecured credit terms to its customers. Accordingly, the Company maintains an allowance for doubtful accounts for possible losses on uncollectible accounts receivable. The Company routinely analyzes accounts receivable and considers history, customer creditworthiness, facts and circumstances specific to outstanding balances, current economic trends, and payment term changes when evaluating adequacy of the allowance for doubtful accounts. For uncollectible accounts receivable, the Company records a loss against the allowance for doubtful accounts only after exhaustive efforts have been made to collect and with management's approval.

Inventories

Inventories are stated at the lower of standard cost (which approximates actual cost on a first-in, first-out basis) or market. The Company records provisions for slow moving inventories based upon a regular analysis of inventory on hand compared to historical and projected end-user demand. These provisions can influence results from operations. For example, when demand for a given part falls, all or a portion of the related inventory is reserved, impacting cost of revenues and gross profit. If demand recovers and the parts previously reserved are sold, a higher than normal margin will generally be recognized. However, the majority of product inventory that has been previously reserved is ultimately discarded. Although the Company does sell some products that have previously been written down, such sales have historically been relatively consistent on a quarterly basis and the related impact on the Company's margins has not been material. Additionally, general market conditions, as well as the Company's design activities, can cause certain of its products to become obsolete.

Property, Plant and Equipment

Property, plant and equipment are recorded at cost and are depreciated over estimated useful lives of 30-50 years for buildings and 3-20 years for machinery and equipment using accelerated and straight-line methods. Expenditures for maintenance and repairs are charged to operations in the period in which the expense is incurred. When assets are retired or otherwise disposed of, the related costs and accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in operations in the period realized.

The Company evaluates the recoverability of the carrying amount of its property, plant and equipment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be fully recoverable. A potential impairment charge is evaluated when the undiscounted expected cash flows derived from an asset group are less than its carrying amount. Impairment losses are measured as the amount by which the carrying value of an asset group exceeds its fair value and are recognized in operating results. Judgment is used when applying these impairment rules to determine the timing of the impairment test, the undiscounted cash flows used to assess impairments and the fair value of an impaired asset group. The dynamic economic environment in which the Company operates and the resulting assumptions used to estimate future cash flows impact the outcome of these impairment tests.

Business Combination Purchase Price Allocation

The allocation of the purchase price of business combinations is based on management estimates and assumptions, and other information compiled by management, which utilizes established valuation techniques appropriate for the high-technology industry. These techniques include the income approach, cost approach or market approach, depending upon which approach is the most appropriate based on the nature and reliability of available data. The income approach is predicated upon the value of the future cash flows that an asset is expected to generate over its economic life. The cost approach takes into account the cost to replace (or reproduce) the asset and the effects on the asset's value of physical, functional and/or economic obsolescence that has occurred with respect to the asset. The market approach is used to estimate value from an analysis of actual transactions or offerings for economically comparable assets available as of the valuation date.

Goodwill

Goodwill represents the excess of the purchase price over the estimated fair value of the net assets acquired in the Company's acquisitions. See Note 3: "Goodwill and Intangible Assets" and Note 4: "Acquisitions" for a further discussion of goodwill.

The Company evaluates its goodwill for potential impairment annually during the fourth quarter and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. Determining the fair value of a reporting unit is subjective in nature and involves the use of significant estimates and assumptions, including projected net cash flows, discount and long-term growth rates.. The Company determines the fair value of its reporting units based on an income approach, whereby the fair value of the reporting unit is derived from the present value of estimated future cash flows. Estimates of the future cash flows associated with the businesses are critical to these assessments. The assumptions about future conditions include factors such as future revenues, gross profits, operating expenses, and industry trends. Changes in these estimates based on evolving economic conditions or business strategies could result in material impairment charges in future periods. The Company bases its fair value estimates on assumptions it believes to be reasonable. Actual future results may differ from those estimates. The Company considers historical rates and current market conditions when determining the discount and growth rates to use in its analysis.

When evaluating goodwill for impairment, the Company initially performs a qualitative assessment which includes a review and analysis of certain quantitative factors to estimate if its reporting units' fair values significantly exceed their carrying values. When the estimate of a reporting unit's fair value appears more likely than not to be less than its carrying value based on this assessment, the Company continues to the first step of a two step impairment test.

The first step of the goodwill impairment test compares the fair value of the reporting unit to its carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that unit, goodwill is not considered impaired and the Company is not required to perform further testing. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the Company must perform the second step of the goodwill impairment test in order to determine the implied fair value of the reporting unit’s goodwill. If, during this second step, the Company determines that the carrying value of a reporting unit’s goodwill exceeds its implied fair value, the Company would record an impairment loss equal to the difference.

The Company has determined that its product families, which are components of its operating segments, constitute reporting units for purposes of allocating and testing goodwill. The Company's product families are one level below its operating segments, with the Company's segment management conducting regular reviews of the operating results for each product family. As of each acquisition date, all goodwill acquired was assigned to the product families that were expected to benefit from the synergies of the respective acquisition. The amount of goodwill assigned to each reporting unit was the difference between the fair value of the reporting unit and the fair value of identifiable assets and liabilities allocated to the reporting unit as of the acquisition date.

Intangible Assets

The Company's acquisitions resulted in intangible assets consisting of values assigned to IP, assembled workforce, customer relationships, non-compete agreements, patents, developed technology, trademarks, acquired software and IPRD. These are stated at cost less accumulated amortization, are amortized over their estimated useful lives ranging from less than 1 year to 18 years, and are reviewed for impairment when facts or circumstances suggest that the carrying value of these assets may not be recoverable. See Note 3: "Goodwill and Intangible Assets" for a further discussion of intangible assets.

Treasury Stock

Treasury stock is recorded at cost, inclusive of fees, commissions and other expenses, when outstanding common shares are repurchased or otherwise acquired by the Company, including when outstanding shares are withheld to satisfy tax withholding obligations in connection with certain shares pursuant to restricted stock units under the Company's share-based compensation plans. See Note 10: "Earnings Per Share and Equity" for further discussion.

Debt Issuance Costs

Debt issuance costs are capitalized and amortized over the term of the underlying agreements using the effective interest method. Upon prepayment of debt, the related unamortized debt issuance costs are charged to expense. Amortization of debt issuance costs is included in interest expense while the unamortized balance is included in other assets and for convertible notes is generally amortized through the first put date, which the Company considers to be the earliest maturity date. See Note 8: "Long-Term Debt - Loss on Debt Repurchase or Exchange" for a further discussion of debt issuance costs.

Revenue Recognition

The Company generates revenue from sales of its semiconductor products to OEMs, electronic manufacturing service providers and distributors. The Company also generates revenue, although to a much lesser extent, from manufacturing services provided to customers. The Company recognizes revenue on sales to OEMs and electronic manufacturing service providers and sales of manufacturing services, net of provisions for related sales returns and allowances, when persuasive evidence of an arrangement exists, title and risk of loss pass to the customer (which is generally upon shipment), the price is fixed or determinable and collectability is reasonably assured. Title to products sold to distributors typically passes at the time of shipment by the Company, so the Company records accounts receivable for the amount of the transaction, reduces its inventory for the products shipped and defers the related margin in its consolidated balance sheet. The Company recognizes the related revenue and cost of revenues when it is informed by the distributor that it has resold the products to the end-user. As a result of the Company's inability to reliably estimate up front the effects of the returns and allowances with these distributors, the Company defers the related revenue and margin on sales to these distributors. For distributors that are not entitled to returns and allowances, the Company recognizes revenue when title passes. Although payment terms vary, most distributor agreements require payment within 30 days.

Taxes assessed by government authorities on revenue-producing transactions, including value added and excise taxes, are presented on a net basis (excluded from revenues) in the statement of operations.

Sales returns and allowances are estimated based on historical experience. The Company's OEM customers do not have the right to return products, other than pursuant to the provisions of the Company's standard warranty. Sales to distributors, however, are typically made pursuant to agreements that provide return rights with respect to discontinued or slow-moving products. Under the Company's general agreements, distributors are allowed to return any product that has been removed from the price book. In addition, agreements with distributors typically contain standard stock rotation provisions permitting limited levels of product returns. However, since the Company defers recognition of revenue and gross profit on sales to distributors until the distributor resells the product, due to the inability to reliably estimate up front the effect of the returns and allowances with these distributors, sales returns and allowances have minimal impact on the results of operations. Provisions for discounts and rebates to customers, estimated returns and allowances, and other adjustments are provided for in the same period the related revenues are recognized, and are netted against revenues. Given that revenues consist of a high volume of relatively similar products, actual returns and allowances and warranty claims have not traditionally fluctuated significantly from period to period, and estimated returns and allowances and warranty provisions have historically been reasonably accurate.

The Company generally warrants that products sold to its customers will, at the time of shipment, be free from defects in workmanship and materials and conform to approved specifications. The Company's standard warranty extends for a period that is the greater of (i) two years from the date of shipment or (ii) the period of time specified in the customer's standard warranty (provided that the customer's standard warranty is stated in writing and extended to purchasers at no additional charge). At the time revenue is recognized, the Company establishes an accrual for estimated warranty expenses associated with its sales, recorded as a component of cost of revenues. In addition, the Company also offers cash discounts to customers for payments received within an agreed upon time, generally 10 days after shipment. The Company accrues reserves for cash discounts as a reduction to accounts receivable and a reduction to revenues, based on experience with each customer.

Freight and handling costs are included in cost of revenues and are recognized as period expense during the period in which they are incurred.

Research and Development Costs

Research and development costs are expensed as incurred.

Share-Based Compensation

Share-based compensation cost is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense over the employee's requisite service period. The Company has outstanding awards with performance, time and service-based vesting provisions. See Note 11: "Share-Based Compensation" for further discussion.

Income Taxes

Income taxes are accounted for using the asset and liability method. Under this method, deferred income tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which these temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided for those deferred tax assets for which management cannot conclude that it is more likely than not that such deferred taxes will be realized.

In determining the amount of the valuation allowance, estimated future taxable incomes, as well as feasible tax planning strategies in each taxing jurisdiction are considered. If the Company determines it is more likely than not that all or a portion of the remaining deferred tax assets will not be realized, the valuation allowance will be increased with a charge to income tax expense. Conversely, if the Company determines it is more likely than not to be able to utilize all or a portion of the deferred tax assets for which a valuation allowance has been provided, the related portion of the valuation allowance will be released to income as a credit to income tax expense.

The Company recognizes and measures benefits for uncertain tax positions using a two-step approach. The first step is to evaluate the tax position taken or expected to be taken in a tax return by determining if the weight of available evidence indicates that is it more likely than not that the tax positions will be sustained upon audit, including resolution of any related appeals or litigation processes. For tax positions that are more likely than not to be sustained upon audit, the second step is to measure the tax benefit as the largest amount that is more than 50% likely to be realized upon settlement. The Company's practice is to recognize interest and/or penalties related to income tax matters in income tax expense. Significant judgment is required to evaluate uncertain tax positions. Evaluations are based upon a number of factors, including changes in facts or circumstances, changes in tax law, correspondence with tax authorities during the course of audits and effective settlement of audit issues. Changes in the recognition or measurement of uncertain tax positions could result in material increases or decreases in income tax expense in the period in which the change is made, which could have a material impact on the Company's effective tax position.

Foreign Currencies

Most of the Company's foreign subsidiaries conduct business primarily in U.S. dollars and, as a result, utilize the dollar as their functional currency. For the remeasurement of financial statements of these subsidiaries, assets and liabilities in foreign currencies that are receivable or payable in cash are remeasured at current exchange rates, while inventories and other non-monetary assets in foreign currencies are remeasured at historical rates. Gains and losses resulting from the remeasurement of such financial statements are included in the operating results, as are gains and losses incurred on foreign currency transactions.

The Company's Japanese subsidiaries utilize Japanese Yen as their functional currency. The assets and liabilities of these subsidiaries are translated at current exchange rates, while revenues and expenses are translated at the average rates in effect for the period. The related translation gains and losses are included in accumulated other comprehensive income or loss within stockholders' equity.

Defined Benefit Plans

The Company maintains pension plans, covering certain of its foreign employees. For financial reporting purposes, net periodic pension costs and pension obligations are calculated based upon a number of actuarial assumptions, including a discount rate for plan obligations, assumed rate of return on pension plan assets and assumed rate of compensation increases for plan employees. All of these assumptions are based upon management's judgment and consultation with an actuary, considering all known trends and uncertainties. See Note 12: "Employee Benefit Plans" for a further discussion of the Company's defined benefit plans.

Contingencies

The Company is involved in a variety of legal matters that arise in the normal course of business. Based on information available, management evaluates the relevant range and likelihood of potential outcomes and records the appropriate liability when the amount is deemed probable and reasonably estimable.

Fair Value Measurement

The Company measures certain of its financial and non-financial assets at fair value by using a fair value hierarchy that prioritizes certain inputs into individual fair value measurement approaches. Fair value is the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value, as follows:


•	Level 1 - Quoted prices in active markets for identical assets or liabilities;


•	Level 2 - Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities;


•	Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

Companies may choose to measure certain financial instruments and certain other items at fair value. Unrealized gains and losses on items for which the fair value option has been elected must be reported in earnings. The Company has elected not to carry its debt instruments at fair value. See Note 14: "Fair Value Measurements" for a description of the carrying amount and fair values of the Company's long term borrowings.

Goodwill And Intangible Assets

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill And Intangible Assets

Goodwill and Intangible Assets

Goodwill

Goodwill is tested for impairment at the reporting unit level, which is one level below the Company's operating segments. For the Company's annual impairment test performed during fourth quarter of 2012, the Company adopted amended FASB guidance which permits the Company to choose to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If based on this assessment the Company determines it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. During the fourth quarter of 2012, the Company performed this qualitative assessment which was comprised of a review and analysis of certain quantitative factors, market conditions and known trends that are specific to the respective reporting units, to conclude that only two of its reporting units required a step 1 test for impairment.

During the first step of the Company's 2012 annual impairment analysis for these two reporting units, the Company determined that the carrying value of the Company's goodwill for one of its reporting units might not have been recoverable. After completing the second step of the Company's 2012 impairment analysis for the identified reporting unit, the Company recognized a goodwill impairment charge of $14.1 million in the Company's Standard Products Group operating segment. The impairment charge resulted from a decline in the operating results of the reporting unit. The reporting unit which did not require a step 2 test had a carrying value for goodwill of approximately $8.7 million with a fair value that exceeded its carrying value by more than 100%.

During the first step of the Company's annual impairment analysis in the fourth quarter of 2011, the Company determined that the carrying value of the Company's goodwill for all reporting units was recoverable.

During the first step of the Company's annual impairment analysis in the fourth quarter of 2010, the Company determined that the carrying value of the Company's goodwill for one of its reporting units might not have been recoverable. After completing the second step of the Company's 2010 impairment analysis for the identified reporting unit, the Company recognized a goodwill impairment charge of $8.9 million in what is now the Company's Standard Products Group. The impairment charge resulted from a decline in the operating results of the reporting unit.

The Company uses the income approach, based on estimated future cash flows, to perform the goodwill impairment test. These estimates include assumptions about future conditions such as future revenues, gross profits, operating expenses, and industry trends. The Company considers other valuation methods, such as the cost approach or market approach, if it is determined that these methods provide a more representative approximation of fair value. The material assumptions used for the income approach for 2012, 2011 and 2010 were five years of projected net cash flows, a weighted-average discount rate of 12.0%, 14.0% and 13.0%, respectively, and a weighted-average long-term growth rate of 3.9%, 3.9% and 3.9%, respectively. The Company considered historical rates and current market conditions when determining the discount and growth rates to use in the Company's analysis.

The following table summarizes goodwill by relevant reportable segment as of December 31, 2012 and December 31, 2011 (in millions):



	Balance as of December 31, 2012										Balance as of December 31, 2011
	Goodwill		Accumulated Amortization			Accumulated Impairment Losses			Carrying Value		Goodwill		Accumulated Amortization			Accumulated Impairment Losses			Carrying Value
Operating Segment:
Application Products Group	$	547.4	$	(4.2	)	$	(406.0	)	$	137.2	$	547.4	$	(4.2	)	$	(406.0	)	$	137.2
Standard Products Group	76.0		(5.6		)	(23.0		)	47.4		76.0		(5.6		)	(8.9		)	61.5
SANYO Semiconductor Products Group	—		—			—			—		—		—			—			—
	$	623.4	$	(9.8	)	$	(429.0	)	$	184.6	$	623.4	$	(9.8	)	$	(414.9	)	$	198.7

The following table summarizes the change in goodwill from December 31, 2010 to December 31, 2012 (in millions):



Net balance as of December 31, 2010	$	191.2
Additions due to business combination	7.5
Net balance as of December 31, 2011	198.7
Impairment charge	(14.1		)
Net balance as of December 31, 2012	$	184.6

Intangible Assets

As a result of the Company's annual goodwill impairment testing, it was determined that certain intangible assets associated with the Standard Products Group were impaired. In connection with this impairment, the Company wrote-off approximately $3.8 million of intangible assets associated with the relevant Standard Products Group operating segment.

Additionally, during the fourth quarter of 2012, the Company evaluated the current period operating results of the SANYO Semiconductor Products Group and re-assessed future projections for the segment. As a result, the Company determined that certain long-lived assets associated with the SANYO Semiconductor Products Group were impaired and wrote-off approximately $126.0 million of long-lived assets, including approximately $31.6 million of associated intangible assets. See Note 6: "Restructuring, Asset Impairments, and Other, net" for a complete discussion of factors influencing the impairment of the SANYO Semiconductor Products Group assets.

Intangible assets, net were as follows as of December 31, 2012 and December 31, 2011 (in millions):



	December 31, 2012
	Original Cost		Accumulated Amortization			Foreign Currency Translation Adjustment			Accumulated Impairment			Carrying Value		Useful Life (in Years)
Intellectual property	$	13.9	$	(8.7	)	$	—		$	(0.4	)	$	4.8	5-12
Assembled workforce	6.7		(6.7		)	—			—			—		5
Customer relationships	280.3		(91.8		)	(26.9		)	(23.0		)	138.6		5-18
Patents	43.7		(16.6		)	—			(13.7		)	13.4		12
Developed technology	146.2		(51.3		)	—			(2.4		)	92.5		5-12
Trademarks	14.0		(5.2		)	—			(1.1		)	7.7		15
In-process research and development	2.5		—			—			(2.5		)	—
Backlog	0.8		(0.8		)	—			—			—		0.3
Total intangibles	$	508.1	$	(181.1	)	$	(26.9	)	$	(43.1	)	$	257.0



	December 31, 2011
	Original Cost		Accumulated Amortization			Foreign Currency Translation Adjustment			Accumulated Impairment			Carrying Value		Useful Life (in Years)
Intellectual property	$	13.9	$	(8.0	)	$	—		$	—		$	5.9	5-12
Assembled workforce	6.7		(6.7		)	—			—			—		5
Customer relationships	280.3		(71.9		)	(26.5		)	(3.2		)	178.7		5-18
Patents	43.7		(10.4		)	—			—			33.3		12
Developed technology	145.6		(35.5		)	—			(2.0		)	108.1		5-12
Trademarks	14.0		(3.4		)	—			—			10.6		15
In-process research and development	3.1		—			—			(2.5		)	0.6
Backlog	$	0.8	$	(0.8	)	$	—		$	—		$	—	0.3
Total intangibles	$	508.1	$	(136.7	)	$	(26.5	)	$	(7.7	)	$	337.2

Amortization expense for intangible assets amounted to $44.4 million for the year ended December 31, 2012, of which none was included in cost of revenues; $43.8 million for the year ended December 31, 2011, of which $1.1 million was included in cost of revenues; and $34.1 million for the year ended December 31, 2010, of which $2.4 million was included in cost of revenues. The Company is currently amortizing thirteen projects totaling $33.4 million through developed technology relating to projects that were originally classified as IPRD at the time of acquisition, but which have been completed and are being amortized over a weighted-average useful life of 8.5 years. Amortization expense for intangible assets is expected to be as follows over the next five years, and thereafter (in millions):



	Total
2013	$	33.0
2014	32.6
2015	31.7
2016	30.6
2017	27.7
Thereafter	101.4
Total estimated amortization expense	$	257.0

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

Business Acquisition, Entity Acquired and Reason for Acquisition [Abstract]

Acquisitions

12 Months Ended

Dec. 31, 2012

Acquisitions

2011 Acquisitions

Acquisition of SANYO Semiconductor Co., Ltd. (the "SANYO Semiconductor Transaction")

On January 1, 2011, the Company paid SANYO Electric Co., Ltd. ("SANYO Electric") $142.1 million in cash and issued a $377.5 million note payable to SANYO Electric, through the Company's subsidiary, Semiconductor Components Industries, LLC ("SCI LLC"), and as a result SANYO Semiconductor Co. Ltd. ("SANYO Semiconductor") became a wholly-owned subsidiary of the Company. During 2011, the Company received $39.7 million in cash from SANYO Electric, of which $19.0 million was considered in the initial purchase accounting estimates, relating to funding adjustments for working capital and pension levels, as defined in the purchase agreement. As a result of these adjustments, the purchase price was reduced to $479.9 million as of December 31, 2011.

SANYO Semiconductor designs, manufactures and sells discrete components, hybrid ICs, radio frequency and power related products as well as custom ICs. Many of these devices fall into the Company’s existing product categories; however, SANYO Semiconductor expands the Company’s capacity in microcontrollers and custom ASICs for the consumer, automotive and industrial end-markets. SANYO Semiconductor also expands the Company’s presence in the Japan market.

The following table presents the fair values of the net assets of SANYO Semiconductor as acquired (in millions):



	Fair Value
Cash and cash equivalents	$	117.1
Receivables, net	242.1
Inventories	400.3
Deferred income taxes current	0.5
Other current assets	119.2
Property, plant and equipment	146.7
Deferred income taxes, non-current	60.5
Intangible assets	55.7
Other non-current assets	14.9
Total assets acquired	1,157.0
Accounts payable	(300.0		)
Deferred income taxes, current	(68.8		)
Other current liabilities	(83.2		)
Deferred income taxes, non-current	(0.5		)
Long-term accrued liabilities	(200.3		)
Total liabilities assumed	(652.8		)
Net assets acquired	504.2
Gain on acquisition	(24.3		)
Purchase price	$	479.9

The acquisition was accounted for as a business purchase pursuant to ASC Topic 805, Business Combinations whereby acquisition costs are not included as components of consideration transferred, but are accounted for as expenses in the period in which the costs are incurred. In 2011, the Company recorded $7.3 million in acquisition related expenses associated with the SANYO Semiconductor Transaction.

Accounting standards require that when the fair value of the net assets acquired exceeds the purchase price, resulting in a bargain purchase gain, the acquirer must reassess the reasonableness of the values assigned to all of the net assets acquired, liabilities assumed and consideration transferred. In 2011, the Company performed such a reassessment and concluded that the values assigned for the SANYO Semiconductor Transaction are reasonable. In 2011, the Company recorded a $24.3 million bargain purchase gain on the SANYO Semiconductor Transaction. The Company believes the gain realized in purchase accounting was the result of a number of factors, including the following: SANYO Electric's intent to exit its semiconductor operations, historical losses recognized by SANYO Electric, SANYO Electric viewed this as the best outcome for SANYO Semiconductor and the fact that the Company would incur expenses associated with the transfer and consolidation of certain operations.

The $55.7 million of acquired intangible assets were assigned a weighted-average useful life of approximately 8.8 years. The intangible assets that make up that amount include: patents of $27.0 million (5.5-year weighted-average useful life), $3.0 million of trademarks (3.0-year weighted-average useful life) and customer relationships of $25.7 million (13.0-year weighted-average useful life). Other current assets acquired includes $80.0 million representing the estimated fair value of a favorable supply arrangement provided by SANYO Electric to the Company in the form of operational cost reduction to the acquired business during the period of time it is effectively required to utilize certain SANYO Electric seconded employees and manufacturing facilities in Japan. This asset has been charged to cost of goods sold over the period of benefit, which was the first 5 months of 2011. The amortization recorded totaled $80.4 million as a result of foreign currency exchange rate changes over the recognition period.

Included in the final allocation of net assets acquired are long-term liabilities assumed representing approximately $50.9 million of underfunded pension obligations relating to existing defined benefit pension plans as well as $144.9 million representing estimated liabilities associated with the Company’s estimated portion of underfunded pension obligations relating to certain employees participating in the SANYO Electric or affiliate multiemployer defined benefit pension plan from which the Company withdrew during 2012. During 2012, the Company established defined benefit pension plans which are intended to provide similar retirement benefits as the SANYO Electric sponsored multiemployer plans. See Note 12: "Employee Benefit Plans" for more information on the Company's employee benefit plans and 2012 withdrawal.

The allocation of the purchase price is based on management estimates and assumptions, and other information compiled by management, which utilized established valuation techniques appropriate for the high-technology industry. The income approach, cost approach or market approach was used based on the nature of the asset or liability and reliability of the data available.

The following presentation of unaudited pro forma consolidated results of operations for the year ended December 31, 2010 has been prepared as if the acquisition of SANYO Semiconductor had occurred on January 1, 2010 and includes adjustments for depreciation expense, amortization of intangibles and the tax effect of such items (in millions, except per share data):



	Proforma
	For Year Ended
	December 31, 2010
Net Revenues	$	3,848.2
Net Income	$	104.1
Net income per common share—Basic	$	0.24
Net income per common share—Diluted	$	0.23

Acquisition of the CMOS Image Sensor Business Unit ("ISBU") from Cypress Semiconductor

On February 27, 2011, the Company acquired 100% of the CMOS ISBU from Cypress Semiconductor Corporation, for approximately $34.1 million in cash. The ISBU business includes a broad portfolio of high-performance custom and standard image sensors used in multi-megapixel machine vision, linear and two dimensional (2D) bar code imaging, medical x-ray imaging, biometrics, digital photography and cinematography, and aerospace applications. The acquired products include the VITA, LUPA, STAR and IBIS families, which are all well known throughout the industry.

The following table presents the allocation of the purchase price of the ISBU to the assets acquired and liabilities assumed on February 27, 2011 based on their fair values (in millions):



	Allocation
Cash and cash equivalents	$	1.5
Receivables, net	2.6
Inventories	9.2
Other current assets	0.4
Property, plant and equipment	1.2
Goodwill	7.5
Intangible assets	11.2
In-process research and development	11.2
Total assets acquired	44.8
Accounts payable	(5.6		)
Other current liabilities	(3.7		)
Other non-current liabilities	(1.4		)
Total liabilities assumed	(10.7		)
Net assets acquired	$	34.1

Of the $22.4 million of acquired intangible assets, $11.2 million was assigned to IPRD assets that will be amortized over the useful life upon successful completion of the projects or expensed if impaired. The value assigned to IPRD was determined by considering the importance of products under development to the overall development plan, estimating costs to develop the purchased IPRD into commercially viable products, estimating the resulting net cash flows from the projects when completed and discounting the net cash flows to their present value. The fair value of IPRD was determined using the income approach. The income approach recognizes that the current value of an asset or liability is premised on the expected receipt or payment of future economic benefits generated over its remaining life. A discount rate of 17.5% was used in the present value calculations, and was derived from a weighted-average cost of capital analysis, adjusted to reflect the risks inherent in the acquired research and development operations.

The remaining $11.2 million of acquired intangible assets have a weighted-average useful life of approximately 6.1 years. The intangible assets that make up the amount include: customer relationships of $4.2 million (6.0-year weighted-average useful life), developed technology of $6.2 million (7.0-year weighted-average useful life) and backlog of $0.8 million (0.3-year weighted-average useful life).

Of the total purchase price of approximately $34.1 million, approximately $7.5 million has been allocated to goodwill. Among the factors that contributed to goodwill arising from the acquisition were the potential synergies expected to be derived from combining the ISBU business with the Company’s existing sensor business. These relationships provided and continue to provide the capability of selling advanced technology of next generation products to the market place. Goodwill will not be amortized but instead tested for impairment at least annually (more frequently if certain indicators are present). The $7.5 million of goodwill as of December 31, 2012 was assigned to the Application Products Group, none of which is expected to be deductible for tax purposes.

The allocation of purchase price is based on management estimates and assumptions, and other information compiled by management, which utilized established valuation techniques appropriate for the high-technology industry. The valuation technique used was the income approach, cost approach or market approach, as determined to be the most appropriate based on the nature of the asset or liability and reliability of the data available.

The Company has determined that pro forma results of operations for the ISBU acquisition are not significant for disclosure.

2010 Acquisitions

Acquisition of Sound Design Technologies LTD

On June 9, 2010, the Company acquired 100% of Sound Design Technologies Ltd. (“SDT”), for $22.0 million in cash for all outstanding stock, and recorded a contingent liability of $1.8 million representing the estimated fair value pursuant to its obligations under an earnout agreement if SDT was able to meet certain revenue objectives in 2010 through 2012. The range of initial potential earn-out payments during the period from 2010 to 2012 is from zero to $10.0 million. During 2011, it was determined based on performance that the earn out potential was zero. SDT is a leading designer and manufacturer of ultra-low-power semiconductor solutions for hearing aids and portable, battery-powered DSP applications, and a leading provider of advanced high density interconnected technologies used in custom minimizing packages. SDT’s advanced manufacturing expertise in chip-scale capacitors and high density packaging will expand the Company’s capabilities in delivering advanced, highly miniaturized packaging technology. SDT’s results of operations have been included in the consolidated financial statements since the date of the acquisition.

The following table presents the allocation of the purchase price of SDT to the assets acquired based on their fair values (in millions):



	Allocation
Receivables, net	$	3.3
Inventories	7.8
Other current assets	1.0
Property, plant and equipment	2.7
Goodwill	5.9
Intangible assets	2.4
In-process research and development	2.8
Other non-current assets	2.0
Total assets acquired	27.9
Accounts payable	(2.2		)
Other current liabilities	(1.9		)
Total liabilities assumed	(4.1		)
Net assets acquired	$	23.8

Of the $5.2 million of acquired intangible assets, $2.8 million was assigned to IPRD assets that are amortized over the useful life upon successful completion of the projects or expensed if impaired. The value assigned to IPRD was determined by considering the importance of products under development to the overall development plan, estimating costs to develop the purchased IPRD into commercially viable products, estimating the resulting net cash flows from the projects when completed and discounting the net cash flows to their present value. The fair value of IPRD was determined using the income approach. The income approach recognizes that the current value of an asset or liability is premised on the expected receipt or payment of future economic benefits generated over its remaining life. A discount rate of 9.0% was used in the present value calculations, and was derived from a weighted-average cost of capital analysis, adjusted to reflect the risks inherent in the acquired research and development operations.

The remaining $2.4 million of acquired intangible assets have a weighted-average useful life of approximately 10 years. The intangible assets that make up the amount include: customer relationships of $1.7 million (15.5-year weighted average useful life) and developed technology of $0.7 million (5.0-year weighted average useful life).

Of the total purchase price of approximately $23.8 million, approximately $5.9 million was initially allocated to goodwill. Among the factors that contributed to goodwill arising from the acquisition were the potential synergies expected to be derived from combining SDT’s design and manufacturing business with the Company’s medical business. These relationships provided and continue to provide the Company with the capability of selling advanced technology of next generation products to the market place. The $8.7 million of goodwill as of December 31, 2012, was assigned to the a Application Products Group, none of which is expected to be deductible for tax purposes.

Acquisition of California Micro Devices Corporation

On January 27, 2010, the Company acquired 100% of California Micro Devices Corporation (“CMD”), through purchasing all of CMD’s issued and outstanding shares of common stock at a purchase price of $4.70 per share, for a total cash payment of approximately $109.5 million and $3.7 million of estimated fair value of stock options and restricted stock, for total consideration of $113.2 million. CMD’s business is primarily engaged in ASIP devices in the wireless, computing and consumer electronics end-markets. In addition, CMD’s expertise in protection solutions for the HBLED market, and its strengths in inductor capacitor-based EMI filtering and low capacitance ESD protection, complement the Company’s existing portfolio of protection and lighting solutions.

The following table presents the allocation of the purchase price of CMD to the assets acquired based on their fair values (in millions):



	Allocation
Cash and cash equivalents	$	42.8
Receivables, net	5.0
Inventories	9.0
Other current assets	2.0
Property, plant and equipment	1.7
Goodwill	20.3
Intangible assets	21.7
In-process research and development	18.6
Other non-current assets	0.1
Total assets acquired	121.2
Accounts payable	(6.2		)
Other current liabilities	(1.6		)
Other non-current liabilities	(0.2		)
Total liabilities assumed	(8.0		)
Net assets acquired	$	113.2

Of the $40.3 million of acquired intangible assets, $18.6 million was assigned to IPRD assets are amortized over the useful life upon successful completion of the projects or expensed, if impaired. The value assigned to IPRD was determined by considering the importance of products under development to the overall development plan, estimating costs to develop the purchased IPRD into commercially viable products, estimating the resulting net cash flows from the projects when completed and discounting the net cash flows to their present value. The fair value of IPRD was determined using the income approach. The income approach recognizes that the current value of an asset or liability is premised on the expected receipt or payment of future economic benefits generated over its remaining life. A discount rate of 13.2% was used in the present value calculations, and was derived from a weighted-average cost of capital analysis, adjusted to reflect additional risks inherent in the acquired research and development operations.

The remaining $21.7 million of acquired intangible assets consist of: (i) developed technology of $17.7 million (8-year weighted-average useful life) and (ii) customer relationships of $4.0 million (10-year weighted average useful life).

Of the total purchase price paid of $113.2 million, approximately $20.3 million was allocated to goodwill. Among the factors that contributed to goodwill arising from the acquisition was the acquisition of an assembled workforce of experienced semiconductor engineers. These experienced engineers provided and continue to provide the capability of developing and integrating advanced technology into next generation products. The balance as of December 31, 2012 was $20.3 million of goodwill assigned to the Standard Products Group, none of which is expected to be deductible for tax purposes.

For the Company's 2010 acquisitions of SDT and CMD, the allocation of the purchase price was based on management estimates and assumptions, and other information compiled by management, which utilized established valuation techniques appropriate for the high-technology industry. The valuation technique used was the income approach, cost approach or market approach, based on the nature of the asset or liability and reliability of the data available.

The Company has determined that, in aggregate, pro forma results of operations for SDT and CMD are not significant for disclosure.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

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Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph F4
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Reference 18: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Restructuring, Asset Impairments And Other, Net

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2012
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Standards Update ("ASU") No. 2013-02 - “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (“ASU 2013-02”) In February 2013, the Financial Accounting Standards Board ("FASB") issued ASU 2013-02, which is intended to improve the reporting of reclassifications out of accumulated other comprehensive income. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income in financial statements. However, the amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. The adoption of this pronouncement is not expected to have a material impact on the Company's consolidated financial statements. ASU No. 2011-08 - “Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment” (“ASU 2011-08”) In September 2011, the FASB issued ASU 2011-08, which is intended to reduce the complexity and cost of performing an evaluation of impairment of goodwill. Under the 2011 guidance, an entity has the option of first assessing qualitative factors (events and circumstances) to determine whether it is more likely than not (meaning a likelihood of more than 50 percent) that the fair value of a reporting unit is less than its carrying amount. If, after considering all relevant events and circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test will be unnecessary. The amendments are effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements. ASU No. 2011-09 - “Compensation - Retirement Benefits - Multiemployer Plans (Subtopic 715-80)” (“ASU 2011-09”) In September 2011, the FASB issued ASU 2011-09, which requires that employers provide additional separate disclosures for multiemployer pension plans and multiemployer other postretirement benefit plans. The additional quantitative and qualitative disclosures will provide users with more detailed information about an employer's involvement in multiemployer pension plans. The amendments are effective for annual disclosures for multiemployer pension plans and multiemployer other postretirement benefit plans for fiscal years ending after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements. ASU No. 2011-04, “Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. Generally Accepted Accounting Principles and IFRS” (“ASU 2011-04”) ASU 2011-04 generally provides a uniform framework for fair value measurements and related disclosures between generally accepted accounting principles and international financial reporting standards (“IFRS”). Additional disclosure requirements in the update include: (1) for Level 3 fair value measurements, quantitative information about the unobservable inputs used, a description of the valuation processes used by the entity, and a qualitative discussion about the sensitivity of the measurements to changes in the unobservable inputs; (2) for an entity's use of a nonfinancial asset that is different from the asset's highest and best use, the reason for the difference; (3) for financial instruments not measured at fair value but for which disclosure of fair value is required, the fair value hierarchy level in which the fair value measurements were determined; and (4) the disclosure of all transfers between Level 1 and Level 2 of the fair value hierarchy. ASU 2011-04 is effective for interim and annual periods beginning on or after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements. ASU No. 2011-05, “Comprehensive Income (Topic 220): Presentation of Comprehensive Income” (“ASU 2011-05”) and ASU 2011-12 “Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05” ("ASU 2011-12") ASU 2011-05 allows an entity to present components of net income and other comprehensive income in one continuous statement, referred to as the statement of comprehensive income, or in two separate, but consecutive statements. The new guidance eliminates the current option to report other comprehensive income and its components in the statement of changes in equity. While ASU 2011-05 changes the presentation of comprehensive income, there are no changes to the components that are recognized in net income or other comprehensive income under current accounting guidance. In December 2011, the FASB issued ASU 2011-12 , which deferred certain aspects of ASU 2011-05. The new guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements.

Restructuring, Asset Impairments And Other, Net

12 Months Ended

Dec. 31, 2012

Restructuring Charges [Abstract]

Restructuring, Asset Impairments and Other, Net

A summary description of the activity included in the “Restructuring, Asset Impairments and Other, net” caption on the consolidated statement of operations for the years ended December 31, 2012, 2011 and 2010 is as follows (in millions):



	Restructuring		Asset Impairments		Other			Total
Year Ended December 31, 2012
2012 global workforce reduction	$	11.2	$	—	$	—		$	11.2
SANYO Semiconductor asset impairment	—		94.4		—			94.4
Voluntary retirement program at SANYO Semiconductor	47.6		—		(11.7		)	35.9
Aizu facility closure	9.0		4.5		0.1			13.6
SANYO Semiconductor consolidation	3.6		—		—			3.6
Other (1)	2.0		4.1		0.5			6.6
Total	$	73.4	$	103.0	$	(11.1	)	$	165.3
Year Ended December 31, 2011
Thailand facility closure	$	5.7	$	24.8	$	(18.6	)	$	11.9
Aizu facility closure	6.5		61.5		2.0			70.0
SANYO Semiconductor consolidation	10.0		—		—			10.0
Japan earthquake and tsunami	—		—		4.8			4.8
Phoenix wafer manufacturing facility closure	4.3		—		—			4.3
Other (1)	1.2		—		0.5			1.7
Total	$	27.7	$	86.3	$	(11.3	)	$	102.7
Year Ended December 31, 2010
Acquisition of Sound Design Technologies	$	2.2	$	—	$	—		$	2.2
Acquisition of California Micro Devices	3.5		0.1		—			3.6
Cost basis investment write-off	—		—		3.9			3.9
Other (1)	0.3		0.1		0.4			0.8
Total	$	6.0	$	0.2	$	4.3		$	10.5

(1) Includes charges related to the certain reductions in workforce, certain acquisitions, executive severance, facility closures, asset disposal activity and certain other activity which is not considered to be significant.

Restructuring

The following is a rollforward of the accrued restructuring charges from December 31, 2011 to December 31, 2012 (in millions):



	Balance as of December 31, 2011		Charges		Usage			Adjustments			Balance as of December 31, 2012

Estimated employee separation charges	$	8.9	$	67.8	$	(60.7	)	$	(0.5	)	$	15.5

Estimated costs to exit	$	8.4	$	5.6	$	(12.2	)	$	(0.2	)	$	1.6

The following is a rollforward of the accrued restructuring charges from December 31, 2010 to December 31, 2011 (in millions):



	Balance as of December 31, 2010		Charges		Usage			Adjustments			Balance as of December 31, 2011

Estimated employee separation charges	$	1.4	$	25.8	$	(18.3	)	$	—		$	8.9

Estimated costs to exit	$	9.9	$	3.3	$	(3.3	)	$	(1.5	)	$	8.4

The activity related to the Company’s significant restructuring programs that were either initiated in 2012 or had not been completed as of December 31, 2012, are as follows:

2012 Global Workforce Reduction

In the third quarter of 2012, the Company initiated a global workforce reduction program for cost savings purposes. A total of 232 employees were notified of their termination, of which 206 were exited as of December 31, 2012. For the year ended December 31, 2012, the Company recorded employee separation charges of approximately $11.2 million related to this program.

As of December 31, 2012, the accrued liability associated with employee separation charges was $4.0 million. The Company expects to incur additional severance and related benefits of $0.1 million related to this plan, which is expected to be completed by the fourth quarter of 2013.

Voluntary Retirement Program at SANYO Semiconductor

During the year ended December 31, 2012, the Company initiated a voluntary retirement program for employees of SANYO Semiconductor and certain of its subsidiaries. During 2012, a total of 558 employees accepted voluntary retirement packages, and the Company recorded employee separation charges of approximately $47.6 million related to this program. As a result of the headcount reduction, the Company recorded an adjustment to the pension and related retirement liabilities associated with these employees, which resulted in a benefit of $11.7 million, which is recorded as other charges.

As of December 31, 2012, the accrued liability associated with employee separation charges was $2.1 million. The Company expects to incur additional job outplacement services of $0.3 million related to this plan, which is expected to be completed by the third quarter of 2013.

Thailand Facility Closure

Cumulative charges of $13.8 million, net of adjustments, have been recognized through December 31, 2012, related to the 2011 plan to close the Company's probe, assembly and test operations in Ayutthaya, Thailand and to partially close the Company's Bang Pa In, Thailand facility as a result of the flooding in these regions. During the year ended December 31, 2011, a total of approximately 1,600 employees were asked to resign due to such closures. As of December 31, 2012, no employees remained to be exited. For the year ended December 31, 2012, the Company recorded employee separation charges of approximately $1.5 million related to these terminations. Additionally, the Company recorded other net charges of $0.4 million, which represented $4.5 million of costs incurred associated with the closure and partial closure of these facilities, partially offset by $3.0 million of additional insurance proceeds and $1.1 million of gain on the sale of fixed assets.

There was no accrued liability associated with employee separation charges and $0.5 million of accrued liabilities associated with other exit costs as of December 31, 2012. The Company expects to incur minimal additional exit costs during 2013 for this program as the assets are held for sale. All payments associated with this program are expected to be completed by the end of the second quarter of 2013.

Aizu Facility Closure

Cumulative charges of $83.6 million, net of adjustments, have been recognized through December 31, 2012, related to the announced closure of the Company's Aizu facility, for cost savings purposes. As of December 31, 2012, a total of 207 employees have been notified that their employment with the Company will be terminated due to the closure of the Aizu facilities. As of December 31, 2012, 148 of these employees had been exited. For the year ended December 31, 2012, the Company recognized restructuring charges of $9.0 million related to severance benefits for employees required to give further services prior to receiving these termination benefits. Additionally, the Company impaired the carrying value of the Aizu site by $4.5 million to reflect its realizable value based on current negotiations for the sale of the site.

The accrued liability associated with employee separation charges at the Aizu facility was $9.9 million as of December 31, 2012. Additionally, the Company expects to incur additional employee separation charges of approximately $0.4 million for employee outplacement service in 2013 and between $3.0 million and $6.0 million in exit costs.

SANYO Semiconductor Consolidation

Cumulative charges of $13.6 million, net of adjustments, have been recognized through December 31, 2012, related to the 2011 announced plans to integrate and restructure the operations of SANYO Semiconductor and the Company, in part for cost savings purposes. For the year ended December 31, 2012, the Company recorded an incremental $3.6 million of restructuring charges relating to the consolidation of factories.

There was no remaining accrued liability associated with the SANYO Semiconductor consolidation program as of December 31, 2012. The Company expects to incur no additional charges associated with this program.

SANYO Semiconductor Products Group Asset Impairments

During the fourth quarter of 2012, the Company evaluated the recoverability of the long-lived assets of the SANYO Semiconductor Products Group due to the continued declines in revenue and operating performance that began in the fourth quarter of 2011. The initial decline in revenue was attributed to the Thailand flooding that occurred in October 2011, which permanently damaged that facility. As a result of that event, the Company transferred the impacted production to alternate facilities and restored the manufacturing capacity during the first half of 2012. Although the manufacturing capacity was restored, the customer demand had declined for those products during the second half of 2012 due to a combination of the following factors: customers identifying alternate suppliers, a cyclical decline in the semiconductor industry, adverse economic factors in Japan which led to a general softening of demand for Japanese consumer products, and political tensions between Japan and China.

Due to a culmination of these factors, the Company revised its long-term projections related to its SANYO Semiconductor Products Group. These revised projections included material additional cost reduction efforts and a lower revenue base than previously assumed. As a result, the Company recorded an impairment charge of $126.0 million which was comprised of a $94.4 million charge to reduce the carrying value of the associated fixed assets and a $31.6 million charge to reduce the carrying value of the associated intangible assets to their respective fair values. See Note 3: "Goodwill and Intangibles Assets" for further details on the specific intangibles that were impaired and see Note 20: "Subsequent Events" for further details on cost savings and related restructuring activities expected for the SANYO Semiconductor Products Group in 2013.

See Note 14: "Fair Value Measurements" for a description of certain assumptions used in the measurement of fair value for the SANYO Semiconductor Products Group impairments.

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Information

12 Months Ended

Dec. 31, 2012

Balance Sheet Information



	December 31, 2012			December 31, 2011
Receivables, net:
Accounts receivable	$	360.5		$	464.3
Less: Allowance for doubtful accounts	(2.7		)	(7.1		)
	$	357.8		$	457.2
Inventories:
Raw materials	$	73.2		$	58.8
Work in process	310.9			430.8
Finished goods	197.6			147.8
	$	581.7		$	637.4
Other Current Assets: (1)
Prepaid expenses	24.3			26.9
Value added tax receivables	34.3			41.0
Other	53.1			53.7
	$	111.7		$	121.6
Property, plant and equipment, net: (2)
Land	$	67.4		$	76.6
Buildings	572.4			539.3
Machinery and equipment	1,979.4			1,943.0
Total property, plant and equipment	2,619.2			2,558.9
Less: Accumulated depreciation	(1,515.9		)	(1,449.4		)
	$	1,103.3		$	1,109.5
Accrued expenses:
Accrued payroll	$	102.9		$	125.2
Sales related reserves	64.9			45.5
Restructuring reserves	17.1			17.3
Accrued pension liability	7.4			11.4
Other	36.0			40.4
	$	228.3		$	239.8
Accumulated other comprehensive income (loss), net of tax of $0:
Foreign currency translation adjustments	$	(42.2	)	$	(46.5	)
Unrecognized prior service cost of defined benefit pension plan	(0.1		)	(0.2		)
Effects of cash flow hedges	0.8			—
Unrealized (gain) or loss on available for sale securities	0.4			—
	$	(41.1	)	$	(46.7	)


(1)	Included in other current assets are $1.0 million of fixed assets that are held-for-sale as of December 31, 2012.


(2)	Included in property, plant and equipment are $8.3 million of fixed assets that are held-for-sale as of December 31, 2012.

Depreciation expense for property, plant and equipment, including amortization of capital leases, totaled $180.8 million, $162.8 million and $115.1 million for 2012, 2011 and 2010, respectively.

As of December 31, 2012 and 2011, total property, plant and equipment included $79.7 million and $89.5 million, respectively, of assets financed under capital leases. Accumulated depreciation associated with these assets is included in total accumulated depreciation in the table above.

Included in accumulated other comprehensive loss is $19.6 million of foreign currency translation gains related to the Company's subsidiary that owns the Aizu facility, which utilizes the Japanese Yen as its functional currency. As further described in Note 6: "Restructuring, Asset Impairments and Other, net", the Company closed its Aizu, Japan facility during 2012. After the operational closure is complete in 2013, the Company will proceed to liquidate and wind-down the legal entity. As required by accounting standards, when the liquidation is substantially complete, the Company will recognize in results of operations any amount remaining in accumulated other comprehensive income.

The activity related to the Company's warranty reserves for 2010, 2011 and 2012 follows (in millions):



Balance as of December 31, 2009	$	3.2
Provision	0.9
Usage	(0.8		)
Balance as of December 31, 2010	3.3
Provision	4.0
Usage	(1.5		)
Balance as of December 31, 2011	5.8
Provision	8.1
Usage	(3.7		)
Balance as of December 31, 2012	$	10.2

Long-Term Debt

12 Months Ended

Dec. 31, 2012

Long-term Debt, Unclassified [Abstract]

Long-Term Debt

Long-term debt consists of the following (dollars in millions):



	December 31, 2012			December 31, 2011
Senior Revolving Credit Facility (up to $325.0 million)	$	—		$	—
Loan with a Japanese company due 2013 through 2018, interest payable quarterly at 2.06% and 2.33%, respectively (1)	302.0			339.8
2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)	125.5			207.9
2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)	274.2			176.6
Zero Coupon Convertible Senior Subordinated Notes due 2024 (net of discount of $0.0 and $2.0 million, respectively) (4)	—			94.2
1.875% Convertible Senior Subordinated Notes due 2025 (net of discount of $0.0 million and $6.6 million, respectively) (5)	73.4			88.4
Loan with Hong Kong bank, interest payable weekly at 1.96% and 2.04%, respectively (7)	30.0			40.0
Loans with Philippine banks due 2013 through 2015, interest payable monthly and quarterly at an average rate of 1.97% and 2.01%, respectively (9)	45.8			68.2
Loan with Chinese bank due 2014, interest payable quarterly at 3.41% and 4.44%, respectively (10)	7.0			7.0
Loans with Japanese banks due through 2013, interest payable monthly and semi-annually at an average rate of 1.58% and 1.71%, respectively (10)	0.8			3.5
Loan with Singapore bank, interest payable weekly at 1.95% and 1.97%, respectively (7)	15.0			25.0
Loan with British finance company, interest payable monthly at 1.51% and 2.42%, respectively (7)	3.3			13.1
U.S. real estate mortgages payable monthly through 2016 at an average rate of 4.86% (8)	29.8			31.6
U.S. equipment financing payable monthly through 2016 at 2.94% and 3.23%, respectively (6)	14.0			10.8
Capital lease obligations	91.1			100.9
Long-term debt, including current maturities	1,011.9			1,207.0
Less: Current maturities	(353.6		)	(370.1		)
Long-term debt	$	658.3		$	836.9

_______________________


(1)	This loan represents SCI LLC's unsecured loan with SANYO Electric, which is guaranteed by the Company.


(2)	The 2.625% Convertible Senior Subordinated Notes due 2026 may be put back to the Company at the option of the holders of the notes on December 15 of 2013, 2016 and 2021 or called at the option of the Company on or after December 20, 2013.


(3)	The 2.625% Convertible Senior Subordinated Notes due 2026, Series B may be put back to the Company at the option of the holders of the notes on December 15 of 2016 and 2021 or called at the option of the Company on or after December 20, 2016.


(4)	The Zero Coupon Convertible Senior Subordinated Notes due 2024 were repaid on April 16, 2012.


(5)	The 1.875% Convertible Senior Subordinated Notes due 2025 were partially redeemed by the Company on December 20, 2012. The balance as of December 31, 2012 represents notes submitted for conversion which is subject to a 20 consecutive trading-day observation period for settlement in January 2013.


(6)	Debt arrangement secured by equipment


(7)	Debt arrangement secured by accounts receivable


(8)	Debt arrangement secured by real estate


(9)	$7.5 million unsecured and $38.3 million secured by equipment and $10.0 million unsecured and $58.2 million secured by equipment, respectively


(10)	Unsecured debt arrangement

Annual maturities relating to the Company’s long-term debt as of December 31, 2012 are as follows (in millions):



	Annual Maturities
2013	360.7
2014	93.1
2015	71.6
2016	364.4
2017	29.1
Thereafter	124.3
Total	$	1,043.2

The above table reflects aggregate principal payments of $504.4 million relating to the 1.875% Convertible Senior Subordinated Notes due 2025, the 2.625% Convertible Senior Subordinated Notes due 2026 and the 2.625% Convertible Senior Subordinated Notes due 2026, Series B. For purposes of the table above, the convertible debt is assumed to mature at the first put date.

Redemption, Conversion and Retirement of Debt

On December 19, 2012, the holders of approximately $73.4 million in aggregate outstanding principal amount of the 1.875% Convertible Senior Subordinated Notes due 2025 (the "1.875% Notes") submitted their 1.875% Notes for conversion at a rate of 142.8571 shares of the Company's common stock per $1,000 principal amount of their 1.875% Notes. The Company elected to satisfy its conversion obligation with respect to each $1,000 principal amount of notes tendered for conversion by delivering cash equal to the sum of the daily settlement amount for each of the 20 consecutive trading days during the observation period for the 1.875% Notes on the settlement date, as provided for in the Indenture.

On December 20, 2012, the Company redeemed approximately $21.6 million of the outstanding aggregate principal amount of the 1.875% Notes at par value plus accrued and unpaid interest up to, but excluding, the redemption date.

Subsequent to December 31, 2012, the Company settled the conversion obligation on the outstanding 1.875% Notes on January 28, 2013, by delivering approximately $77.5 million in cash to the holders who tendered their 1.875% Notes for conversion. The excess $4.1 million over the $73.4 million in aggregate outstanding principal amount of the 1.875% Notes was attributable to the 1.875% Note's conversion feature.

The settlement of the conversion obligation on January 28, 2013 resulted in the retirement of the obligation under the 1.875% Notes.

On April 16, 2012, the Company exercised its call option relating to its Zero Coupon Convertible Senior Subordinated Notes due 2024. As a result, the Company paid the gross principal amount of $96.2 million to the holders of the notes and retired the outstanding obligation.

Loss on Debt Repurchase or Exchange

As further described below, the Company recognized a net loss of $7.8 million, $23.2 million and $0.7 million for the years ended December 31, 2012, 2011 and 2010, respectively, on the modification, prepayments, exchange or repurchase of certain of its Convertible Senior Subordinated Notes and senior bank facilities.

On September 4, 2012, the Company exchanged $99.9 million in par value ($92.8 million of carrying value) of its 2.625% Convertible Senior Subordinated Notes due 2026 for $99.9 million in par value of 2.625% Convertible Senior Subordinated Notes due 2026, Series B and $2.0 million in cash. Subject to certain other terms and conditions, this exchange extended the first put date, which we consider to be the earliest maturity date, for the exchanged amount from December 2013 to December 2016. The cash payment and the $99.9 million of the 2.625% Convertible Senior Subordinated Notes due 2026, Series B were allocated between the fair value of the liability component and the equity component of the convertible security. The amount allocated to the extinguishment of the liability component was based on the discounted cash flows using a rate of return an investor would have required on non-convertible debt with other terms substantially similar to the 2.625% Convertible Senior Subordinated Notes due 2026. The remaining consideration was recognized as re-acquisition of the equity component.

The difference between the consideration allocated to the liability component and the rest of the net carrying amount of the liability and unamortized debt issuance costs was recorded as a loss on debt exchange of $7.8 million, which included the write-off of $0.6 million in unamortized debt issuance costs. The Company also recorded an adjustment to additional paid-in capital in the amount of $1.9 million for the re-acquisition of the equity component.

During the year ended December 31, 2011, the Company exchanged $198.6 million in par value ($177.2 million of carrying value) of its 2.625% Convertible Senior Subordinated Notes due 2026 for $198.6 million in par value ($176.4 million of carrying value) of 2.625% Convertible Senior Subordinated Notes due 2026, Series B and $15.9 million in cash. Subject to certain other terms and conditions, this exchange extended the earliest debt maturity date, which we consider to be the first put date, for the exchanged amount from December 2013 to December 2016. The cash payment and the $198.6 million of 2.625% Convertible Senior Subordinated Notes due 2026, Series B were allocated between the fair value of the liability component and the equity component of the convertible security. The amount allocated to the extinguishment of the liability component was based on the discounted cash flows using a rate of return an investor would have required on non-convertible debt with other terms substantially similar to the 2.625% Convertible Senior Subordinated Notes due 2026. The remaining consideration was recognized as re-acquisition of the equity component.

The difference between the consideration allocated to the liability component and the rest of the net carrying amount of the liability and unamortized debt issuance costs was recorded as a loss on debt repurchase of $23.2 million, which included the write-off of $1.7 million in unamortized debt issuance costs. The Company also recorded an adjustment to additional paid-in capital in the amount of $21.0 million for the re-acquisition of the equity component.

Additionally, during the year ended December 31, 2011, the Company also repurchased $53.0 million in par value ($46.6 million of carrying value) of its 2.625% Convertible Senior Subordinated Notes due 2026 for $56.2 million in cash. The cash payment was allocated between the fair value of the liability component and the equity component of the convertible security. The amount allocated to the extinguishment of the liability component was based on the discounted cash flows using a rate of return an investor would have required on non-convertible debt with other terms substantially similar to the 2.625% Convertible Senior Subordinated Notes due 2026. The remaining consideration was recognized as re-acquisition of the equity component.

The difference between the consideration allocated to the liability component and the rest of the net carrying amount of the liability and unamortized debt issuance costs was recorded as a loss on debt repurchase of $5.3 million, which included the write-off of $0.5 million in unamortized debt issuance costs. The Company also recorded an adjustment to additional paid-in capital in the amount of $4.8 million for the re-acquistion of the equity component.

During the year ended December 31, 2010, the Company incurred a loss on debt repurchase of $0.7 million as a result of the write-off of unamortized debt issuance costs, related to the $169.8 million prepayment of the senior bank facilities and a $0.1 million gain as a result of the modification of the Zero Coupon Convertible Senior Subordinated Notes due 2024.

Acquisition Note Payable to SANYO Electric

In January 2011, SCI LLC, as borrower, and the Company, as guarantor, entered into a seven-year, unsecured loan agreement with SANYO Electric to finance a portion of the purchase price of the SANYO Semiconductor Transaction. The loan had an original principal amount of approximately $377.5 million and had a principal balance of $302.0 million as of December 31, 2012. The loan bears interest at a rate of 3-month LIBOR plus 1.75% per annum and provides for quarterly interest and $9.4 million in principal payments, with the unpaid balance of $122.7 million due in January 2018.

Senior Revolving Credit Facility

On December 23, 2011, the Company and its wholly owned subsidiary, SCI LLC, entered into a $325.0 million, five-year senior revolving credit facility (the "Facility"), the terms of which are set forth in a Credit Agreement dated as of December 23, 2011 ("Credit Agreement") between the Company and a group of lenders. The Facility includes $40.0 million availability for the issuance of letters of credit, $15.0 million availability for swingline loans for short-term borrowings and a foreign currency sublimit of $75.0 million. SCI LLC has the ability to increase the size of the Facility from time-to-time in increments of $10.0 million so long as after giving effect to such increases, the aggregate amount of all such increases does not exceed $125.0 million.

Payments of the principal amounts of revolving loans under the Credit Agreement are due no later than December 23, 2016, which is the maturity date of the Facility. Interest is payable based on either a LIBOR or base rate option, plus an applicable rate that varies based on the total leverage ratio. SCI LLC has also agreed to pay the lenders certain fees, including a commitment fee that varies based on the total leverage ratio. SCI LLC may prepay loans under the Credit Agreement at any time, in whole or in part, upon payment of accrued interest and break funding payments, if applicable.

The obligations under the Facility are guaranteed by certain of the domestic subsidiaries of the Company and SCI LLC and are secured by a pledge of the equity interests in certain of the Company and SCI LLC's domestic subsidiaries. The Company and SCI LLC were also required to pledge certain of their equity interests in certain material first tier foreign subsidiaries within a specified time after closing.

The Credit Agreement contains affirmative and negative covenants that are customary for credit agreements of this nature. The negative covenants include, among other things, limitations on asset sales, mergers and acquisitions, indebtedness, liens, investments and transactions with affiliates. The Credit Agreement contains only two financial covenants: (i) a maximum total leverage ratio of consolidated total indebtedness to consolidated earnings before interest, taxes, depreciation and amortization ("consolidated EBITDA") for the trailing four consecutive quarters of 3.75 to 1.00; and (ii) a minimum interest coverage ratio of consolidated EBITDA to consolidated interest expense for the trailing four consecutive quarters of 3.50 to 1.0.

The Credit Agreement includes customary events of default that include, among other things, non-payment defaults, inaccuracy of representations and warranties, covenant defaults, cross default to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults, ERISA defaults and a change of control default. The occurrence of an event of default could result in the acceleration of the obligations under the Credit Agreement. The Company believes that it was in compliance with the various covenants contained in the Credit Agreement as of December 31, 2012 and expects to remain in compliance with all covenants over at least the next twelve months.

The Company can utilize the borrowings under the Facility for areas such as general corporate purposes, working capital and acquisitions. While there is no balance due on the Facility as of December 31, 2012, a letter of credit is outstanding under the Facility in the amount of $0.2 million. Included in other assets as of December 31, 2012, were $1.9 million of debt issuance costs associated with the senior revolving credit facility.

On June 28, 2012, the Company amended its Senior Revolving Credit Facility to permit certain derivative transactions related to share repurchase transactions.

Zero Coupon Convertible Senior Subordinated Notes

On April 6, 2004, the Company commenced a cash tender offer for all of its then outstanding 12% senior subordinated notes due 2009. In order to finance the cash tender offer, the Company issued $260.0 million of Zero Coupon Convertible Senior Subordinated Notes due 2024. The Company received net proceeds of approximately $251.2 million from the sale of the notes after deducting commissions and estimated offering expenses of $8.8 million, which were capitalized as debt issuance costs and were being amortized using the effective interest method through the first put date of April 15, 2010. The notes did not bear cash interest, nor did the principal amount accrete. The effective interest rate of the notes was 8.9%. The notes were fully and unconditionally guaranteed on an unsecured senior subordinated basis by certain existing domestic subsidiaries of the Company.

In June 2006, the Company commenced an offer to exchange all of its then outstanding $260.0 million principal amount of Zero Coupon Convertible Senior Subordinated Notes due 2024 (the "Old Notes") for a like principal amount of new Zero Coupon Convertible Senior Subordinated Notes due 2024 (the "New Notes"), plus an exchange fee of $2.50 per $1,000 principal amount of the Old Notes validly tendered and accepted for exchange. The New Notes contained a net share settlement feature, which reduced the amount of shares included in diluted net income per share. On July 21, 2006, the Company issued $259.5 million aggregate principal at par of New Notes that were convertible into cash up to the par value at a conversion rate of 101.8849 shares per $1,000 principal amount under certain circumstances. The excess of fair value over par value was convertible into stock. The exchange expired on July 19, 2006, and 99.8% of the aggregate principal amount of the Old Notes were tendered and subsequently exchanged. On August 9, 2006, the Company entered into transactions with four of the remaining holders of the Old Notes and exchanged $443,000 aggregate principal at par of Old Notes that were not tendered in the exchange. These holders exchanged their Old Notes for New Notes on the same terms as the exchange offer discussed above.

In the fourth quarter of 2008, the Company repurchased $60.9 million of par value of Zero Coupon Convertible Senior Subordinated Notes due 2024 for $49.4 million. Additionally, the Company wrote off the proportionate share of debt issuance costs of $0.5 million, thus recognizing a net $3.8 million gain on the extinguishment of the debt.

In the first half of 2009, the Company repurchased $99.7 million of par value of Zero Coupon Convertible Senior Subordinated Notes due 2024 for $64.8 million in cash and the issuance of 7.4 million shares of common stock, which had a value of $28.5 million based on the closing price of the Company's common stock at the time of repurchase. The Company recognized a $3.1 million loss on the repurchase, which included the write-off of $0.7 million in unamortized debt issuance costs.

The New Notes were convertible by holders into cash and shares of the Company's common stock at a conversion rate of 101.8849 shares of common stock per $1,000 principal amount of notes (subject to adjustment in certain events), which was equivalent to an initial conversion price of approximately $9.815 per share of common stock. The Company was required to settle conversion of all notes validly tendered for conversion in cash and shares of the Company's common stock, if applicable, subject to the Company's right to pay the share amount in additional cash. Holders could convert their notes under the following circumstances: (i) during the five business-day period immediately following any five consecutive trading-day period in which the trading price per $1,000 principal amount of notes for each day of such period was less than 98% of the product of the closing sale price of the Company's common stock and the conversion rate; (ii) upon occurrence of the specified transactions described in the Indenture relating to the notes; or (iii) after April 15, 2010. The Company determined that the conversion option based on a trading price condition met the definition of a derivative, and should be bifurcated from the debt host and accounted for separately. However, the fair value of this feature was determined to be de minimis at the date of issuance and the Company continued to evaluate the significance of this feature on a quarterly basis.

In April 2010, the Company amended the Indenture for its Zero Coupon Convertible Senior Subordinated Notes due 2024. The amendments included one additional opportunity to require the Company to purchase the notes on April 15, 2012 and eliminated the Company's ability to redeem the notes at its option from April 15, 2010 until April 15, 2012. Additionally the holders could require the Company to repurchase the notes for cash on April 15, 2014 and 2019.

In accordance with the right of the holders of the notes to require the Company to purchase the notes on April 15, 2010, approximately $3.2 million of the $99.4 million par value of notes then outstanding were purchased by the Company. The amendment was considered a substantial modification for accounting purposes; therefore, the $96.2 million original remaining debt was deemed to be extinguished, resulting in a $0.1 million gain, and a new convertible debt with fair value of $98.5 million was deemed to be issued.

The Company is required to separately account for the liability and equity components of convertible debt instruments with cash settlement features. Thus, the liability component of the new convertible debt was recognized at the present value of its cash flows discounted using a discount rate equivalent to the borrowing rate at the date of the modification of the convertible notes for similar debt instruments without a conversion feature. The equity component of the new convertible debt was recorded as additional paid in capital and represented the difference between the fair value of the modified convertible notes and the liability component. It also requires an accretion of the debt discount resulting from the allocation of a portion of the modified fair value to equity over the life of the notes, which was expected to be the next put date of April 15, 2012.

As a result, the Company recognized $13.3 million of debt discount, which was amortized through April 2012. Included in long-term debt as of December 31, 2011 was $2.0 million of unamortized debt discount associated with the Zero Coupon Convertible Senior Subordinated Notes due 2024, which was amortized using the effective interest method through 2012.

The notes, which were the Company's unsecured obligations, were subordinated in right of payment to all of the Company's existing and future senior indebtedness, ranked pari passu in right of payment with all of the Company's existing and future senior subordinated indebtedness and senior in right of payment to all of the Company's existing and future subordinated obligations. The notes were also effectively subordinated to any of the Company's or its subsidiaries' secured indebtedness to the extent of the value of the assets securing such indebtedness.

As noted above, on April 16, 2012, the Company exercised its call option relating to its Zero Coupon Convertible Senior Subordinated Notes due 2024. As a result, the Company paid the gross principal amount of $96.2 million to the holders of the notes and retired the outstanding obligation.

1.875% Convertible Senior Subordinated Notes

In order to finance the repayment of a previously outstanding junior subordinated note, on December 21, 2005, the Company issued $95.0 million of 1.875% Convertible Senior Subordinated Notes due 2025. The Company received net proceeds of approximately $91.0 million from the sale of the notes after deducting commissions and estimated offering expenses of $4.0 million, which were capitalized as debt issuance costs and were being amortized using the effective interest method through the first put date of December 15, 2012. The notes bore interest at the rate of 1.875% per year from the date of issuance. Interest on the notes was payable on June 15 and December 15 of each year, beginning on June 15, 2006. The effective interest rate of the notes was 9.5%. The notes were fully and unconditionally guaranteed on an unsecured senior subordinated basis by certain existing domestic subsidiaries of the Company.

The notes were convertible by holders into cash and shares of the Company's common stock at a conversion rate of 142.8571 shares of common stock per $1,000 principal amount of notes (subject to adjustment in certain events), which was equivalent to an initial conversion price of approximately $7.00 per share of common stock. The Company was required to settle conversion of all notes validly tendered for conversion in cash and shares of the Company's common stock, if applicable, subject to the Company's right to pay the share amount in additional cash. Holders could convert their notes under the following circumstances: (i) during the five business-day period immediately following any five consecutive trading-day period in which the trading price per $1,000 principal amount of notes for each day of such period was less than 103% of the product of the closing sale price of the Company's common stock and the conversion rate; (ii) upon occurrence of the specified transactions described in the Indenture relating to the notes; or (iii) after June 15, 2012. The Company determined that the conversion option based on a trading price condition met the definition of a derivative, and should be bifurcated from the debt host and accounted for separately. However, the fair value of this feature was determined to be de minimis at the date of issuance and the Company continued to evaluate the significance of this feature on a quarterly basis.

The notes were to mature on December 15, 2025. Beginning December 20, 2012, the Company could redeem the notes, in whole or in part, for cash at a price of 100% of the principal amount plus accrued and unpaid interest to, but excluding, the redemption date. If a holder elected to convert its notes in connection with the occurrence of specified fundamental changes that occurred prior to December 15, 2012, the holder was entitled to receive, in addition to cash and shares of common stock equal to the conversion rate, an additional number of shares of common stock, in each case as described in the Indenture. Notwithstanding these conversion rate adjustments, these notes contained an explicit limit on the number of shares issuable upon conversion. Holders could require the Company to repurchase the notes for cash on December 15 of 2012, 2015 and 2020 at a repurchase price equal to 100% of the principal amount of such notes, plus accrued and unpaid interest, to, but excluding, the repurchase date. Upon the occurrence of certain corporate events, each holder could require the Company to purchase all or a portion of such holder's notes for cash at a price equal to the principal amount of such notes, plus accrued and unpaid interest, to, but excluding, the repurchase date.

The notes which were the Company's unsecured obligations, were subordinated in right of payment to all of the Company's existing and future senior indebtedness, ranked pari passu in right of payment with all of the Company's existing and future senior subordinated indebtedness and were senior in right of payment to all of the Company's existing and future subordinated obligations. The notes were also effectively subordinated to any of the Company's or its subsidiaries' secured indebtedness to the extent of the value of the assets securing such indebtedness.

As noted above, on December 20, 2012, the Company redeemed approximately $21.6 million of the outstanding aggregate principal amount of the 1.875% Notes. Subsequently, on January 28, 2013, the Company paid the remaining gross principal amount due to retire the obligation under the 1.875% Notes.

There were no remaining debt issuance costs or unamortized debt discount amounts associated with the 1.875% Notes as of December 31, 2012. Included in other assets as of December 31, 2011, were $0.5 million of debt issuance costs associated with the 1.875% Notes, which were amortized using the effective interest method through 2012. Included in long-term debt as of December 31, 2011 was $6.6 million of unamortized debt discount associated with the 1.875% Notes, which was amortized using the effective interest method through 2012.

2.625% Convertible Senior Subordinated Notes

On December 15, 2006, the Company issued $484.0 million of 2.625% Convertible Senior Subordinated Notes due 2026. The Company received net proceeds of approximately $471.7 million from the sale of the notes after deducting commissions and estimated offering expenses of $13.3 million, which were capitalized as debt issuance costs and are being amortized using the effective interest method through the first put date of December 15, 2013. The Company used the net proceeds to repay $199.1 million outstanding principal of its senior bank facilities and to repurchase 30.7 million shares of its common stock outstanding for $230.0 million and the remainder for general corporate purposes. The notes bear interest at the rate of 2.625% per year from the date of issuance. Interest on the notes is payable on June 15 and December 15 of each year, beginning on June 15, 2007. The effective interest rate of the notes is 8.5%. The notes are fully and unconditionally guaranteed on an unsecured senior subordinated basis by certain existing domestic subsidiaries of the Company.

The notes are convertible by holders into cash and shares of the Company's common stock at a conversion rate of 95.2381 shares of common stock per $1,000 principal amount of notes (subject to adjustment in certain events), which is equivalent to an initial conversion price of approximately $10.50 per share of common stock. The Company will settle conversion of all notes validly tendered for conversion in cash and shares of the Company's common stock, if applicable, subject to the Company's right to pay the share amount in additional cash. Holders may convert their notes under the following circumstances: (i) during the five business-day period immediately following any five consecutive trading-day period in which the trading price per $1,000 principal amount of notes for each day of such period was less than 103% of the product of the closing sale price of the Company's common stock and the conversion rate; (ii) upon occurrence of the specified transactions described in the Indenture relating to the notes; or (iii) after June 15, 2013. The Company determined that the conversion option based on a trading price condition meets the definition of a derivative, and should be bifurcated from the debt host and accounted for separately. However, the fair value of this feature was determined to be de minimis at the date of issuance and the Company continues to evaluate the significance of this feature on a quarterly basis.

In the third quarter of 2011, the Company repurchased $53.0 million of par value ($46.6 million of carrying value) of its 2.625% Convertible Senior Subordinated Notes due 2026 for $56.2 million in cash. Additionally, the Company wrote off the proportionate share of debt issuance costs of $0.5 million, thus recognizing a net $5.3 million loss on the extinguishment of the debt.

The notes will mature on December 15, 2026. Beginning December 20, 2013, the Company may redeem the notes, in whole or in part, for cash at a price of 100% of the principal amount plus accrued and unpaid interest to, but excluding, the redemption date. If a holder elects to convert its notes in connection with the occurrence of specified fundamental changes that occur prior to December 15, 2013, the holder will be entitled to receive, in addition to cash and shares of common stock equal to the conversion rate, an additional number of shares of common stock, in each case as described in the Indenture. Notwithstanding these conversion rate adjustments, these notes contain an explicit limit on the number of shares issuable upon conversion. Holders may require the Company to repurchase the notes for cash on December 15 of 2013, 2016 and 2021 at a repurchase price equal to 100% of the principal amount of such notes, plus accrued and unpaid interest, to, but excluding, the repurchase date. Upon the occurrence of certain corporate events, each holder may require the Company to purchase all or a portion of such holder's notes for cash at a price equal to the principal amount of such notes, plus accrued and unpaid interest, to, but excluding, the repurchase date.

The notes, which are the Company's unsecured obligations, will be subordinated in right of payment to all of the Company's existing and future senior indebtedness, will rank pari passu in right of payment with all of the Company's existing and future senior subordinated indebtedness and will be senior in right of payment to all of the Company's existing and future subordinated obligations. The notes will also be effectively subordinated to any of the Company's or its subsidiaries' secured indebtedness to the extent of the value of the assets securing such indebtedness.

Included in other assets as of December 31, 2012, were $0.5 million of debt issuance costs associated with the 2.625% Convertible Senior Subordinated Notes due 2026, which will be amortized using the effective interest method through 2013. Included in long-term debt as of December 31, 2012 was $7.1 million of unamortized debt discount associated with the 2.625% Convertible Senior Subordinated Notes due 2026, which will be amortized using the effective interest method through 2013.

2.625% Convertible Senior Subordinated Notes, Series B

As discussed above, on September 4, 2012, the Company exchanged an additional $99.9 million of its 2.625% Convertible Senior Subordinated Notes due 2026 for $99.9 million in par value of 2.625% Convertible Senior Subordinated Notes due 2026, Series B and $2.0 million in cash. Subject to certain other terms and conditions, this exchange extended the debt maturity for the exchanged amount from December 2013 to December 2016. The notes bear interest at the rate of 2.625% per year from the date of issuance. Interest is payable on June 15 and December 15 of each year, beginning on December 15, 2012. The effective interest rate of the notes is 4.4%. The notes are fully and unconditionally guaranteed on an unsecured senior subordinated basis by certain existing domestic subsidiaries of the Company. The Company recorded exchange expenses of $0.6 million, which were capitalized as debt issuance costs and are being amortized using the effective interest method through the first put date of December 15, 2016.

On December 15, 2011, the Company exchanged $198.6 million of its 2.625% Convertible Senior Subordinated Notes due 2026 for $198.6 million of 2.625% Convertible Senior Subordinated Notes due 2026, Series B. The Company recorded exchange expenses of $1.4 million, which were capitalized as debt issuance costs and are being amortized using the effective interest method through the first put date of December 15, 2016. The notes bear interest at the rate of 2.625% per year from the date of issuance. Interest on the notes is payable on June 15 and December 15 of each year, beginning on June 15, 2012. The effective interest rate of the notes is 5.25%. The notes are fully and unconditionally guaranteed on an unsecured senior subordinated basis by certain existing domestic subsidiaries of the Company.

The terms and conditions of these notes are substantially similar to those of the Company's 2.625% Convertible Senior Subordinated Note due 2026, except for the following, which are specific to the 2.625% Convertible Senior Subordinated Note due 2026, Series B only: (i) holders may convert their notes on and after June 15, 2016; (ii) beginning on December 20, 2016, the Company may redeem the notes, in whole or in part, for cash at a price of 100% of the principal amount plus accrued and unpaid interest to, but excluding, the redemption date; (iii) if a holder elects to convert its notes in connection with the occurrence of specified fundamental changes that occur prior to December 15, 2016, the holder will be entitled to receive, in addition to cash and shares of common stock equal to the conversion rate, an additional number of shares of common stock, in each case as described in the Indenture; and (iv) holders may require the Company to repurchase the notes for cash on December 15 of 2016 and 2021 at a repurchase price equal to 100% of the principal amount of such notes, plus accrued and unpaid interest, to, but excluding, the repurchase date. The Company determined that the conversion option based on a trading price condition meets the definition of a derivative, and should be bifurcated from the debt host and accounted for separately. However, the fair value of this feature was determined to be de minimis at the date of issuance and the Company continues to evaluate the significance of this feature on a quarterly basis.

Included in other assets as of December 31, 2012, were $1.7 million of debt issuance costs associated with the 2.625% Convertible Senior Subordinated Notes due 2026, Series B, which will be amortized using the effective interest method through 2016. Included in long-term debt as of December 31, 2012 was $24.2 million of unamortized debt discount associated with the 2.625% Convertible Senior Subordinated Notes due 2026, Series B, which will be amortized using the effective interest method through 2016.

Capital Lease Obligations

The Company has various capital lease obligations primarily for machinery and equipment, which as of December 31, 2012 totaled $91.1 million, with interest rates ranging from 2.0% to 15.5% and maturities from the first quarter of 2013 until the fourth quarter of 2019.

Debt Guarantees

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Income Tax Expense (Benefit) [Abstract]

Income Taxes

12 Months Ended

Dec. 31, 2012

Income Taxes

Geographic sources of income (loss) before income taxes and non-controlling interest are as follows (in millions):



	Year ended December 31,
	2012			2011			2010
United States	$	(72.0	)	$	(143.9	)	$	(57.5	)
Foreign	(0.9		)	181.7			363.2
	$	(72.9	)	$	37.8		$	305.7

The provision for income taxes is as follows (in millions):



	Year ended December 31,
	2012			2011			2010
Current:
Federal	$	0.2		$	0.5		$	(0.3	)
State and local	(0.1		)	0.3			0.4
Foreign	16.4			25.0			8.4
	16.5			25.8			8.5
Deferred:
Federal	—			—			(1.2		)
Foreign	(3.1		)	(2.9		)	5.5
	(3.1		)	(2.9		)	4.3
	$	13.4		$	22.9		$	12.8

A reconciliation of the U.S. federal statutory income tax rate to the Company's effective income tax rate is as follows:



	Year ended December 31,
	2012			2011			2010
U.S. federal statutory rate	35.0		%	35.0		%	35.0		%
Increase (decrease) resulting from:
State and local taxes, net of federal tax benefit	0.1			0.7			0.1
Foreign withholding taxes	(0.3	)		0.1			—
Foreign rate differential	10.4			(588.0	)		(36.5	)
Dividend income from foreign subsidiaries	(62.7	)		146.1			15.3
Goodwill impairment	(6.8	)		—			—
Gain on SANYO Semiconductor Transaction	—			(22.5	)		—
Research and development credit monetization	—			—			(0.1	)
Change in valuation allowance (1)	(1.6	)		491.5			(8.0	)
Tax reserves	(2.3	)		0.8			(0.3	)
Return to accrual	12.3			—			—
Other	(2.5	)		(3.1	)		(1.3	)
	(18.4	)	%	60.6		%	4.2		%

(1) The change in the valuation allowance in 2012 excludes the effects of cumulative translation adjustments of approximately $92.2 million and decreases to deferred tax assets of approximately $109.8 million arising from the SANYO Transaction, which have a full valuation allowance. Additional information related to these deferred tax assets became available in 2012.

The tax effects of temporary differences in the recognition of income and expense for tax and financial reporting purposes that give rise to significant portions of the deferred tax assets, net of deferred tax liabilities as of December 31, 2012 and December 31, 2011, are as follows (in millions):



	Year ended December 31,
	2012			2011
Net operating loss and tax credit carryforwards	$	952.0		$	1,056.5
Tax-deductible goodwill	18.2			40.6
Reserves and accruals	98.8			31.7
Property, plant and equipment	147.2			360.5
Inventories	83.8			101.3
Other	116.0			28.6
Deferred tax assets and liabilities before valuation allowance	1,416.0			1,619.2
Valuation allowance	(1,420.1		)	(1,626.1		)
Net deferred tax asset (liability)	$	(4.1	)	$	(6.9	)

A valuation allowance has been recorded against the Company's deferred tax assets, with the exception of deferred tax assets at certain foreign subsidiaries, as management cannot conclude that it is more likely than not that these assets will be realized. As of December 31, 2012, the Company's deferred tax assets do not include $57.3 million of excess tax deductions from employee stock option exercises that are part of net operating loss carryforwards, which, if realized, will be accounted for as an addition to equity.

As of December 31, 2012, the Company's federal, state, and foreign net operating loss carryforwards ("NOLs") were $863.8 million, $930.6 million, and $1,410.4 million, respectively. If not utilized, these NOLs will expire in varying amounts from 2013 through 2029. Pursuant to Sections 382 and 383 of the Internal Revenue Code, the utilization of NOLs and other tax attributes may be subject to substantial limitations if certain ownership changes occur during a three-year testing period (as defined by the Internal Revenue Code). During 2006, such an ownership change occurred, limiting the use of federal NOL's to approximately $93.1 million per year.

The 2012 provision of $13.4 million included $21.7 million for income and withholding taxes of certain of the Company's foreign operations and $0.9 million of interest on existing reserves for potential liabilities in foreign taxing jurisdictions. This is partially offset by $7.8 million of additional tax benefit recorded and the reversal of $1.4 million for reserves and interest for potential liabilities in foreign taxing jurisdictions which were effectively settled or for which the statute lapsed during 2012.

The 2011 provision of $22.9 million included $19.4 million for income and withholding taxes of certain of the Company's foreign operations, $3.2 million of additional valuation allowance against certain deferred tax assets and $2.9 million of interest on existing reserves for potential liabilities in foreign taxing jurisdictions. This is partially offset by the reversal of $2.6 million for reserves and interest for potential liabilities in foreign taxing jurisdictions which were effectively settled or for which the statute lapsed during 2011.

The 2010 provision included $13.5 million for income and withholding taxes of certain of the Company's foreign operations and $2.7 million of new reserves and interest on existing reserves for potential liabilities in foreign taxing jurisdictions. This was partially offset by the reversal of $3.4 million for reserves and interest for potential liabilities in foreign taxing jurisdiction, which were effectively settled, or for which the statute lapsed during 2010.

Income taxes have not been provided on approximately $1,291.6 million of the undistributed earnings of our foreign subsidiaries over which the Company has sufficient influence to control the distribution at December 31, 2012. The Company has determined that substantially of all such earnings have been reinvested indefinitely. These earnings could become subject to either or both federal income tax and foreign withholding tax if they are remitted as dividends, if foreign earnings are loaned to any of our domestic companies, or if the Company sells its investment in certain subsidiaries. The Company estimates that repatriation of these foreign earnings would generate additional foreign withholding taxes of approximately $7.6 million, U.S. federal income taxes of approximately $54.0 million and state income taxes of approximately $4.2 million, each after net operating loss carryforwards and foreign tax credits.

The Company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2008.

The Company maintains liabilities for uncertain tax positions. These liabilities involve considerable judgment and estimation and are continuously monitored by management based on the best information available, including changes in tax regulations, the outcome of relevant court cases, and other information. The Company is currently under examination by various taxing authorities. Although the outcome of any tax audit is uncertain, the Company believes that it has adequately provided in its consolidated financial statements for any additional taxes that the Company may be required to pay as a result of such examinations. If the payment ultimately proves not to be necessary, the reversal of these tax liabilities would result in tax benefits being recognized in the period the Company determines such liabilities are no longer necessary. However, if an ultimate tax assessment exceeds the Company's estimate of tax liabilities, additional tax expense will be recorded. The impact of such adjustments could have a material impact on the Company's results of operations in future periods.

The activity for unrecognized gross tax benefits for 2012, 2011, and 2010 (in millions) is as follows:



	2012			2011			2010
Balance at beginning of year	$	18.6		$	13.4		$	17.0
Reserves acquired	—			1.3			—
Additions based on tax positions related to the current year	18.4			5.5			1.2
Additions for tax positions of prior years	(0.8		)	0.8			0.5
Reductions for tax positions of prior years	—			(1.4		)	(0.3		)
Lapse of statute	(1.2		)	(1.0		)	(5.0		)
Settlements	(0.2		)	—			—
Balance at end of year	$	34.8		$	18.6		$	13.4

Included in the December 31, 2012 balance of $34.8 million is $18.2 million related to unrecognized tax positions that, if recognized, would affect the annual effective tax rate. Of the total $34.8 million balance of unrecognized tax benefit at December 31, 2012, $1.0 million is related to tax positions for which it is reasonably possible that the total amounts could significantly change during the 12 months following December 31, 2012, as a result of expiring statutes of limitations.

The Company recognizes interest and penalties accrued in relation to unrecognized tax benefits in tax expense. The Company recognized approximately $0.2 million of expenses during the year ended December 31, 2012, and recongnized approximately $0.1 million, and $0.1 million in benefits during the years ended December 31, 2011 and 2010, respectively. The Company had approximately $3.0 million, $2.9 million, and $2.9 million of accrued interest and penalties at December 31, 2012, 2011, and 2010, respectively.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Stockholders' Equity Note [Abstract]

Earnings Per Share and Equity Earnings Per Share (Notes)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note Disclosure [Text Block]

Earnings Per Share and Equity

Earnings Per Share

Calculations of net income per common share attributable to ON Semiconductor are as follows (in millions, except per share data):



	For the years ended December 31,
	2012			2011		2010
Net income (loss) attributable to ON Semiconductor Corporation	$	(90.6	)	$	11.6	$	290.5
Basic weighted average common shares outstanding	452.6			446.7		431.0
Add: Incremental shares for:
Dilutive effect of share-based awards	—			7.6		9.3
Dilutive effect of convertible notes	—			2.9		4.1
Diluted weighted average common shares outstanding	452.6			457.2		444.4

Net income (loss) per common share attributable to ON Semiconductor Corporation:
Basic	$	(0.20	)	$	0.03	$	0.67
Diluted	$	(0.20	)	$	0.03	$	0.65

Basic income per common share is computed by dividing net income attributable to ON Semiconductor by the weighted average number of common shares outstanding during the period.

The number of incremental shares from the assumed exercise of stock options and assumed issuance of shares relating to restricted stock units is calculated by applying the treasury stock method. Share-based awards whose impact is considered to be anti-dilutive under the treasury stock method were excluded from the diluted net income per share calculation. The excluded number of anti-dilutive share-based awards were approximately 15.7 million, 11.7 million and 13.7 million for the years ended December 31, 2012, 2011 and 2010, respectively.

The dilutive impact related to the Convertible Notes is determined in accordance with the net share settlement requirements prescribed by ASC Topic 260, Earnings Per Share ("ASC 260"). Under the net share settlement calculation, the Convertible Notes are assumed to be convertible into cash up to the par value, with the excess of par value being convertible into common stock. The dilutive effect occurs when the stock price exceeds the conversion price for each of the Convertible Notes, as of the end of the period, or as described in ASC 260, for year-to-date calculations. In periods when the share price is lower than the conversion price, the impact is anti-dilutive and therefore has no impact on the Company's earnings per share calculations. See Note 8: "Long-Term Debt" for further discussion of the conversion prices and other features of the Convertible Notes.

Equity

Share Repurchase Program

On July 30, 2012, the Company's Board of Directors ("Board of Directors" or "Board") conditionally authorized management of the Company to execute a share repurchase program for up to $300.0 million of the Company's common stock over the three-year period beginning with the final approval date, exclusive of any fees, commissions or other expenses, subject to the approval of a Special Committee of the Board of Directors, which was obtained on August 1, 2012. Under the share repurchase program, the Company may repurchase its common stock from time to time in privately negotiated transactions or in open market transactions, including transactions pursuant to trading plans in accordance with Rules 10b5-1 and 10b-18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or by any combination of such methods or other methods. The timing of any repurchases and the actual number of shares repurchased will depend on a variety of factors, including the Company's stock price, corporate and regulatory requirements, restrictions under the Company's debt obligations, and other market and economic conditions. The share repurchase program does not require the Company to purchase any particular amount of common stock and may be suspended or discontinued at any time. All stock repurchased is recorded as treasury stock at cost.

During the year ended December 31, 2012, the Company purchased approximately 8.8 million shares of common stock for an aggregate purchase price of approximately $55.3 million, exclusive of fees, commissions and other expenses, at a weighted average price per share of $6.26. During the year ended December 31, 2012, the Company incurred costs of approximately $0.2 million related to fees, commissions and other expenses for purchases pursuant to the share repurchase program. At December 31, 2012, approximately $244.7 million was available to repurchase common stock pursuant to the share repurchase program. None of these shares had been reissued or retired as of December 31, 2012, but may be reissued or retired by the Company at a later date.

Shares for Restricted Stock Units Tax Withholding

Shares withheld upon the vesting of restricted stock units to pay applicable employee withholding taxes are considered common stock repurchases. Upon vesting, the Company currently does not collect the applicable employee withholding taxes from employees. Instead, the Company automatically withholds, from the restricted stock units that vest, the portion of those shares with a fair market value equal to the amount of the employee withholding taxes due, which is accounted for as a repurchase of common stock. The Company then pays the applicable withholding taxes in cash. The amounts remitted in the years ended December 31, 2012 and 2011 were $9.6 million and $19.3 million, respectively, for which the Company withheld approximately 1.1 million and 2.0 million shares of common stock, respectively, that were underlying the restricted stock units that vested. None of these shares had been reissued or retired as of December 31, 2012, but may be reissued or retired by the Company at a later date.

Non-Controlling Interest

The Company operates an assembly and test operations facility in Leshan, China. This facility is owned by a joint venture company, Leshan-Phoenix Semiconductor Company Limited (“Leshan”), of which the Company owns a majority of the outstanding equity interests. The Company's investment in Leshan has been consolidated in its financial statements.

At December 31, 2011, the non-controlling interest balance was $25.3 million. This balance was increased to $29.6 million at December 31, 2012 due to the non-controlling interest's $4.3 million share of the earnings for the year ended December 31, 2012.

At December 31, 2010, the non-controlling interest balance was $22.0 million. This balance increased to $25.3 million at December 31, 2011 due to the non-controlling interest's $3.3 million share of the earnings for the year ended December 31, 2011.

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
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-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Section B
-Paragraph 7, 11A
-Chapter 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 5
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 17: http://www.xbrl.org/2003/role/presentationRef
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-Number 210
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Reference 18: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 02
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 20: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 21: http://www.xbrl.org/2003/role/presentationRef
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-Number Topic 4
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Reference 22: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 129
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

12 Months Ended

Dec. 31, 2012

Share-Based Compensation

Total share-based compensation expense related to the Company's employee stock options, restricted stock units, stock grant awards and employee stock purchase plan for the years ended December 31, 2012, 2011 and 2010 was comprised as follows (in millions):



	Year Ended December 31, 2012		Year Ended December 31, 2011		Year Ended December 31, 2010
Cost of revenues	$	3.7	$	6.3	$	14.1
Research and development	4.5		6.9		10.5
Selling and marketing	4.3		6.4		9.7
General and administrative	8.0		13.9		17.9
Restructuring	—		—		0.5
Share-based compensation expense before income taxes	20.5		33.5		52.7
Related income tax benefits (1)	—		—		—
Share-based compensation expense, net of taxes	$	20.5	$	33.5	$	52.7

____________________


(1)	Most of the Company’s share-based compensation relates to its domestic subsidiaries, which have historically experienced recurring net operating losses; therefore, no related tax benefits are recorded.

At December 31, 2012, total unrecognized estimated share-based compensation expense, net of estimated forfeitures, related to non-vested stock options granted prior to that date was $8.7 million, which is expected to be recognized over a weighted-average period of 2.9 years. At December 31, 2012, total unrecognized share-based compensation expense, net of estimated forfeitures, related to non-vested restricted stock units with time-based service conditions and performance-based vesting criteria granted prior to that date was $30.8 million. The total intrinsic value of stock options exercised during the year ended December 31, 2012 was $4.8 million. The Company recorded cash received from the exercise of stock options of $9.4 million and cash from the issuance of shares under the Employee Stock Purchase Plan ("ESPP") of $8.3 million and no related tax benefits during the year ended December 31, 2012. Upon option exercise, release of restricted stock units, stock grant awards, or completion of a purchase under the ESPP, the Company issues new shares of common stock.

Share-Based Compensation Information

The fair value of each option grant is estimated on the date of grant using a lattice-based option valuation model. The lattice-based model uses: (1) a constant volatility; (2) an employee exercise behavior model (based on an analysis of historical exercise behavior); and (3) the treasury yield curve to calculate the fair value of each option grant.

The weighted-average estimated fair value of employee stock options and the weighted-average assumptions used in the lattice model to calculate the weighted-average estimated fair value of employee stock options granted during the years ended December 31, 2012, 2011 and 2010 are as follows (annualized percentages):



	Year Ended December 31, 2012			Year Ended December 31, 2011			Year Ended December 31, 2010
Volatility	46.9		%	52.1		%	46.8		%
Risk-free interest rate	0.8		%	1.2		%	1.7		%
Expected term	5.0 years			4.8 years			5.0 years
Weighted-average fair value per share	$	3.01		$	3.88		$	3.11

The volatility input is developed using blended volatility. The expected term of options represents the period of time that the options are expected to be outstanding. The expected term disclosure above is computed using the lattice model's estimated fair value as an input to the Black-Scholes formula and solving for expected term. The risk-free rate is based on zero-coupon U.S. Treasury yields in effect at the date of grant with the same period as the expected term.

Share-based compensation expense recognized in the Consolidated Statement of Operations and Comprehensive Income is based on awards ultimately expected to vest. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Pre-vesting forfeitures for stock options were estimated to be approximately 11%, 11% and 12% in the years ended December 31, 2012, 2011 and 2010, respectively. Pre-vesting forfeitures for restricted stock units were estimated to be approximately 4%, 8% and 12% in the years ended December 31, 2012, 2011 and 2010, respectively.

Employee Stock Purchase Plan

The Company uses the Black-Scholes option-pricing model to calculate the fair value of shares issued under the ESPP. The weighted-average fair value of shares issued pursuant to the ESPP and the weighted-average assumptions used in the pricing model for the years ended December 31, 2012, 2011 and 2010 are as follows (annualized percentages):



Employee Stock Purchase Plan	Year Ended December 31, 2012			Year Ended December 31, 2011			Year Ended December 31, 2010
Expected life (in years)	0.25 years			0.25 years			0.25 years
Risk-free interest rate	0.07		%	0.05		%	0.14		%
Volatility	43		%	39		%	39		%
Weighted average fair value per share	$	1.75		$	2.09		$	1.71

Plan Descriptions

On February 17, 2000, the Company adopted the 2000 Stock Incentive Plan (the "2000 SIP") which provides key employees, directors and consultants with various equity-based incentives as described in the plan document. The 2000 SIP is administered by the Board of Directors or a committee thereof, which was authorized to determine, among other things, the key employees, directors or consultants who receive awards under the plan, the amount and type of award, exercise prices or performance criteria, if applicable, and vesting schedules. Through December 31, 2004, stockholders had approved amendments to the 2000 SIP which increased the number of shares of the Company's common stock reserved and available for grant to 30.5 million, plus an additional number of shares of the Company's common stock equal to 3% of the total number of outstanding shares of common stock effective automatically on January 1st of each year beginning January 1, 2005 and ending January 1, 2010. On February 17, 2010, the 2000 SIP expired and the Company ceased granting under the plan. Outstanding options and awards as of the expiration date continue to be outstanding and exercisable or subject to vesting pursuant to the underlying grant agreements.

In March 2008, the Company assumed approximately 9.4 million of employee stock options and 1.1 million of restricted stock unit awards in accordance with applicable NASDAQ listing standards under the AMIS Holdings, Inc. Amended and Restated 2000 Equity Incentive Plan, which has not been approved by the Company's stockholders, but which was approved by AMIS' stockholders. Approximately 4.9 million shares were added to the 2000 SIP as a result of the assumption of the number of shares remaining available for grant under the AMIS Holdings, Inc. Employee Stock Purchase Plan and the AMIS Holdings, Inc. Amended and Restated 2000 Equity Incentive Plan.

In October 2008, the Company assumed approximately 3.9 million of employee stock options and 0.4 million of restricted stock unit awards in accordance with applicable NASDAQ listing standards under the following plans, which have not been approved by the Company's stockholders, but which were approved by Catalyst Semiconductor, Inc. (“Catalyst”), stockholders: the Catalyst Options Amended and Restated 2003 Stock Incentive Plan, the Catalyst 2003 Director Stock Option Plan, and the Catalyst 1998 Special Equity Incentive Plan.

In January 2010, the Company assumed approximately 2.4 million of employee stock options in accordance with applicable NASDAQ listing standards under the following plans, which have not been approved by the Company's stockholders, but which were approved by California Micro Devices Corporation ("CMD") stockholders: the California Micro Devices Corporation 2004 Omnibus Incentive Compensation Plan, the California Micro Devices Corporation 1995 Non-Employee Directors' Stock Option Plan, and the California Micro Devices Corporation 1995 Employee Stock Option Plan. In addition, the Company assumed approximately 0.3 million of employee stock options in accordance with applicable NASDAQ listing standards pursuant to agreements between CMD and certain employees.

On March 23, 2010, the Company adopted the ON Semiconductor Corporation Amended and Restated Stock Incentive Plan (the "Amended and Restated SIP”), which was subsequently approved by the Company's shareholders at the annual shareholder meeting on May 18, 2010. The Amended and Restated SIP provides key employees, directors and consultants with various equity-based incentives as described in the plan document. The Amended and Restated SIP is administered by the Board of Directors or a committee thereof, which is authorized to determine, among other things, the key employees, directors or consultants who will receive awards under the plan, the amount and type of award, exercise prices or performance criteria, if applicable, and vesting schedules. On May 15, 2012, shareholders approved certain amendments to the Amended and Restated SIP to increase the number of shares of common stock subject to all awards under the Amended and Restated SIP by 33.0 million to 59.1 million, exclusive of shares of common stock subject to awards that were previously granted pursuant to the 2000 SIP that have or will become available for grant pursuant to the Amended and Restated SIP.

Generally, the options granted under the 2000 SIP and Amended and Restated SIP vest over a period of three to four years and have a term of 10 years and 7 years, respectively. Under both plans, certain outstanding options vest automatically upon a change of control, as defined in the respective plan document, provided the option holder is employed by the Company on the date of the change in control. Certain other outstanding options may also vest upon a change of control if the Board of Directors of the Company, at its discretion, provides for acceleration of the vesting of said options. Upon the termination of an option holder's employment, all unvested options will immediately terminate and vested options will generally remain exercisable for a period of 90 days after the date of termination (one year in the case of death or disability), unless otherwise specified in an option holder's employment or stock option agreement.

Generally, restricted stock units granted under the 2000 SIP and the Amended and Restated SIP vest over three to four years or based on the achievement of certain performance criteria and are payable in shares of the Company's stock upon vesting.

As of December 31, 2012, there was an aggregate of 43.7 million shares of common stock available for grant under the Amended and Restated SIP.

Stock Options

A summary of stock option transactions for all stock option plans follows (in millions except per share and term data):



	Year Ended December 31, 2012
	Number of Shares		Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2011	18.7		$	7.70
Granted	2.8		7.37
Exercised	(1.9	)	5.00
Canceled	(2.4	)	9.38
Outstanding at December 31, 2012	17.2		$	7.70	4.1	$	9.6

Exercisable at December 31, 2012	13.2		$	7.76	3.5	$	8.1

As of December 31, 2012, the Company had 16.5 million stock options vested and expected to vest outstanding with a weighted-average exercise price of $7.71.

Net stock options, after forfeitures and cancellations, granted during the years ended December 31, 2012 and December 31, 2011 represented 0.07% and 0.02% of outstanding shares as of the beginning of each such fiscal year, respectively. Total stock options granted during the years ended December 31, 2012 and December 31, 2011 represented 0.62% and 0.25% of outstanding shares as of the end of each such fiscal year, respectively.

Additional information about stock options outstanding at December 31, 2012 with exercise prices less than or above $7.05 per share, the closing price of the Company's common stock at December 31, 2012, follows (number of shares in millions):



	Exercisable			Unexercisable			Total
Exercise Prices	Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Exercise Price
Less than $7.05	6.8	$	5.86	1.8	$	6.23	8.6	$	5.94
Above $7.05	6.4	$	9.79	2.2	$	8.11	8.6	$	9.47
Total outstanding	13.2	$	7.76	4.0	$	7.27	17.2	$	7.70

Restricted Stock Units

During 2012, the Company awarded 1.2 million restricted stock units to certain officers and employees of the Company that vest upon the achievement of certain performance criteria. The number of units expected to vest is evaluated each reporting period and compensation expense is recognized for those units for which achievement of the performance criteria is considered probable.

During the year ended December 31, 2012, the Company reversed a total of approximately $5.0 million in previously recognized share-based compensation expense for certain of its performance-based restricted stock units whose performance measure attainment was deemed to be improbable. The prior expense was recognized from the grant date through December 31, 2011.

Compensation expense of $11.9 million was recognized during 2012 for all restricted stock units with time-based service conditions that were granted in 2012 and prior that are expected to vest.

A summary of the restricted stock units transactions for the year ended December 31, 2012 follows (number of shares in millions):



	Year Ended December 31, 2012
	Number of Shares		Weighted-Average Grant Date Fair Value
Nonvested shares of restricted stock units at December 31, 2011	9.6		$	7.95
Granted	4.6		7.80
Released	(4.0	)	5.53
Canceled	(1.3	)	9.32
Nonvested shares of restricted stock units at December 31, 2012	8.9		$	8.75

As of December 31, 2012, unrecognized compensation expense net of estimated forfeitures related to non-vested restricted stock units granted under the 2000 SIP and Amended and Restated SIP with time-based and performance-based conditions was $26.5 million and $4.3 million, respectively. For restricted stock units with time-based service conditions, expense is being recognized over the vesting period; for restricted stock units with performance criteria, expense is being recognized over the period during which the performance criteria is expected to be met. Unrecognized compensation cost related to awards with certain performance criteria that are not expected to be met is not included here. Total compensation expense related to both performance-based and service-based restricted stock units was $11.7 million for the year ended December 31, 2012.

Stock Grant Awards

During the year ended December 31, 2012, the Company granted 0.2 million shares of stock under stock grant awards to certain directors of the Company with immediate vesting at a weighted-average grant date fair value of $6.52 per share. Total compensation expense related to stock grant awards for the year ended December 31, 2012 was approximately $1.5 million.

Employee Stock Purchase Plan

On February 17, 2000, the Company adopted the ESPP. Subject to local legal requirements, each of the Company's eligible employees has the right to elect to have up to 10% of his or her eligible payroll applied towards the purchase of shares of the Company's common stock at a price equal to 85% of the fair market value of such shares as determined under the plan. Employees are limited to annual purchases of $25,000 under this plan. In addition, during each quarterly offering period, employees may not purchase stock exceeding the lesser of (i) 500 shares, or (ii) the number of shares equal to $6,250 divided by the fair market value of the stock on the first day of the offering period. During the year ended December 31, 2012, employees purchased approximately 1.4 million shares under the ESPP. During the years ended December 31, 2011 and 2010, employees purchased for each such year approximately 1.2 million shares under the ESPP. Through May 2009, shareholders have approved amendments to the ESPP, which have increased the number of shares of the Company's common stock issuable thereunder to 15 million shares. As of December 31, 2012, there were 2.6 million shares available for issuance under the ESPP.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
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-Name Accounting Standards Codification
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-Paragraph 1
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Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Employee Benefit Plans

12 Months Ended

Dec. 31, 2012

Employee Benefit Plans

Defined Benefit Plans

During the year ended December 31, 2012, the Company completed the withdrawal from three multi-employer pension plans in which certain of its SANYO Semiconductor Products Group subsidiaries participated. As a result of the withdrawal, approximately $214.5 million of pension benefit obligations were assumed and $83.6 million of plan assets were transferred, with the net unfunded pension obligation of $130.9 million remaining unchanged. The Company recognized expense of $10.7 million and $16.4 million during the years ended December 31, 2012 and 2011, respectively, relating to its participation in these plans through their respective withdrawal dates. The activity for these plans prior to their withdrawal dates is not included in the tables below.

During the year-ended December 31, 2012, the Company modified a defined benefit plan which resulted in a freezing of accumulated benefits and the ceased accrual of benefits from future service for all plan participants. Furthermore, the Company initiated a defined contribution plan covering employees impacted by the plan modification and contributed $7.5 million on behalf of participants in the defined contribution plan.

Benefits under all of the Company's plans are valued utilizing the projected unit credit cost method. The Company's policy is to fund its defined benefit plans in accordance with local requirements and regulations. The Company expects to contribute $27.4 million in 2013. As discussed below, the 2013 funding is primarily driven by the Company's current assessment of the economic environment and projected benefit payments of its foreign subsidiaries. The Company's measurement date for determining its defined benefit obligations for all plans is December 31 of each year.

Certain of the Company's foreign subsidiaries provide retirement plans for substantially all of their employees. Such plans conform to local practice in terms of providing minimum benefits mandated by law, collective agreements or customary practice. The weighted-average assumed rate of return on plan assets for these plans for 2013 is 2.8%. The Company's expected long-term rate of return on plan assets is updated at least annually, taking into consideration its asset allocation, historical returns on similar types of assets and the current economic environment. For estimation purposes, the Company assumes its long-term asset mix will generally be consistent with the current mix. The Company determines its discount rates using highly rated corporate bond yields and long term government bond yields.

The Company recognizes actuarial gains and losses during the fourth quarter of each year, which is the period the Company's annual pension plan actuarial valuations are prepared. For multi-employer plans defined benefit plans, amounts in the tables below are presented through the Company's withdrawal date from each respective multi-employer plan.

The following is a summary of the status of the Company's foreign defined benefit pension plans and the net periodic pension cost (dollars in millions):



	Year Ended December 31,
	2012			2011			2010
Service cost	$	7.5		$	9.4		$	3.8
Interest cost	5.3			5.2			3.1
Expected return on plan assets	(3.5		)	(4.0		)	(2.8		)
Amortization of prior service cost	0.1			2.6			1.1
Curtailment (gain) loss	(6.6		)	2.0			—
Actuarial and other (gain) loss	12.5			(3.1		)	—
Total net periodic pension cost	$	15.3		$	12.1		$	5.2
Weighted average assumptions
Discount rate	2.44		%	3.50		%	4.65		%
Expected return on plan assets	3.21		%	4.07		%	4.75		%
Rate of compensation increase	3.05		%	4.66		%	3.87		%



	December 31,
	2012			2011
Change in projected benefit obligation
Projected benefit obligation at the beginning of the year	$	176.4		$	74.8
Benefit obligation incurred through acquisition	—			87.9
Benefit obligation assumed upon withdrawal from SANYO Semiconductor multi-employer plans	214.5			—
Service cost	7.5			9.4
Interest cost	5.3			5.2
Net actuarial (gain) or loss	13.9			(7.8		)
Benefits paid by plan assets	(13.3		)	(3.2		)
Benefits paid by the Company	(11.4		)	—
Curtailment (gain) or loss	(6.6		)	2.0
Plan amendments	—			2.6
Translation (gain) or loss and other	(6.5		)	5.5
Projected benefit obligation at the end of the year	$	379.8		$	176.4
Accumulated benefit obligation at the end of the year	$	281.2		$	134.7
Change in plan assets
Fair value of plan assets at the beginning of the year	$	105.5		$	65.9
Plan assets incurred through acquisition	—			35.7
Assets assumed due to withdrawal from multi-employer plans	83.6			—
Transfer to defined contribution plan	(7.5		)	—
Actual return on plan assets	5.4			(0.7		)
Benefits paid from plan assets	(13.3		)	(3.2		)
Employer contributions	6.6			5.8
Translation and other gain or (loss)	(1.9		)	2.0
Fair value of plan assets at the end of the year	$	178.4		$	105.5
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate accumulated benefit obligation	$	248.8		$	102.2
Aggregate fair value of plan assets	$	124.8		$	49.8
Amounts recognized in the balance sheet of consist of:
Non-current assets	$	0.2		$	12.4
Current liabilities	(7.4		)	(11.4		)
Non-current liabilities	(194.2		)	(71.9		)
Funded status	$	(201.4	)	$	(70.9	)
Amounts recognized in accumulated other comprehensive income consist of:
Prior service cost	$	0.1		$	0.1
Weighted average assumptions at the end of the year
Discount rate	2.44		%	3.50		%
Rate of compensation increase	3.05		%	4.66		%

As of December 31, 2012 and 2011, respectively, the assets of the Company's foreign plans were invested 0% and 17% in equity securities, 3% and 25% in debt securities, including corporate bonds, 25% and 2% in insurance and investment contracts, 62% and 2% in cash and 10% and 54% in other investments including foreign government securities, equity securities and mutual funds. This asset allocation is based on the anticipated required funding amounts, timing of benefit payments, historical returns on similar assets and the influence of the current economic environment.

The long term rate of return on plan assets was determined using the weighted-average method, which incorporates factors that include the historical inflation, interest rate yield curve and current market conditions.

Plan Assets

The Company's overall investment strategy is to focus on wealth protection, and to leverage stable and low credit risk investments aimed at providing a positive rate of return to the plan assets. The Company has an investment mix with a wide diversification of asset types and fund strategies that are aligned with each region and foreign location's economy and market conditions. Investments in government securities, where the returns are guaranteed by the government, have been designed in order to achieve returns needed to cover certain plan liabilities. Investments in corporate bonds and foreign mutual funds are made with the expectation that these investments shall give an adequate rate of long-term returns despite periods of high volatility. Other types of investments include investments in cash deposits, money market funds and insurance contracts. As of December 31, 2012, a majority of the Company's plan assets from the receipt of transferred assets as a result of the Company's 2012 withdrawal from certain multi-employer plans, as discussed above, were held in cash and money market investments. The Company intends to invest certain of these holdings in a broader mix of assets during 2013, and the Company's bases expected future returns on the mix of assets following re-investment.

The fair value measurement of plan assets in the Company's foreign pension plans as of December 31, 2012 and 2011, was as follows (in millions):



	December 31, 2012
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset Category
Cash/Money Markets	$	111.4	$	111.4	$	—	$	—
Foreign Government Securities (1)	12.6		9.0		3.6		—
Corporate Bonds, Debentures (2)	4.4		0.4		0.7		3.3
Mutual Funds	4.6		—		4.6		—
Investment and Insurance Contracts (4)	45.4		—		0.7		44.7
	$	178.4	$	120.8	$	9.6	$	48.0

	December 31, 2011
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset Category
Cash/Money Markets	$	2.5	$	2.5	$	—	$	—
Foreign Government Securities (1)	56.1		51.5		4.6		—
Corporate Bonds, Debentures (2)	26.7		21.2		1.4		4.1
Equity Securities (3)	17.7		16.0		1.7		—
Mutual Funds	0.3		0.3		—		—
Real Estate Fund	0.1		—		0.1		—
Insurance Contracts (4)	2.1		—		1.1		1.0
	$	105.5	$	91.5	$	8.9	$	5.1


(1)	Includes investments in guaranteed returns securities.


(2)	Includes investments in government bonds and corporate bonds of developed countries, emerging market government bonds, emerging market corporate bonds and convertible bonds, of which 76% of bond securities were invested in Japan as of December 31, 2012.


(3)	Includes investments in equity securities of developed countries and emerging markets.


(4)	Includes certain investments with insurance companies' General Account which guarantees a minimum rate of return on the investment.

When available, the Company uses observable market data, including pricing on recent closed market transactions and quoted prices, which are included in Level 2. When data is unobservable, valuation methodologies using comparable market data are utilized and included in Level 3. Activity during the year ended December 31, 2012 for plan assets with fair value measurement using significant unobservable inputs (Level 3) was as follows (in millions):



	Foreign Government Securities			Corporate Bonds, Debentures			Investment and Insurance Contacts			Total
Balance at December 31, 2010	$	3.0		$	3.5		$	1.0		$	7.5
Transfers in and/or out of Level 3	(3.0		)	0.6			—			(2.4		)
Balance at December 31, 2011	$	—		$	4.1		$	1.0		$	5.1
Purchase, sales and settlements	—			(1.2		)	(0.3		)	(1.5		)
Transfers in and/or out of Level 3	—			0.4			44.0			44.4
Balance at December 31, 2012	$	—		$	3.3		$	44.7		$	48.0

The expected benefit payments for the Company's defined benefit plans by year from 2013 through 2017 and the five years thereafter are as follows (in millions):



2013	$	17.6
2014	5.8
2015	5.9
2016	6.5
2017	7.3
5 years thereafter	70.6
Total	$	113.7

The total underfunded status was $201.4 million at December 31, 2012. The Company expects to contribute $27.4 million during 2013 to its foreign defined benefit plans.

Defined Contribution Plans

The Company has a deferred compensation savings plan (the "Savings Plan") for all eligible U.S. employees established under the provisions of Section 401(k) of the Internal Revenue Code. Eligible employees may contribute a percentage of their salary subject to certain limitations. The Company has elected to have a matching contribution of 100% of the first 4% of employee contributions. The Company recognized $8.3 million, $8.7 million and $7.9 million of expense relating to matching contributions in 2012, 2011 and 2010, respectively.

Certain foreign subsidiaries have defined contribution plans in which eligible employees participate. The Company recognized compensation expense of $3.4 million, $2.0 million and $0.4 million relating to these plans for the years ended 2012, 2011 and 2010, respectively.

The entire disclosure for pension and other postretirement benefits.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

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-Name Statement of Financial Accounting Standard (FAS)
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-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Investments, All Other Investments [Abstract]

Financial Instruments

12 Months Ended

Dec. 31, 2012

Financial Instruments

Foreign Currencies

As a multinational business, the Company's transactions are denominated in a variety of currencies. When appropriate, the Company uses forward foreign currency contracts to reduce its overall exposure to the effects of currency fluctuations on its results of operations and cash flows. The Company's policy prohibits trading in currencies for which there are no underlying exposures, or entering into trades for any currency to intentionally increase the underlying exposure.

The Company primarily hedges existing assets and liabilities and cash flows associated with transactions currently on its balance sheet.

At December 31, 2012 and 2011, the Company had net outstanding foreign exchange contracts in a buy position with a net notional amount of $197.3 million and $203.4 million, respectively. Such contracts were obtained through financial institutions and were scheduled to mature within three months. Management believes that these financial instruments should not subject the Company to increased risks from foreign exchange movements because gains and losses on these contracts should offset losses and gains on the underlying assets, liabilities and transactions to which they are related. The following schedule shows the Company's net foreign exchange positions in U.S. dollars as of December 31, 2012 and 2011 (in millions):



	December 31,
	2012 Buy (Sell)			2012 Notional Amount		2011 Buy (Sell)			2011 Notional Amount
Canadian Dollar	$	—		$	—	$	(1.4	)	$	1.4
Chinese Renminbi	(7.7		)	7.7		(12.8		)	12.8
Czech Koruna	4.3			4.3		6.8			6.8
Euro	(17.4		)	17.4		(30.8		)	30.8
Indian Rupee	(2.9		)	2.9		(2.8		)	2.8
Japanese Yen	(123.3		)	123.3		(100.0		)	100.0
Korean Won	1.5			1.5		1.0			1.0
Malaysian Ringgit	32.7			32.7		29.4			29.4
Philippine Peso	4.2			4.2		5.1			5.1
Singapore Dollar	3.3			3.3		2.7			2.7
Thai Bhat	—			—		3.4			3.4
Taiwan Dollar	—			—		(7.2		)	7.2
	$	(105.3	)	$	197.3	$	(106.6	)	$	203.4

The Company is exposed to credit-related losses if counterparties to its foreign exchange contracts fail to perform their obligations. As of December 31, 2012, the counterparties to the Company's foreign exchange contracts are highly rated financial institutions and no credit-related losses are anticipated. Amounts payable or receivable under the contracts are included in other current assets or accrued expenses in the accompanying consolidated balance sheet. For the year ended December 31, 2012, realized and unrealized foreign currency transaction gains totaled $3.5 million. For the years ended 2011 and 2010, realized and unrealized foreign currency transaction losses totaled $8.9 million and $6.9 million, respectively.

Cash Flow Hedges

The Company is exposed to global market risks associated with fluctuations in interest rates and foreign currency exchange rates. The Company addresses these risks through controlled management that includes the use of derivative financial instruments to economically hedge or reduce these exposures. The Company does not enter into derivative financial instruments for trading or speculative purposes.

The purpose of the Company's foreign currency hedging activities is to protect the Company from the risk that the eventual cash flows resulting from transactions in foreign currencies will be adversely affected by changes in exchange rates. The Company enters into forward contracts that are designated as foreign-currency cash flow hedges of selected forecasted payments denominated in currencies other than U.S. dollars. All the contracts mature within 12 months and upon maturity the amount recorded in accumulated other comprehensive income is reclassified into earnings. The Company documents all relationships between designated hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking hedge transactions.

All derivatives are recognized on the balance sheet at their fair value and classified based on the instrument's maturity date. The total notional amount of outstanding derivatives designated as cash flow hedges as of December 31, 2012 was approximately $45.9 million, which is primarily comprised of cash flow hedges for Malaysian Ringgit/U.S. Dollar and Philippine Peso/U.S. Dollar currency pairs.

For the year ended December 31, 2012, the Company recorded a gain of $0.8 million recognized in other comprehensive income on derivatives associated with cash flow hedges. As of December 31, 2012, the Company had no liability balances for contracts designated as cash flow hedging instruments which were classified as other liabilities. For the year ended December 31, 2011, there was no cash flow hedging activity. As of December 31, 2012, the Company had asset balances for contracts designated as cash flow hedging instruments of $0.8 million, which were classified as other assets.

As of December 31, 2012 and December 31, 2011, the Company had balances for contracts not designated as hedging instruments of $2.4 million and $0.7 million, respectively, which were classified as other assets. As of December 31, 2012 and December 31, 2011, the Company had no liability balances and $0.1 million, respectively, for contracts not designated as hedging instruments classified as other liabilities.

Other

At December 31, 2012, the Company had no outstanding commodity derivatives, currency swaps or options relating to either its debt instruments or investments. The Company does not hedge the value of its equity investments in its subsidiaries or affiliated companies.

Fair Value Of Financial Instruments

12 Months Ended

Dec. 31, 2012

Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]

Fair Value Of Financial Instruments

Fair Value Measurements

Fair Value of Financial Instruments

The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 and December 31, 2011 (in millions):



Description	Balance as of December 31, 2012		Quoted Prices in Active Markets (Level 1)		Balance as of December 31, 2011		Quoted Prices in Active Markets (Level 1)
Assets:
Cash and cash equivalents:
Demand and time deposits	$	385.9	$	385.9	$	455.3	$	455.3
Treasuries	100.7		100.7		131.1		131.1
Commercial paper	—		—		50.9		50.9
Corporate bonds	0.3		0.3		15.6		15.6
Other Current Assets
Foreign currency exchange contracts	$	3.2	$	3.2	$	0.7	$	0.7
Liabilities:
Foreign currency exchange contracts	$	—	$	—	$	0.1	$	0.1

Short-term investments have an original maturity to the Company between three months and one year, and are classified as held-to-maturity and are carried at amortized cost as it is the intent of the Company to hold these securities until maturity. Short-term investments classified as held-to-maturity as of the years ended December 31, 2012 and 2011, respectively, were as follows (in millions):



	Balance at December 31, 2012							Balance at December 31, 2011
	Carried at Amortized Cost		Unrealized Gain/(Loss)			Fair Value		Carried at Amortized Cost		Unrealized Gain/(Loss)			Fair Value
Short-term investments-held-to-maturity:
Commercial paper	$	25.5	$	—		$	25.5	$	101.0	$	(0.1	)	$	100.9
Corporate bonds	119.3		(0.1		)	119.2		128.6		(0.1		)	128.5
Government agencies	—		—			—		19.0		—			19.0
	$	144.8	$	(0.1	)	$	144.7	$	248.6	$	(0.2	)	$	248.4

The Company’s financial assets are valued using market prices on active markets (Level 1). Level 1 instrument valuations are based on quoted prices for transactions in active exchange markets involving identical assets. Cash and cash equivalents are short-term, highly liquid investments with original or remaining maturities of three months or less when purchased. The Company's short-term investments are classified as held-to-maturity securities and are carried at amortized cost, excluding unrealized losses.

The carrying amounts of other current assets and liabilities, such as accounts receivable and accounts payable, approximate fair value based on the short-term nature of these instruments.

As of December 31, 2012, the Company held no direct investments in auction rate securities, collateralized debt obligations, structured investment vehicles or mortgage-backed securities.

Fair Value of Long-Term Debt, Including Current Portion

The carrying amounts and fair values of the Company’s long-term borrowings (excluding capital lease obligations, real estate mortgages and equipment financing) at December 31, 2012 and December 31, 2011 are as follows (in millions):



	December 31, 2012				December 31, 2011
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-term debt, including current portion
Convertible Notes	$	473.1	$	530.9	$	567.1	$	683.9
Long-term debt	$	403.9	$	380.6	$	496.6	$	462.0

The fair value of the Convertible Notes was estimated based on market prices on active markets (Level 1).The fair value of other long-term debt was estimated based on discounting the remaining principal payments using current market rates for similar debt and consideration of credit and default risk (Level 3) at December 31, 2012 and December 31, 2011.

Fair Values Measured on a Non-Recurring Basis

Our non-financial assets, such as property, plant and equipment, goodwill and intangible assets are recorded at fair value upon acquisition and are remeasured at fair value only if an impairment charge is recognized. The Company uses unobservable inputs to the valuation methodologies that were significant to the fair value measurements, and the valuations required management judgment due to the absence of quoted market prices. We determine the fair value of our held and used assets, goodwill and intangible assets using an income or cost approach as determined reasonable. The income approach includes the application of a discounted cash flow model, which requires the use of certain estimates. See Note 3: "Goodwill and Intangible Assets" and Note 6: "Restructuring, Asset Impairment and Other, net" for a discussion of assets which were impaired, and assumptions used in the discounted cash flow model during the years ended December 31, 2012 and December 31, 2011.

The following table shows the fair value of the Company's financial assets that have been adjusted to fair value on a non-recurring basis and that had a significant impact on the Company's results of operations for the years ended December 31, 2012 and December 31, 2011 (in millions):



	Year Ended December 31, 2012							Year Ended December 31, 2011
	Carrying Amount		Adjustment			Fair Value		Carrying Amount		Adjustment			Fair Value

Property, plant and equipment (Level 2)	$	—	$	—		$	—	$	32.1	$	(24.8	)	$	7.3
Property, plant and equipment (Level 3)	237.1		(103.0		)	134.1		70.7		(61.5		)	9.2
Goodwill of impaired reporting unit (Level 3)	14.1		(14.1		)	—		—		—			—
Intangible assets (Level 3)	43.6		(35.4		)	8.2		—		—			—
	$	294.8	$	(152.5	)	$	142.3	$	102.8	$	(86.3	)	$	16.5

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13504-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies

12 Months Ended

Dec. 31, 2012

Commitments And Contingencies

Commitments and Contingencies

Leases

The following is a schedule by year of future minimum lease obligations under non-cancelable operating leases as of December 31, 2012 (in millions):



Year Ending December 31
2013	$	23.4
2014	19.1
2015	15.1
2016	13.3
2017	12.1
Thereafter	42.6
Total	$	125.6

The Company's existing leases do not contain significant restrictive provisions; however, certain leases contain renewal options and provisions for payment by the Company of real estate taxes, insurance and maintenance costs. Total rent expense associated with operating leases for 2012, 2011, and 2010 was $24.0 million, $27.7 million, and $22.2 million, respectively.

Other Contingencies

The Company’s headquarters and manufacturing facility in Phoenix, Arizona is located on property that is a “Superfund” site, a property listed on the National Priorities List and subject to clean-up activities under the Comprehensive Environmental Response, Compensation, and Liability Act. Motorola, Inc. (“Motorola”), and now Freescale Semiconductor, Inc. (“Freescale”), have been involved in the cleanup of on-site solvent contaminated soil and groundwater and off-site contaminated groundwater pursuant to consent decrees with the State of Arizona. As part of the August 4, 1999 recapitalization, Motorola retained responsibility for this contamination, and Motorola and Freescale have agreed to indemnify the Company with respect to remediation costs and other costs or liabilities related to this matter.

As part of the recapitalization, the Company was granted various manufacturing facilities, one of which was located in the Czech Republic. In regards to this site, the Company has ongoing remediation projects to respond to releases of hazardous substances that occurred prior to the recapitalization during the years that this facility was operated by government-owned entities. In each case, the remediation project consists primarily of monitoring groundwater wells located on-site and off-site with additional action plans developed to respond in the event activity levels are exceeded at each of the respective locations. The government of the Czech Republic has agreed to indemnify the Company and the respective subsidiaries, subject to specified limitations, for remediation costs associated with this historical contamination. Based upon the information available, total future remediation costs to the Company are not expected to be material.

The Company’s design center in East Greenwich, Rhode Island is located on property that has localized soil contamination. In connection with the purchase of the facility, the Company entered into a Settlement Agreement and Covenant Not To Sue with the State of Rhode Island. This agreement requires that remedial actions be undertaken and a quarterly groundwater monitoring program be initiated by the former owners of the property. Based on the information available, any costs to the Company in connection with this matter are not expected to be material.

As a result of the acquisition of AMIS, the Company is a “primary responsible party” to an environmental remediation and cleanup at AMIS’s former corporate headquarters in Santa Clara, California. Costs incurred by AMIS include implementation of the clean-up plan, operations and maintenance of remediation systems, and other project management costs. However, AMIS’s former parent company, a subsidiary of Nippon Mining, contractually agreed to indemnify AMIS and the Company for any obligation relating to environmental remediation and cleanup at this location. Based on the information available, the Company does not believe that any costs to it in connection with this matter will be material.

The Company's former manufacturing location in Aizu, Japan is located on property where soil and ground water contamination have been detected. The Company believes that the contamination originally occurred during a time when the facility was operated by a prior owner. The Company is working with local authorities to determine the appropriate remediation actions and expects remediation costs, subject to certain limitations, to be indemnified pursuant to an agreement between the Company and the prior owner or covered by insurance subject to a deductible. Based on information available, any costs to the Company in connection with this matter are not expected to be material.

In the normal course of business, the Company provides standby letters of credit or other guarantee instruments to certain parties initiated by either the Company or its subsidiaries, as required for transactions such as material purchase commitments, agreements to mitigate collection risk, leases or customs guarantees. The Company's senior revolving credit facility includes $40.0 million of availability for the issuance of letters of credit. A $0.2 million letter of credit was outstanding under the senior revolving credit facility as of December 31, 2012. The Company also had outstanding guarantees and letters of credit outside of its senior revolving credit facility totaling $5.9 million as of December 31, 2012.

As part of securing financing in the normal course of business, the Company issued guarantees related to its receivables financing, capital lease obligations and real estate mortgages, which totaled approximately $84.1 million as of December 31, 2012. The Company is also a guarantor of SCI LLC's unsecured loan with SANYO Electric, which had a balance of $302.0 million as of December 31, 2012. See Note 8: "Long-Term Debt" for further information on this loan.

Based on historical experience and information currently available, the Company believes that in the foreseeable future it will not be required to make payments under the standby letters of credit or guarantee arrangements.

Indemnification Contingencies

The Company is a party to a variety of agreements entered into in the ordinary course of business pursuant to which it may be obligated to indemnify the other parties for certain liabilities that arise out of or relate to the subject matter of the agreements. Some of the agreements entered into by the Company require it to indemnify the other party against losses due to IP infringement, property damage including environmental contamination, personal injury, failure to comply with applicable laws, the Company’s negligence or willful misconduct, or breach of representations and warranties and covenants related to such matters as title to sold assets.

The Company faces risk of exposure to warranty and product liability claims in the event that its products fail to perform as expected or such failure of its products results, or is alleged to result, in bodily injury or property damage (or both). In addition, if any of the Company’s designed products are alleged to be defective, the Company may be required to participate in their recall. Depending on the significance of any particular customer and other relevant factors, the Company may agree to provide more favorable indemnity rights to such customer for valid warranty claims.

The Company and its subsidiaries provide for indemnification of directors, officers and other persons in accordance with limited liability agreements, certificates of incorporation, by-laws, articles of association or similar organizational documents, as the case may be. The Company maintains directors’ and officers’ insurance, which should enable it to recover a portion of any future amounts paid.

In addition to the above, from time to time the Company provides standard representations and warranties to counterparties in contracts in connection with sales of its securities and the engagement of financial advisers and also provides indemnities that protect the counterparties to these contracts in the event they suffer damages as a result of a breach of such representations and warranties or in certain other circumstances relating to the sale of securities or their engagement by the Company.

While the Company’s future obligations under certain agreements may contain limitations on liability for indemnification, other agreements do not contain such limitations and under such agreements it is not possible to predict the maximum potential amount of future payments due to the conditional nature of the Company’s obligations and the unique facts and circumstances involved in each particular agreement. Historically, payments made by the Company under any of these indemnities have not had a material effect on the Company’s business, financial condition, results of operations or cash flows. Additionally, the Company does not believe that any amounts that it may be required to pay under these indemnities in the future will be material to the Company’s business, financial position, results of operations or cash flows.

Legal Matters

The Company is currently involved in a variety of legal matters that arise in the normal course of business. Based on information currently available, management does not believe that the ultimate resolution of these matters, including the matters described or referred to in the next paragraphs will have a material effect on the Company's financial condition, results of operations or cash flows. However, because of the nature and inherent uncertainties of litigation, should the outcome of these actions be unfavorable, the Company's business, consolidated financial position, results of operations or cash flows could be materially and adversely affected.

Other Matters

On December 15, 2010, a lawsuit was filed in the United States District Court for the District of Delaware (the “Court”) captioned Robert A. Lorber v. Francis P. Barton, George H. Cave, Donald A. Colvin, Curtis J. Crawford, Ph.D., Emmanuel T. Hernandez, Phillip D. Hester, Keith D. Jackson, J. Daniel McCranie, Robert Mahoney, W. John Nelson, Daryl Ostrander, Robert H. Smith, and ON Semiconductor Corporation, C.A. No. 1:10-CV-01101-GMS. The lawsuit was brought by a stockholder of ON Semiconductor and alleged generally that (1) ON Semiconductor's 2010 proxy statement contained materially false and misleading information regarding the Amended and Restated SIP in violation of the federal securities laws; (2) the Amended and Restated SIP was defective and, thus, any awards made pursuant to the Amended and Restated SIP would not be tax-deductible pursuant to Section 162(m) of the Internal Revenue Code and applicable regulations; and (3) the individual defendants (who are ON Semiconductor officers and directors) violated their state law fiduciary duties and wasted corporate assets in connection with the adoption of the Amended and Restated SIP. The Company moved to dismiss the lawsuit. On March 2, 2012, the parties entered into a stipulation of settlement (the “Settlement Stipulation”) that set forth the terms of a settlement which, if approved by the Court, would result in the dismissal of this action. In the Settlement Stipulation, the Company and the other individual defendants denied and continue to deny that they committed any of the wrongful acts alleged in this lawsuit, and maintain that they have diligently, scrupulously, and meticulously complied with their fiduciary and other legal duties. On March 2, 2012, the parties submitted for the Court's approval the Settlement Stipulation and other papers needed to effect a resolution of this lawsuit. The Court entered an order on June 15, 2012, preliminarily approving the terms of the settlement. On August 27, 2012, the Court entered a final judgment and order approving the settlement and dismissing the lawsuit with prejudice, which order was not appealed. The Company believes that this dismissal and related settlement amount will have no material effect on its consolidated financial position, results of operations, or cash flows.

In the normal course of business, the Company faces risk of exposure to warranty and product liability claims. Related to this, in November 2011, the Company (through its subsidiary SANYO Semiconductor) received a request from one of its customers to pay to the customer an amount estimated by the customer to be approximately $20.0 million in respect of costs incurred or to be incurred by the customer and its customers in remedying certain alleged failures of SANYO Semiconductor products sold to the customer prior to the Company's acquisition of SANYO Semiconductor. The Company conducted investigations and evaluations of this matter, including fact finding and assessing possible liability, available defenses, mitigating circumstances and possible third party indemnity coverage. In February 2013 SANYO Semiconductor reached a settlement with the customer. The settlement did not have a material effect on the Company's consolidated financial position, results of operations or cash flows.

On December 27, 2011, 112 former employees of the Company's subsidiary SANYO Semiconductor Thailand (“SSTH”), whose manufacturing operations were located in the Rojana Industrial Park in Ayutthaya, Thailand (“Rojana Park”), filed complaints with the Labor Region 1 Court in Lopburi Province in Thailand, seeking damages against SSTH for unfair termination under Thailand's labor laws. On January 19, 2012, three additional former employees filed similar complaints with the Labor Region 1 Court in Lopburi Province in Thailand against SSTH. On March 19, 2012, 46 additional former employees filed similar complaints with the Labor Region 1 Court in Lopburi Province in Thailand against SSTH. These cases were consolidated. All the cases are based on the widespread flooding in Thailand that occurred in the fourth quarter of 2011 and affected Rojana Park. The floods severely damaged SSTH's buildings, equipment and other property at its Rojana Park location. As a result, the Company decided to cease SSTH's operations in Thailand and SSTH asked its employees to resign. The lawsuits sought a total of approximately $25.4 million which included alleged damages for: (1) wages calculated based on the employee's last wage rate from the date of termination through the date of retirement; (2) mental anguish; (3) lost bonuses; and/or (4) other damages. In September 2012, the Company and all plaintiffs, except for one, entered into a confidential settlement agreement to settle these cases. In December 2012, the remaining plaintiff entered into a confidential settlement as well. The settlements did not have a material effect on the Company's consolidated financial position, results of operations or cash flows.

The entire disclosure for commitments and contingencies.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Supplemental Cash Flow Elements [Abstract]

Supplemental Disclosure of Cash Flow Information

12 Months Ended

Dec. 31, 2012

Supplemental Disclosure of Cash Flow Information

Supplemental Disclosures

Supplemental Disclosure of Cash Flow Information

The Company's non-cash financing activities and cash payments for interest and income taxes during the years ended December 31, 2012, 2011 and 2010 are as follows (in millions):



	Year ended December 31,
	2012			2011			2010
Non-cash financing activities:
Capital expenditures in accounts payable	$	54.4		$	58.8		$	69.2
Equipment acquired or refinanced through capital leases	31.0			24.9			69.2
Cash (received) paid for:
Interest income	$	(1.5	)	$	(1.1	)	$	(0.5	)
Interest expense	30.4			31.8			23.6
Income taxes	17.6			20.4			10.6

Supplemental Disclosure of Business Interruption Insurance Recoveries

During the year ended December 31, 2012 the Company recognized income from business interruption insurance proceeds of approximately $16.4 million associated with the 2011 Japan earthquake. The Company has recorded these proceeds as part of cost of revenues in its Consolidated Statement of Operations and Comprehensive Income.

Segment Information

12 Months Ended

Dec. 31, 2012

Segment Reporting, Measurement Disclosures [Abstract]

Segment Information

During the fourth quarter of 2012, the Company changed its organizational structure and previously-reported information has been recast to reflect the current organizational structure. The Company is organized into three operating segments, which also represent three reporting segments: Application Products Group, Standard Products Group and SANYO Semiconductor Products Group. Each of the Company's major product lines has been examined and each product line has been assigned to a segment, as illustrated in the table below, based on the Company's operating strategy. Because many products are sold into different end-markets, the total revenue reported for a segment is not indicative of actual sales in the end-market associated with that segment, but rather is the sum of the revenue from the product lines assigned to that segment. These segments represent the Company's view of the business and as such are used to evaluate the progress of major initiatives.



Application Products Group	Standard Products Group	SANYO Semiconductor Products Group
ASSPs	Bipolar Power	Power MOSFETs
Analog Automotive	Thyristor	IGBTs
Automotive Power Switching	Small Signal	Power and Signal Discretes
Automotive Mixed-Signal solutions	Zener	Intelligent Power Modules
Medical ASICs & ASSPs	Protection	Motor Driver ICs
Linear Light Sensors	Rectifier	Display Drivers
CMOS Image Sensors	Filters	ASICs
Military & Aerospace	MOSFETs	Microcontrollers
Mixed Signal ASICs	Signal & Interface	Flash Memory
Industrial ASSPs	Standard Logic	Touch Sensor
High Frequency / Timing	LDO's & VREGs	Power Supply IC
IPD	EE Memory and Programmable Analog	Audio DSP
Foundry and Manufacturing Services		Audio Tuners
Hearing Components		Image Stabilizer ICs
DC-DC Conversion
Analog Switches
AC-DC Conversion
Low Voltage Power Management
Power Switching
Tunable Capacitors

The accounting policies of the segments are the same as those described in the summary of significant accounting policies. The Company evaluates performance based on income or loss from operations before interest, nonrecurring gains and losses, foreign exchange gains and losses, income taxes, restructuring, asset impairments and other, net, goodwill impairment and certain other unallocated manufacturing and operating expenses.

The Company's wafer manufacturing facilities fabricate ICs for all business units as necessary and their operating costs are reflected in the segments' cost of revenues on the basis of product costs. Because operating segments are generally defined by the products they design and sell, they do not make sales to each other. The Company does not discretely allocate assets to its operating segments, nor does management evaluate operating segments using discrete asset information.

In addition to the operating and reporting segments mentioned above, the Company also operates global operations, sales and marketing, information systems, finance and administration groups that are led by vice presidents who report to the Chief Executive Officer. A portion of the expenses of these groups are allocated to the segments based on specific and general criteria and are included in the operating results reported below. The Company does not allocate income taxes or interest expense to its operating segments as the operating segments are principally evaluated on operating profit before interest and taxes. Additionally, restructuring, asset impairments and other, net and certain other manufacturing and operating expenses, which includes corporate research and development costs, unallocated inventory reserves and miscellaneous nonrecurring expenses, are not allocated to any segment.

Revenues, gross profit and operating income for the Company’s reportable segments for the years ended December 31, 2012, December 31, 2011 and December 31, 2010, respectively, are as follows (in millions):



	Application Products Group		Standard Products Group		SANYO Semiconductor Products Group			Total
For year ended December 31, 2012:
Revenues from external customers	$	1,019.2	$	1,104.7	$	771.0		$	2,894.9
Segment gross profit	459.2		400.9		143.1			1,003.2
Segment operating income (loss)	111.2		240.0		(91.8		)	259.4
For year ended December 31, 2011:
Revenues from external customers	$	1,145.5	$	1,236.5	$	1,060.3		$	3,442.3
Segment gross profit	549.0		435.7		79.1			1,063.8
Segment operating income (loss)	190.8		254.6		(159.4		)	286.0
For year ended December 31, 2010:
Revenues from external customers	$	1,053.2	$	1,260.2	$	—		$	2,313.4
Segment gross profit	532.0		479.8		—			1,011.8
Segment operating income	197.1		301.0		—			498.1

Depreciation and amortization expense is included in segment operating income. Reconciliations of segment gross profit and segment operating income to the financial statements are as follows (in millions):



	Year Ended
	December 31, 2012			December 31, 2011			December 31, 2010
Gross profit for reportable segments	$	1,003.2		$	1,063.8		$	1,011.8
Unallocated amounts:
Other unallocated manufacturing costs	(51.3		)	(55.0		)	(55.8		)
Gross profit	$	951.9		$	1,008.8		$	956.0
Operating income for reportable segments	$	259.4		$	286.0		$	498.1
Unallocated amounts:
Restructuring and other charges	(165.3		)	(102.7		)	(10.5		)
Goodwill and intangible impairment	(49.5		)	—			(16.1		)
Other unallocated manufacturing costs	(51.3		)	(55.0		)	(55.8		)
Other unallocated operating expenses	(9.6		)	(14.9		)	(41.5		)
Operating income (loss)	$	(16.3	)	$	113.4		$	374.2

The Company's consolidated assets are not specifically ascribed to its individual reporting segments. Rather, assets used in operations are generally shared across the Company's reporting segments. See Note 7: "Balance Sheet Information" for additional information on certain of the Company's assets.

The Company operates in various geographic locations. Sales to unaffiliated customers have little correlation with the location of manufacturers. It is, therefore, not meaningful to present operating profit by geographical location.

Revenues by geographic location including local sales made by operations within each area, based on sales billed from the respective country, are summarized as follows (in millions):



	Year Ended
	December 31, 2012		December 31, 2011		December 31, 2010
United States	$	452.0	$	524.0	$	483.2
Other Americas	15.0		36.6		12.3
United Kingdom	388.3		424.7		373.0
Belgium	0.5		3.7		0.7
China	874.2		1,053.8		762.4
Japan	401.2		494.8		59.5
Singapore	627.7		683.3		540.8
Other Asia/Pacific	136.0		221.4		81.5
	$	2,894.9	$	3,442.3	$	2,313.4

Property, plant and equipment, net by geographic location, are summarized as follows (in millions):



	December 31, 2012		December 31, 2011		December 31, 2010
United States	$	274.7	$	257.5	$	223.7
China	104.0		96.7		97.0
Europe	140.9		117.9		104.6
Malaysia	185.0		164.5		137.4
Philippines	188.8		204.0		173.8
Other Asia/Pacific	12.0		32.8		4.5
Japan	78.9		130.2		70.8
Vietnam	35.2		23.4		—
Belgium	70.7		70.0		47.8
Other Americas	13.1		12.5		4.7
	$	1,103.3	$	1,109.5	$	864.3

For the years ended December 31, 2012 and December 31, 2011, there were no individual customers, including distributors, which accounted for more than 10% of the Company’s total consolidated revenues. For the year ended December 31, 2010, one of the Company’s distributors accounted for 13% of the Company’s total consolidated revenues. Revenues from this distributor are included in the Application Products Group and Standard Products Group.

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Guarantor And Non-Guarantor Statements [Abstract]

Guarantor And Non-Guarantor Statements

12 Months Ended

Dec. 31, 2012

Guarantor And Non-Guarantor Statements

Guarantor and Non-Guarantor Statements

ON Semiconductor is the sole issuer of the 1.875% Convertible Senior Subordinated Notes due 2025, the 2.625% Convertible Senior Subordinated Notes due 2026 and the 2.625% Convertible Senior Subordinated Notes due 2026, Series B (collectively, the “Convertible Notes”). ON Semiconductor’s 100% owned domestic subsidiaries, except those domestic subsidiaries acquired through the acquisitions of AMIS, Catalyst Semiconductor, Inc., PulseCore Holdings (Cayman) Inc. (“PulseCore”), CMD, SDT, and SANYO Semiconductor (collectively, the “Guarantor Subsidiaries”), fully and unconditionally guarantee, subject to customary releases, on a joint and several basis ON Semiconductor’s obligations under the Convertible Notes. The Guarantor Subsidiaries include SCI LLC, Semiconductor Components Industries of Rhode Island, Inc., as well as other holding companies whose net assets consist primarily of investments in the joint venture in Leshan, China and equity interests in the Company’s other foreign subsidiaries. ON Semiconductor’s other remaining subsidiaries (collectively, the “Non-Guarantor Subsidiaries”) are not guarantors of the Convertible Notes. The repayment of the unsecured Convertible Notes is subordinated to the senior indebtedness of ON Semiconductor and the Guarantor Subsidiaries on the terms described in the indentures for such Convertible Notes.

The Condensed Consolidating Balance Sheets and Condensed Consolidating Statements of Cash Flows included in this footnote have been corrected to conform to the requirements of Rule 3-10 of Regulation S-X. The corrected presentation of the Condensed Consolidating Balance Sheets grosses up the intercompany balances and presents them as current and non-current intercompany receivables and payables as of December 31, 2011. In the previously issued financial statements, certain intercompany loan, capital, and dividend activity was incorrectly classified in the Condensed Consolidating Statements of Cash Flows. The presentation below corrects the classification of these amounts in the Condensed Consolidating Statements of Cash Flows for the years ended December 31, 2011 and 2010, respectively.

The Company also corrected the presentation of previously reported certain intercompany loan and dividend activity included within the unaudited interim Condensed Consolidating Statements of Cash Flows for the three, six and nine months ended March 30, 2012, June 29, 2012 and September 28, 2012, respectively. The nature of the corrections to the previously issued interim financial statements are consistent with the nature of the corrections described above.

These corrections are not considered to be material to the Company's prior period financial statements. These corrections to the presentation had no impact to the net income attributable to the Company, earnings per share or retained earnings. They did not have any impact on the total equity of the Guarantors, non-Guarantors, or Issuer entities, nor did these changes impact the non-intercompany balances. These corrections to the presentation had no impact on any liquidity measures of the Company, nor did they impact ratios based on the Company's balance sheet or income statement. They did not alter the net increase or decrease in cash for the Guarantors, non-Guarantors, Issuer, or Parent entities. The Company does not have loan covenants associated with the Convertible Notes. Please refer to the tables at the end of this note for an illustrative representation of the corrective impact on the Condensed Consolidating Balance Sheet as of December 31, 2011 and the Condensed Consolidating Statements of Cash Flows for the years ended December 31, 2011 and 2010 as well as the unaudited Condensed Consolidating Statements of Cash Flows for the three, six and nine months ended March 30, 2012, June 29, 2012 and September 28, 2012, respectively.

Condensed consolidating financial information for the issuer of the Convertible Notes, the Guarantor Subsidiaries and the Non-Guarantor Subsidiaries is as follows:

CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Cash and cash equivalents	$	—		$	212.1		$	—		$	274.8		$	—		$	486.9
Short-term investments	—			144.8			—			—			—			144.8
Receivables, net	—			45.4			—			312.4			—			357.8
Inventories	—			34.5			—			578.4			(31.2		)	581.7
Short-term intercompany receivables	—			—			3.3			17.2			(20.5		)	—
Other current assets	—			10.6			—			101.1			—			111.7
Deferred income taxes	—			2.3			—			8.2			—			10.5
Total current assets	—			449.7			3.3			1,292.1			(51.7		)	1,693.4
Property, plant and equipment, net	—			272.0			2.8			830.9			(2.4		)	1,103.3
Deferred income taxes	—			—			—			8.5			22.7			31.2
Goodwill	—			111.7			37.2			35.7			—			184.6
Intangible assets, net	—			128.2			—			154.7			(25.9		)	257.0
Long-term intercompany receivables	—			310.8			51.0			—			(361.8		)	—
Other assets	1,834.9			1,287.1			78.5			827.3			(3,968.9		)	58.9
Total assets	$	1,834.9		$	2,559.5		$	172.8		$	3,149.2		$	(4,388.0	)	$	3,328.4
Accounts payable	$	—		$	24.1		$	—		$	255.4		$	—		$	279.5
Accrued expenses	—			53.0			0.9			172.7			1.7			228.3
Income taxes payable	—			—			—			4.9			—			4.9
Accrued interest	0.5			—			—			0.1			—			0.6
Deferred income on sales to distributors	—			34.2			—			100.3			—			134.5
Deferred income taxes	—			—			—			0.1			22.8			22.9
Current portion of long-term debt	198.9			80.2			0.1			74.4			—			353.6
Short-term intercompany payables	—			20.5			—			—			(20.5		)	—
Total current liabilities	199.4			212.0			1.0			607.9			4.0			1,024.3
Long-term debt	274.1			344.1			—			40.1			—			658.3
Other long-term liabilities	—			27.5			0.3			204.4			—			232.2
Deferred income taxes	—			2.4			—			20.5			—			22.9
Long-term intercompany payables	0.3			—			—			156.0			(156.3		)	—
Total liabilities	473.8			586.0			1.3			1,028.9			(152.3		)	1,937.7
Common stock	5.1			0.3			50.9			201.6			(252.8		)	5.1
Additional paid-in capital	3,156.4			2,549.3			259.2			1,402.9			(4,211.4		)	3,156.4
Accumulated other comprehensive loss	(41.1		)	(41.0		)	—			(34.6		)	75.6			(41.1		)
Accumulated deficit	(1,292.9		)	(535.1		)	(138.6		)	550.4			123.3			(1,292.9		)
Less: treasury stock, at cost	(466.4		)	—			—			—			—			(466.4		)
Total ON Semiconductor Corporation stockholders’ equity	1,361.1			1,973.5			171.5			2,120.3			(4,265.3		)	1,361.1
Non-controlling interest in consolidated subsidiary	—			—			—			—			29.6			29.6
Total equity	1,361.1			1,973.5			171.5			2,120.3			(4,235.7		)	1,390.7
Total liabilities and equity	$	1,834.9		$	2,559.5		$	172.8		$	3,149.2		$	(4,388.0	)	$	3,328.4

CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2011 (in millions)

	Issuer			Guarantor
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Cash and cash equivalents	$	—		$	304.5		$	(0.2	)	$	348.6		$	—		$	652.9
Short-term investments	—			248.6			—			—			—			248.6
Receivables, net	—			64.7			—			392.5			—			457.2
Inventories	—			36.2			—			599.3			1.9			637.4
Short-term intercompany receivables	—			—			3.4			27.2			(30.6		)	—
Other current assets	—			7.5			—			114.1			—			121.6
Deferred income taxes	—			5.5			—			4.5			—			10.0
Total current assets	—			667.0			3.2			1,486.2			(28.7		)	2,127.7
Property, plant and equipment, net	—			255.2			2.3			854.5			(2.5		)	1,109.5
Deferred income taxes	—			—			—			34.2			—			34.2
Goodwill	—			125.7			37.3			35.7			—			198.7
Intangible assets, net	—			152.3			—			215.0			(30.1		)	337.2
Long-term intercompany receivables	—			348.8			51.1			—			(399.9		)	—
Other assets	2,036.2			1,303.5			59.1			846.9			(4,169.5		)	76.2
Total assets	$	2,036.2		$	2,852.5		$	153.0		$	3,472.5		$	(4,630.7	)	$	3,883.5
Accounts payable	$	—		$	32.8		$	0.1		$	418.9		$	—		$	451.8
Accrued expenses	—			61.0			0.8			176.3			1.7			239.8
Income taxes payable	—			(0.1		)	—			7.6			—			7.5
Accrued interest	0.6			—			—			0.1			—			0.7
Deferred income on sales to distributors	—			43.7			—			128.3			—			172.0
Deferred income taxes	—			—			—			33.6			—			33.6
Current portion of long-term debt	182.6			74.1			—			113.4			—			370.1
Short-term intercompany payables	—			30.6			—			—			(30.6		)	—
Total current liabilities	183.2			242.1			0.9			878.2			(28.9		)	1,275.5
Long-term debt	384.5			393.8			—			58.6			—			836.9
Other long-term liabilities	—			26.6			0.4			233.1			—			260.1
Deferred income taxes	—			5.5			—			12.0			—			17.5
Long-term intercompany payables	0.3			—			—			194.1			(194.4		)	—
Total liabilities	568.0			668.0			1.3			1,376.0			(223.3		)	2,390.0
Common stock	5.0			0.3			50.9			146.9			(198.1		)	5.0
Additional paid-in capital	3,113.5			2,711.2			238.4			1,359.2			(4,308.8		)	3,113.5
Accumulated other comprehensive loss	(46.7		)	(46.7		)	—			(39.2		)	85.9			(46.7		)
Accumulated deficit	(1,202.3		)	(480.3		)	(137.6		)	629.6			(11.7		)	(1,202.3		)
Less: treasury stock, at cost	(401.3		)	—			—			—			—			(401.3		)
Total ON Semiconductor Corporation stockholders’ equity (deficit)	1,468.2			2,184.5			151.7			2,096.5			(4,432.7		)	1,468.2
Non-controlling interest in consolidated subsidiary	—			—			—			—			25.3			25.3
Total equity	1,468.2			2,184.5			151.7			2,096.5			(4,407.4		)	1,493.5
Total liabilities and equity	$	2,036.2		$	2,852.5		$	153.0		$	3,472.5		$	(4,630.7	)	$	3,883.5

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	732.2		$	12.9	$	3,760.9		$	(1,611.1	)	$	2,894.9
Cost of revenues	—			468.1			0.6		3,052.3			(1,578.0		)	1,943.0
Gross profit	—			264.1			12.3		708.6			(33.1		)	951.9
Operating expenses:
Research and development	—			180.3			10.3		176.9			—			367.5
Selling and marketing	—			68.2			0.8		111.9			—			180.9
General and administrative	—			5.0			0.6		155.0			—			160.6
Amortization of acquisition-related intangible assets	—			18.1			—		30.5			(4.2		)	44.4
Restructuring, asset impairments and other, net	—			3.3			0.1		161.9			—			165.3
Goodwill and intangible asset impairment	—			20.1			—		29.4			—			49.5
Total operating expenses	—			295.0			11.8		665.6			(4.2		)	968.2
Operating income (loss)	—			(30.9		)	0.5		43.0			(28.9		)	(16.3		)
Other income (expenses), net:
Interest expense	(38.0		)	(9.0		)	—		(9.1		)	—			(56.1		)
Interest income	—			0.8			—		0.7			—			1.5
Other	—			11.7			—		(5.9		)	—			5.8
Loss on debt repurchase or exchange	(7.8		)	—			—		—			—			(7.8		)
Gain on SANYO Semiconductor acquisition	—			—			—		—			—			—
Equity in earnings	(44.8		)	(25.6		)	10.0		—			60.4			—
Other income (expenses), net	(90.6		)	(22.1		)	10.0		(14.3		)	60.4			(56.6		)
Income (loss) before income taxes	(90.6		)	(53.0		)	10.5		28.7			31.5			(72.9		)
Income tax provision	—			(1.8		)	—		(11.6		)	—			(13.4		)
Net income (loss)	(90.6		)	(54.8		)	10.5		17.1			31.5			(86.3		)
Net income attributable to non-controlling interest	—			—			—		—			(4.3		)	(4.3		)
Net income (loss) attributable to ON Semiconductor Corporation	$	(90.6	)	$	(54.8	)	$	10.5	$	17.1		$	27.2		$	(90.6	)
Comprehensive income (loss) attributed to ON Semiconductor Corporation	$	(85.0	)	$	(49.2	)	$	10.5	$	21.4		$	17.3		$	(85.0	)

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2011 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	788.9		$	13.9	$	3,985.7		$	(1,346.2	)	$	3,442.3
Cost of revenues	—			531.5			0.8		3,236.4			(1,335.2		)	2,433.5
Gross profit	—			257.4			13.1		749.3			(11.0		)	1,008.8
Operating expenses:
Research and development	—			167.6			10.7		184.2			—			362.5
Selling and marketing	—			70.4			1.0		123.7			—			195.1
General and administrative	—			84.0			0.7		107.7			—			192.4
Amortization of acquisition related intangible assets	—			18.0			—		28.8			(4.1		)	42.7
Restructuring, asset impairments and other, net	—			3.4			—		99.3			—			102.7
Goodwill and intangible asset impairment	—			—			—		—			—			—
Total operating expenses	—			343.4			12.4		543.7			(4.1		)	895.4
Operating income	—			(86.0		)	0.7		205.6			(6.9		)	113.4
Other income (expenses), net:
Interest expense	(50.8		)	(8.5		)	—		(9.6		)	—			(68.9		)
Interest income	—			0.4			—		0.7			—			1.1
Other	—			(3.1		)	—		(5.8		)	—			(8.9		)
Loss on debt repurchase or exchange	(23.2		)	—			—		—			—			(23.2		)
Gain on SANYO Semiconductor acquisition	(0.1		)	24.4			—		—			—			24.3
Equity in earnings	85.7			151.6			7.7		—			(245.0		)	—
Other income (expenses), net	11.6			164.8			7.7		(14.7		)	(245.0		)	(75.6		)
Income before income taxes	11.6			78.8			8.4		190.9			(251.9		)	37.8
Income tax provision	—			1.5			—		(24.4		)	—			(22.9		)
Net income	11.6			80.3			8.4		166.5			(251.9		)	14.9
Less: Net income attributable to non-controlling interest	—			—			—		—			(3.3		)	(3.3		)
Net income attributable to ON Semiconductor Corporation	$	11.6		$	80.3		$	8.4	$	166.5		$	(255.2	)	$	11.6
Comprehensive income attributed to ON Semiconductor Corporation	$	24.0		$	92.6		$	8.4	$	178.9		$	(279.9	)	$	24.0

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2010 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	632.4		$	14.0	$	2,850.7		$	(1,183.7	)	$	2,313.4
Cost of revenues	—			495.4			1.8		2,051.6			(1,191.4		)	1,357.4
Gross profit	—			137.0			12.2		799.1			7.7			956.0
Operating Expenses:
Research and development	—			12.1			9.8		226.1			—			248.0
Selling and marketing	—			67.7			0.9		77.0			—			145.6
General and administrative	—			19.5			0.8		109.6			—			129.9
Amortization of acquisition related intangible assets	—			17.1			—		18.8			(4.2		)	31.7
Restructuring, asset impairments and other, net	—			7.1			—		3.4			—			10.5
Goodwill and intangible asset impairment	—			—			—		16.1			—			16.1
Total operating expenses	—			123.5			11.5		451.0			(4.2		)	581.8
Operating income	—			13.5			0.7		348.1			11.9			374.2
Other income (expenses), net:
Interest expense	(50.8		)	(6.6		)	—		(4.0		)	—			(61.4		)
Interest income	—			0.2			—		0.3			—			0.5
Other	—			3.2			—		(10.1		)	—			(6.9		)
Loss on debt repurchase	0.1			(0.8		)	—		—			—			(0.7		)
Equity in earnings	341.2			735.3			5.5		—			(1,082.0		)	—
Other income (expenses), net	290.5			731.3			5.5		(13.8		)	(1,082.0		)	(68.5		)
Income before income taxes	290.5			744.8			6.2		334.3			(1,070.1		)	305.7
Income tax provision	—			3.7			—		(16.5		)	—			(12.8		)
Net income	290.5			748.5			6.2		317.8			(1,070.1		)	292.9
Less: Net income attributable to non-controlling interest	—			—			—		—			(2.4		)	(2.4		)
Net income attributable to ON Semiconductor Corporation	$	290.5		$	748.5		$	6.2	$	317.8		$	(1,072.5	)	$	290.5
Comprehensive income attributable to ON Semiconductor Corporation	$	296.3		$	754.2		$	6.2	$	323.6		$	(1,084.0	)	$	296.3

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	45.5		$	0.9		$	242.7		$	(13.1	)	$	276.0
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(55.0		)	(0.7		)	(200.6		)	—			(256.3		)
Proceeds from sales of property, plant and equipment	—			0.1			—			6.1			—			6.2
Deposits utilized for purchases of property, plant and equipment	—			—			—			1.4			—			1.4
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			377.6			—			—			—			377.6
Purchase of held-to-maturity securities	—			(273.8		)	—			—			—			(273.8		)
Contribution from (to) subsidiaries	167.8			(7.9		)	—			—			(159.9		)	—
Net cash provided by (used in) investing activities	167.8			41.0			(0.7		)	(181.6		)	(159.9		)	(133.4		)
Cash flows from financing activities:
Intercompany loans	—			(524.0		)	—			524.0			—			—
Intercompany loan repayments	—			562.0			—			(562.0		)	—			—
Payments from (to) parent	—			(180.9		)	—			7.9			173.0			—
Proceeds from issuance of common stock under the employee stock purchase plan	8.3			—			—			—			—			8.3
Proceeds from exercise of stock options	9.4			—			—			—			—			9.4
Payments of tax withholding for restricted shares	(9.6		)	—			—			—			—			(9.6		)
Repurchase of common stock	(55.5		)	—			—			—			—			(55.5		)
Proceeds from debt issuance	—			6.5			—			17.1			—			23.6
Payment of capital leases obligations	—			(37.4		)	—			(3.4		)	—			(40.8		)
Repayment of long-term debt	(117.8		)	(5.1		)	—			(109.6		)	—			(232.5		)
Payments made in connection with repurchase or exchange of convertible notes	(2.6		)	—			—			—			—			(2.6		)
Net cash used in financing activities	(167.8		)	(178.9		)	—			(126.0		)	173.0			(299.7		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(8.9		)	—			(8.9		)
Net (decrease) increase in cash and cash equivalents	—			(92.4		)	0.2			(73.8		)	—			(166.0		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	212.1		$	—		$	274.8		$	—		$	486.9

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2011 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	0.4		$	—		$	558.9		$	(13.8	)	$	545.5
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(69.0		)	(0.2		)	(247.2		)	—			(316.4		)
Proceeds from sale of property, plant and equipment	—			0.1			—			3.2			—			3.3
Deposits utilized for purchases of property, plant and equipment	—			—			—			0.5			—			0.5
Recovery from insurance on property, plant and equipment	—			—			—			13.3			—			13.3
Purchase of businesses, net of cash acquired	—			24.3			—			(42.2		)	—			(17.9		)
Proceeds from held-to-maturity securities	—			122.2			—			—			—			122.2
Purchase of held-to-maturity securities	—			(370.8		)	—			—			—			(370.8		)
Change in restricted cash	—			142.1			—			—			—			142.1
Contribution from subsidiaries	23.9			234.5			—			—			(258.4		)	—
Net cash provided by (used in) investing activities	23.9			83.4			(0.2		)	(272.4		)	(258.4		)	(423.7		)
Cash flows from financing activities:
Intercompany loans	—			(289.3		)	—			289.3			—			—
Intercompany loan repayments	—			182.2			—			(182.2		)	—			—
Payments to parent	—			(37.7		)	—			(234.5		)	272.2			—
Proceeds from issuance of common stock under the employee stock purchase plan	8.1			—			—			—			—			8.1
Proceeds from exercise of stock options	59.4			—			—			—			—			59.4
Payments of tax withholding for restricted shares	(19.3		)	—			—			—			—			(19.3		)
Proceeds from debt issuance	—			12.2			—			56.8			—			69.0
Payment of capital lease obligation	—			(36.4		)	—			(2.6		)	—			(39.0		)
Repayment of long-term debt	(56.2		)	(2.6		)	—			(100.7		)	—			(159.5		)
Payments made in connection with repurchase or exchange convertible notes	(15.9		)	—			—			—			—			(15.9		)
Net cash provided by (used in) financing activities	(23.9		)	(171.6		)	—			(173.9		)	272.2			(97.2		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			5.0			—			5.0
Net increase in cash and cash equivalents	—			(87.8		)	(0.2		)	117.6			—			29.6
Cash and cash equivalents, beginning of period	—			392.3			—			231.0			—			623.3
Cash and cash equivalents, end of period	$	—		$	304.5		$	(0.2	)	$	348.6		$	—		$	652.9

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2010 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	384.4		$	0.2		$	181.7		$	(14.5	)	$	551.8
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(59.6		)	(0.2		)	(129.1		)	—			(188.9		)
Proceeds from sale of property, plant and equipment	—			37.1			—			—			—			37.1
Deposits utilized for purchases of property, plant and equipment	—			—			—			(2.2		)	—			(2.2		)
Purchase of business, net of cash acquired	—			—			—			(91.0		)	—			(91.0		)
Proceeds from held-to-maturity securities	—			—			—			45.5			—			45.5
Change in restricted cash	—			(142.1		)	—			5.9			—			(136.2		)
Contribution to subsidiaries	(12.1		)	50.0			—			—			(37.9		)	—
Net cash used in investing activities	(12.1		)	(114.6		)	(0.2		)	(170.9		)	(37.9		)	(335.7		)
Cash flows from financing activities:
Intercompany loans	—			(666.9		)	—			666.9			—			—
Intercompany loan repayments	—			672.7			—			(672.7		)	—			—
Payments to parent	—			(2.4		)	—			(50.0		)	52.4			—
Proceeds from issuance of common stock under the employee stock purchase plan	7.0			—			—			—			—			7.0
Proceeds from exercise of stock options	23.3			—			—			—			—			23.3
Payments of tax withholding for restricted shares	(15.0		)	—			—			—			—			(15.0		)
Proceeds from debt issuance	—			33.0			—			119.0			—			152.0
Payment of capital lease obligation	—			(29.8		)	—			(2.5		)	—			(32.3		)
Repayment of long-term debt	(3.2		)	(170.1		)				(81.1		)	—			(254.4		)
Net cash provided by (used in) financing activities	12.1			(163.5		)	—			(20.4		)	52.4			(119.4		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			0.9			—			0.9
Net increase in cash and cash equivalents	—			106.3			—			(8.7		)	—			97.6
Cash and cash equivalents, beginning of period	—			286.0			—			239.7			—			525.7
Cash and cash equivalents, end of period	$	—		$	392.3		$	—		$	231.0		$	—		$	623.3

___________________

See also Note 15: “Commitments and Contingencies—Other Contingencies” for further discussion of the Company’s guarantees.

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE THREE MONTHS ENDED MARCH 30, 2012 UNAUDITED (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	(31.3	)	$	(0.2	)	$	99.9		$	—		$	68.4
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(11.2		)	(0.5		)	(38.7		)	—			(50.4		)
Proceeds from sales of property, plant and equipment	—			—			—			1.9			—			1.9
Deposits utilized for purchases of property, plant and equipment	—			—			—			(9.6		)	—			(9.6		)
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			99.7			—			—			—			99.7
Purchase of held-to-maturity securities	—			(163.3		)	—			—			—			(163.3		)
Contribution from subsidiaries	0.5			—			—			—			(0.5		)	—
Net cash provided by (used in) investing activities	0.5			(74.8		)	(0.5		)	(34.9		)	(0.5		)	(110.2		)
Cash flows from financing activities:
Intercompany loans	—			(23.3		)	—			23.3			—			—
Intercompany loan repayments	—			70.2			—			(70.2		)	—			—
Payments from (to) parent	—			(0.5		)	—			—			0.5			—
Proceeds from issuance of common stock under the employee stock purchase plan	—			—			—			—			—			—
Proceeds from exercise of stock options	4.8			—			—			—			—			4.8
Payments of tax withholding for restricted shares	(5.3		)	—			—			—			—			(5.3		)
Repurchase of common stock	—			—			—			—			—			—
Proceeds from debt issuance	—			—			—			2.0			—			2.0
Payment of capital leases obligations	—			(11.0		)	—			(0.4		)	—			(11.4		)
Repayment of long-term debt	—			(1.1		)	—			(14.5		)	—			(15.6		)
Payments made in connection with repurchase or exchange of convertible notes	—			—			—			—			—			—
Net cash provided by (used in) financing activities	(0.5		)	34.3			—			(59.8		)	0.5			(25.5		)
Effect of exchange rate changes on cash and cash equivalents	—			—						(5.5		)	—			(5.5		)
Net (decrease) increase in cash and cash equivalents	—			(71.8		)	(0.7		)	(0.3		)	—			(72.8		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	232.7		$	(0.9	)	$	348.3		$	—		$	580.1

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 29, 2012 UNAUDITED (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	90.9		$	0.9		$	42.3		$	(6.6	)	$	127.5
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(38.6		)	(0.7		)	(75.4		)	—			(114.7		)
Proceeds from sales of property, plant and equipment	—			—			—			1.9			—			1.9
Deposits utilized for purchases of property, plant and equipment	—			—			—			(2.5		)	—			(2.5		)
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			232.6			—			—			—			232.6
Purchase of held-to-maturity securities	—			(222.6		)	—			—			—			(222.6		)
Contribution from subsidiaries	96.9			—			—			—			(96.9		)	—
Net cash provided by (used in) investing activities	96.9			(28.6		)	(0.7		)	(64.5		)	(96.9		)	(93.8		)
Cash flows from financing activities:
Intercompany loans	—			(180.6		)	—			180.6			—			—
Intercompany loan repayments	—			188.2			—			(188.2		)	—			—
Payments from (to) parent	—			(103.5		)	—			—			103.5			—
Proceeds from issuance of common stock under the employee stock purchase plan	2.3			—			—			—			—			2.3
Proceeds from exercise of stock options	5.3			—			—			—			—			5.3
Payments of tax withholding for restricted shares	(8.3		)	—			—			—			—			(8.3		)
Repurchase of common stock	—			—			—			—			—			—
Proceeds from debt issuance	—			—			—			2.0			—			2.0
Payment of capital leases obligations	—			(19.1		)	—			(2.1		)	—			(21.2		)
Repayment of long-term debt	(96.2		)	(2.1		)	—			(48.2		)	—			(146.5		)
Payments made in connection with repurchase or exchange of convertible notes	—			—			—			—			—			—
Net cash used in financing activities	(96.9		)	(117.1		)	—			(55.9		)	103.5			(166.4		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(2.4		)	—			(2.4		)
Net (decrease) increase in cash and cash equivalents	—			(54.8		)	0.2			(80.5		)	—			(135.1		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	249.7		$	—		$	268.1		$	—		$	517.8

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 28, 2012 UNAUDITED (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	(34.1	)	$	0.9		$	179.2		$	(6.6	)	$	139.4
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(49.7		)	(0.7		)	(148.4		)	—			(198.8		)
Proceeds from sales of property, plant and equipment	—			—			—			5.1			—			5.1
Deposits utilized for purchases of property, plant and equipment	—			—			—			1.6			—			1.6
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			288.7			—			—			—			288.7
Purchase of held-to-maturity securities	—			(261.7		)	—			—			—			(261.7		)
Contribution from (to) subsidiaries	119.5			(7.9		)	—			—			(111.6		)	—
Net cash provided by (used in) investing activities	119.5			(30.6		)	(0.7		)	(130.2		)	(111.6		)	(153.6		)
Cash flows from financing activities:
Intercompany loans	—			(256.4		)	—			256.4			—			—
Intercompany loan repayments	—			323.6			—			(323.6		)	—			—
Payments from (to) parent	—			(126.1		)	—			7.9			118.2			—
Proceeds from issuance of common stock under the employee stock purchase plan	4.3			—			—			—			—			4.3
Proceeds from exercise of stock options	6.0			—			—			—			—			6.0
Payments of tax withholding for restricted shares	(8.8		)	—			—			—			—			(8.8		)
Repurchase of common stock	(22.5		)	—			—			—			—			(22.5		)
Proceeds from debt issuance	—			6.5			—			4.6			—			11.1
Payment of capital leases obligations	—			(27.8		)	—			(2.8		)	—			(30.6		)
Repayment of long-term debt	(96.2		)	(3.6		)	—			(73.5		)	—			(173.3		)
Payments made in connection with repurchase or exchange of convertible notes	(2.3		)	—			—			—			—			(2.3		)
Net cash used in financing activities	(119.5		)	(83.8		)	—			(131.0		)	118.2			(216.1		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(1.2		)	—			(1.2		)
Net (decrease) increase in cash and cash equivalents	—			(148.5		)	0.2			(83.2		)	—			(231.5		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	156.0		$	—		$	265.4		$	—		$	421.4

Please refer below for the impact of the corrections to the Condensed Consolidating Balance Sheet as of December 31, 2011 (in millions):



	Issuers		Guarantor Subsidiaries
	ON Semiconductor Corporation		SCI LLC		Other Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Total
As of December 31, 2011
Increase (decrease) in short term intercompany and current assets	$	—	$	—	$	3.4	$	27.2	$	(30.6	)	$	—
Increase (decrease) in long-term intercompany and assets	—		348.8		51.1		—		(399.9		)	—
Increase (decrease) in total assets	$	—	$	348.8	$	54.5	$	27.2	$	(430.5	)	$	—

Increase (decrease) in short-term intercompany and current liabilities	$	—	$	30.6	$	—	$	—	$	(30.6	)	$	—
Increase (decrease) in long-term intercompany and liabilities	—		318.2		54.5		27.2		(399.9		)	—
Increase (decrease) in total liabilities	$	—	$	348.8	$	54.5	$	27.2	$	(430.5	)	$	—

Increase (decrease) in equity	$	—	$	—	$	—	$	—	$	—		$	—

Please refer below for the impact of the corrections to the Condensed Consolidating Statements of Cash Flows for the years-ended December 31, 2011 and 2010, respectively (in millions):



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total
For the Year Ended December 31, 2011
Total change in net cash provided by (used in) operating activities	$	—		$	(220.7	)	$	—	$	234.5		$	(13.8	)	$	—
Total change in net cash provided by (used in) investing activities	23.9			234.5			—		—			(258.4		)	—
Total change in net cash provided by (used in) financing activities	(23.9		)	(13.8		)	—		(234.5		)	272.2			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—		$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total
For the Year Ended December 31, 2010
Total change in net cash provided by (used in) operating activities	$	—		$	(35.5	)	$	—	$	50.0		$	(14.5	)	$	—
Total change in net cash provided by (used in) investing activities	(12.1		)	50.0			—		—			(37.9		)	—
Total change in net cash provided by (used in) financing activities	12.1			(14.5		)	—		(50.0		)	52.4			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—		$	—		$	—

Please refer below for the impact of the corrections to the Condensed Consolidating Statements of Cash Flows for the three, six and nine months ended March 30, 2012, June 29, 2012 and September 28, 2012, respectively (unaudited) (in millions):



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC		Other Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Total
For the Three Months Ended March 30, 2012
Total change in net cash provided by (used in) operating activities	$	—		$	—	$	—	$	—	$	—		$	—
Total change in net cash provided by (used in) investing activities	0.5			—		—		—		(0.5		)	—
Total change in net cash provided by (used in) financing activities	(0.5		)	—		—		—		0.5			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—	$	—	$	—	$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Total
For the Six Months Ended June 29, 2012
Total change in net cash provided by (used in) operating activities	$	—		$	6.6		$	—	$	—	$	(6.6	)	$	—
Total change in net cash provided by (used in) investing activities	96.9			—			—		—		(96.9		)	—
Total change in net cash provided by (used in) financing activities	(96.9		)	(6.6		)	—		—		103.5			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—	$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total
For the Nine Months Ended September 28, 2012
Total change in net cash provided by (used in) operating activities	$	—		$	(103.5	)	$	—	$	110.1		$	(6.6	)	$	—
Total change in net cash provided by (used in) investing activities	119.5			(7.9		)	—		—			(111.6		)	—
Total change in net cash provided by (used in) financing activities	(119.5		)	111.4			—		(110.1		)	118.2			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—		$	—		$	—

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Voluntary Retirement Program at SANYO Semiconductor Subsidiaries During January 2013 the Company initiated a voluntary retirement program for employees of certain of its SANYO Semiconductor subsidiaries. Under the program, the Company intends to reduce the employment levels at these subsidiaries by approximately 500 to 600 employees. The ultimate cost of the program will depend on several factors, including the years of service and salary levels of employees that apply for early retirement under the program. Given the voluntary nature of the program, the costs associated with the program will be recorded when the retirement offer is accepted by the impacted employees. The Company estimates recording a charge ranging from $40.0 million to $50.0 million related to this program during 2013. This estimated charge excludes amounts related to the pension benefit impact that may be recognized subsequent to the employees’ retirement. The Company’s pension and related benefit plans allow for benefit payment elections by the employee and the Company’s pension liability balances reflect actuarial assumptions related to these elections. As these employees make their actual elections at retirement, the pension obligation will be determined and as a result the Company will record an adjustment to the pension liability to reflect the impact of employee elections as compared to the actuarial assumptions. Accordingly, the Company cannot reasonably estimate the related impact until the employee elections are known. Other On January 31, 2013, the Company amended and restated its seven year unsecured loan obligation with SANYO Electric. In connection with the amendment and restatement of the loan agreement, SANYO Electric assigned all of its rights under the loan agreement to Sumitomo Mitsui Banking Corporation. The amended and restated agreement is not expected to have a material effect on the Company's financial statements. See Note 8: "Long-Term Debt" for a description of the conversion and retirement of the Company's 1.875% Notes which occurred subsequent to December 31, 2012.

Supplementary Financial Information

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Supplementary Data Selected Quarterly Data

Supplementary Financial Information - Selected Quarterly Financial Data (Unaudited)

Consolidated quarterly financial information for 2012 and 2011 follows (in millions, except per share data):




	Quarter ended 2012
	March 30		June 29		September 28			December 31
Revenues	$	744.4	$	744.8	$	725.5		$	680.2
Gross Profit	245.2		258.3		238.0			210.4
Net income (loss) attributable to ON Semiconductor Corporation	28.2		6.9		12.5			(138.2		)
Diluted net income (loss) per common share attributable to ON Semiconductor Corporation	0.06		0.02		0.03			(0.31		)
	Quarter ended 2011
	April 1		July 1		September 30			December 31
Revenues	$	870.6	$	905.8	$	898.0		$	767.9
Gross Profit	242.4		266.1		261.1			239.2
Net income (loss) attributable to ON Semiconductor Corporation	35.5		34.3		(49.4		)	(8.8		)
Diluted net income (loss) per common share attributable to ON Semiconductor Corporation	0.08		0.07		(0.11		)	(0.02		)

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

Valuation and Qualifying Accounts [Abstract]

Valuation And Qualifying Accounts And Reserves

12 Months Ended

Dec. 31, 2012

Valuation And Qualifying Accounts And Reserves



Description	Balance at Beginning of Period		Charged to Costs and Expenses			Charged to Other Accounts				Deductions/Write-offs				Balance at End of Period
Allowance for doubtful accounts
Year ended December 31, 2010	$	9.3	$	(1.8	)	$	—			$	(0.2	)		$	7.3
Year ended December 31, 2011	7.3		(0.2		)	—				—				7.1
Year ended December 31, 2012	7.1		(1.9		)	—				(2.5		)		2.7

Allowance for deferred tax assets
Year ended December 31, 2010	$	550.4	$	10.4		$	—			$	—			$	560.8
Year ended December 31, 2011	560.8		170.1			895.2			(1)	—				1,626.1
Year ended December 31, 2012	1,626.1		(4.0		)	(92.2		)	(2)	(109.8		)	(3)	1,420.1

(1) Represents a charge of $895.2 million to goodwill for deferred tax assets acquired from SANYO Semiconductor on January 1, 2011.

(2) Represents the effects of cumulative translation adjustments.

(3) Represents decreases to deferred tax assets, which have a full valuation allowance arising from the SANYO Semiconductor Transaction. Additional information related to these deferred tax assets became available in 2012.

Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

New Accounting Pronouncements, Policy [Policy Text Block]

ASU No. 2011-08 - “Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment” (“ASU 2011-08”)

In September 2011, the FASB issued ASU 2011-08, which is intended to reduce the complexity and cost of performing an evaluation of impairment of goodwill. Under the 2011 guidance, an entity has the option of first assessing qualitative factors (events and circumstances) to determine whether it is more likely than not (meaning a likelihood of more than 50 percent) that the fair value of a reporting unit is less than its carrying amount. If, after considering all relevant events and circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test will be unnecessary. The amendments are effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements.

ASU No. 2011-09 - “Compensation - Retirement Benefits - Multiemployer Plans (Subtopic 715-80)” (“ASU 2011-09”)

In September 2011, the FASB issued ASU 2011-09, which requires that employers provide additional separate disclosures for multiemployer pension plans and multiemployer other postretirement benefit plans. The additional quantitative and qualitative disclosures will provide users with more detailed information about an employer's involvement in multiemployer pension plans. The amendments are effective for annual disclosures for multiemployer pension plans and multiemployer other postretirement benefit plans for fiscal years ending after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements.

ASU No. 2011-04, “Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. Generally Accepted Accounting Principles and IFRS” (“ASU 2011-04”)

ASU 2011-04 generally provides a uniform framework for fair value measurements and related disclosures between generally accepted accounting principles and international financial reporting standards (“IFRS”). Additional disclosure requirements in the update include: (1) for Level 3 fair value measurements, quantitative information about the unobservable inputs used, a description of the valuation processes used by the entity, and a qualitative discussion about the sensitivity of the measurements to changes in the unobservable inputs; (2) for an entity's use of a nonfinancial asset that is different from the asset's highest and best use, the reason for the difference; (3) for financial instruments not measured at fair value but for which disclosure of fair value is required, the fair value hierarchy level in which the fair value measurements were determined; and (4) the disclosure of all transfers between Level 1 and Level 2 of the fair value hierarchy. ASU 2011-04 is effective for interim and annual periods beginning on or after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements.

ASU No. 2011-05, “Comprehensive Income (Topic 220): Presentation of Comprehensive Income” (“ASU 2011-05”) and ASU 2011-12 “Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05” ("ASU 2011-12")

ASU 2011-05 allows an entity to present components of net income and other comprehensive income in one continuous statement, referred to as the statement of comprehensive income, or in two separate, but consecutive statements. The new guidance eliminates the current option to report other comprehensive income and its components in the statement of changes in equity. While ASU 2011-05 changes the presentation of comprehensive income, there are no changes to the components that are recognized in net income or other comprehensive income under current accounting guidance. In December 2011, the FASB issued ASU 2011-12 , which deferred certain aspects of ASU 2011-05. The new guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The adoption of this pronouncement did not have a material impact on the Company's consolidated financial statements.

Consolidation, Policy

Principles of Consolidation

Use of Estimates, Policy

Use of Estimates

Cash and Cash Equivalents, Policy

Cash and cash equivalents

Investment, Policy

Short-Term Investments

Allowance For Doubtful Accounts, Policy

Allowance for Doubtful Accounts In the normal course of business, the Company provides unsecured credit terms to its customers. Accordingly, the Company maintains an allowance for doubtful accounts for possible losses on uncollectible accounts receivable. The Company routinely analyzes accounts receivable and considers history, customer creditworthiness, facts and circumstances specific to outstanding balances, current economic trends, and payment term changes when evaluating adequacy of the allowance for doubtful accounts. For uncollectible accounts receivable, the Company records a loss against the allowance for doubtful accounts only after exhaustive efforts have been made to collect and with management's approval.

Inventory, Policy

Inventories

Property, Plant and Equipment, Policy

Property, Plant and Equipment

Business Combinations Policy

Business Combination Purchase Price Allocation

Goodwill, Policy

Goodwill

Intangible Assets, Policy

Intangible Assets

Treasury Stock, Policy

Treasury Stock

Debt, Policy

Debt Issuance Costs

Revenue Recognition, Policy

Revenue Recognition

Freight and handling costs are included in cost of revenues and are recognized as period expense during the period in which they are incurred.

Research and Development Expense, Policy

Research and Development Costs

Research and development costs are expensed as incurred.

Share-based Compensation, Option and Incentive Plans Policy

Share-Based Compensation

Income Tax, Policy

Income Taxes

Foreign Currency Transactions and Translations Policy

Foreign Currencies

Pension and Other Postretirement Plans, Policy

Defined Benefit Plans

Commitments and Contingencies, Policy

Contingencies

Fair Value of Financial Instruments, Policy

Fair Value Measurement


•	Level 1 - Quoted prices in active markets for identical assets or liabilities;


•	Level 2 - Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities;


•	Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

Goodwill And Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill by Operating Segment

The following table summarizes goodwill by relevant reportable segment as of December 31, 2012 and December 31, 2011 (in millions):



	Balance as of December 31, 2012										Balance as of December 31, 2011
	Goodwill		Accumulated Amortization			Accumulated Impairment Losses			Carrying Value		Goodwill		Accumulated Amortization			Accumulated Impairment Losses			Carrying Value
Operating Segment:
Application Products Group	$	547.4	$	(4.2	)	$	(406.0	)	$	137.2	$	547.4	$	(4.2	)	$	(406.0	)	$	137.2
Standard Products Group	76.0		(5.6		)	(23.0		)	47.4		76.0		(5.6		)	(8.9		)	61.5
SANYO Semiconductor Products Group	—		—			—			—		—		—			—			—
	$	623.4	$	(9.8	)	$	(429.0	)	$	184.6	$	623.4	$	(9.8	)	$	(414.9	)	$	198.7

Schedule Of Change In Goodwill

The following table summarizes the change in goodwill from December 31, 2010 to December 31, 2012 (in millions):



Net balance as of December 31, 2010	$	191.2
Additions due to business combination	7.5
Net balance as of December 31, 2011	198.7
Impairment charge	(14.1		)
Net balance as of December 31, 2012	$	184.6

Summary of Intangible Assets, Net

Intangible assets, net were as follows as of December 31, 2012 and December 31, 2011 (in millions):



	December 31, 2012
	Original Cost		Accumulated Amortization			Foreign Currency Translation Adjustment			Accumulated Impairment			Carrying Value		Useful Life (in Years)
Intellectual property	$	13.9	$	(8.7	)	$	—		$	(0.4	)	$	4.8	5-12
Assembled workforce	6.7		(6.7		)	—			—			—		5
Customer relationships	280.3		(91.8		)	(26.9		)	(23.0		)	138.6		5-18
Patents	43.7		(16.6		)	—			(13.7		)	13.4		12
Developed technology	146.2		(51.3		)	—			(2.4		)	92.5		5-12
Trademarks	14.0		(5.2		)	—			(1.1		)	7.7		15
In-process research and development	2.5		—			—			(2.5		)	—
Backlog	0.8		(0.8		)	—			—			—		0.3
Total intangibles	$	508.1	$	(181.1	)	$	(26.9	)	$	(43.1	)	$	257.0



	December 31, 2011
	Original Cost		Accumulated Amortization			Foreign Currency Translation Adjustment			Accumulated Impairment			Carrying Value		Useful Life (in Years)
Intellectual property	$	13.9	$	(8.0	)	$	—		$	—		$	5.9	5-12
Assembled workforce	6.7		(6.7		)	—			—			—		5
Customer relationships	280.3		(71.9		)	(26.5		)	(3.2		)	178.7		5-18
Patents	43.7		(10.4		)	—			—			33.3		12
Developed technology	145.6		(35.5		)	—			(2.0		)	108.1		5-12
Trademarks	14.0		(3.4		)	—			—			10.6		15
In-process research and development	3.1		—			—			(2.5		)	0.6
Backlog	$	0.8	$	(0.8	)	$	—		$	—		$	—	0.3
Total intangibles	$	508.1	$	(136.7	)	$	(26.5	)	$	(7.7	)	$	337.2

Summary of Amortization Expense

Amortization expense for intangible assets is expected to be as follows over the next five years, and thereafter (in millions):



	Total
2013	$	33.0
2014	32.6
2015	31.7
2016	30.6
2017	27.7
Thereafter	101.4
Total estimated amortization expense	$	257.0

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

Unaudited Proforma Consolidated Results Of Operations

Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012



	Proforma
	For Year Ended
	December 31, 2010
Net Revenues	$	3,848.2
Net Income	$	104.1
Net income per common share—Basic	$	0.24
Net income per common share—Diluted	$	0.23

Acquisition of SANYO Semiconductor Co., LTD

Acquisition of the CMOS Image Sensor Business Unit from Cypress Semiconductor

The following table presents the fair values of the net assets of SANYO Semiconductor as acquired (in millions):



	Fair Value
Cash and cash equivalents	$	117.1
Receivables, net	242.1
Inventories	400.3
Deferred income taxes current	0.5
Other current assets	119.2
Property, plant and equipment	146.7
Deferred income taxes, non-current	60.5
Intangible assets	55.7
Other non-current assets	14.9
Total assets acquired	1,157.0
Accounts payable	(300.0		)
Deferred income taxes, current	(68.8		)
Other current liabilities	(83.2		)
Deferred income taxes, non-current	(0.5		)
Long-term accrued liabilities	(200.3		)
Total liabilities assumed	(652.8		)
Net assets acquired	504.2
Gain on acquisition	(24.3		)
Purchase price	$	479.9

Acquisition Of Sound Design Technologies Ltd

The following table presents the allocation of the purchase price of the ISBU to the assets acquired and liabilities assumed on February 27, 2011 based on their fair values (in millions):



	Allocation
Cash and cash equivalents	$	1.5
Receivables, net	2.6
Inventories	9.2
Other current assets	0.4
Property, plant and equipment	1.2
Goodwill	7.5
Intangible assets	11.2
In-process research and development	11.2
Total assets acquired	44.8
Accounts payable	(5.6		)
Other current liabilities	(3.7		)
Other non-current liabilities	(1.4		)
Total liabilities assumed	(10.7		)
Net assets acquired	$	34.1

Acquisition Of California Micro Devices Corporation

The following table presents the allocation of the purchase price of SDT to the assets acquired based on their fair values (in millions):



	Allocation
Receivables, net	$	3.3
Inventories	7.8
Other current assets	1.0
Property, plant and equipment	2.7
Goodwill	5.9
Intangible assets	2.4
In-process research and development	2.8
Other non-current assets	2.0
Total assets acquired	27.9
Accounts payable	(2.2		)
Other current liabilities	(1.9		)
Total liabilities assumed	(4.1		)
Net assets acquired	$	23.8

The following table presents the allocation of the purchase price of CMD to the assets acquired based on their fair values (in millions):



	Allocation
Cash and cash equivalents	$	42.8
Receivables, net	5.0
Inventories	9.0
Other current assets	2.0
Property, plant and equipment	1.7
Goodwill	20.3
Intangible assets	21.7
In-process research and development	18.6
Other non-current assets	0.1
Total assets acquired	121.2
Accounts payable	(6.2		)
Other current liabilities	(1.6		)
Other non-current liabilities	(0.2		)
Total liabilities assumed	(8.0		)
Net assets acquired	$	113.2

Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.

Reconciliation Of "Restructuring, Asset Impairments And Other, Net" Caption On The Consolidated Statement Of Operations

Restructuring, Asset Impairments And Other, Net (Tables)

12 Months Ended

Dec. 31, 2012

Restructuring Charges [Abstract]



	Restructuring		Asset Impairments		Other			Total
Year Ended December 31, 2012
2012 global workforce reduction	$	11.2	$	—	$	—		$	11.2
SANYO Semiconductor asset impairment	—		94.4		—			94.4
Voluntary retirement program at SANYO Semiconductor	47.6		—		(11.7		)	35.9
Aizu facility closure	9.0		4.5		0.1			13.6
SANYO Semiconductor consolidation	3.6		—		—			3.6
Other (1)	2.0		4.1		0.5			6.6
Total	$	73.4	$	103.0	$	(11.1	)	$	165.3
Year Ended December 31, 2011
Thailand facility closure	$	5.7	$	24.8	$	(18.6	)	$	11.9
Aizu facility closure	6.5		61.5		2.0			70.0
SANYO Semiconductor consolidation	10.0		—		—			10.0
Japan earthquake and tsunami	—		—		4.8			4.8
Phoenix wafer manufacturing facility closure	4.3		—		—			4.3
Other (1)	1.2		—		0.5			1.7
Total	$	27.7	$	86.3	$	(11.3	)	$	102.7
Year Ended December 31, 2010
Acquisition of Sound Design Technologies	$	2.2	$	—	$	—		$	2.2
Acquisition of California Micro Devices	3.5		0.1		—			3.6
Cost basis investment write-off	—		—		3.9			3.9
Other (1)	0.3		0.1		0.4			0.8
Total	$	6.0	$	0.2	$	4.3		$	10.5

Rollforward Of Accrued Restructuring Charges

The following is a rollforward of the accrued restructuring charges from December 31, 2011 to December 31, 2012 (in millions):



	Balance as of December 31, 2011		Charges		Usage			Adjustments			Balance as of December 31, 2012

Estimated employee separation charges	$	8.9	$	67.8	$	(60.7	)	$	(0.5	)	$	15.5

Estimated costs to exit	$	8.4	$	5.6	$	(12.2	)	$	(0.2	)	$	1.6

The following is a rollforward of the accrued restructuring charges from December 31, 2010 to December 31, 2011 (in millions):



	Balance as of December 31, 2010		Charges		Usage			Adjustments			Balance as of December 31, 2011

Estimated employee separation charges	$	1.4	$	25.8	$	(18.3	)	$	—		$	8.9

Estimated costs to exit	$	9.9	$	3.3	$	(3.3	)	$	(1.5	)	$	8.4

Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2012

Balance Sheet Related Disclosures [Abstract]

Supplemental Balance Sheet Information

Balance Sheet Information



	December 31, 2012			December 31, 2011
Receivables, net:
Accounts receivable	$	360.5		$	464.3
Less: Allowance for doubtful accounts	(2.7		)	(7.1		)
	$	357.8		$	457.2
Inventories:
Raw materials	$	73.2		$	58.8
Work in process	310.9			430.8
Finished goods	197.6			147.8
	$	581.7		$	637.4
Other Current Assets: (1)
Prepaid expenses	24.3			26.9
Value added tax receivables	34.3			41.0
Other	53.1			53.7
	$	111.7		$	121.6
Property, plant and equipment, net: (2)
Land	$	67.4		$	76.6
Buildings	572.4			539.3
Machinery and equipment	1,979.4			1,943.0
Total property, plant and equipment	2,619.2			2,558.9
Less: Accumulated depreciation	(1,515.9		)	(1,449.4		)
	$	1,103.3		$	1,109.5
Accrued expenses:
Accrued payroll	$	102.9		$	125.2
Sales related reserves	64.9			45.5
Restructuring reserves	17.1			17.3
Accrued pension liability	7.4			11.4
Other	36.0			40.4
	$	228.3		$	239.8
Accumulated other comprehensive income (loss), net of tax of $0:
Foreign currency translation adjustments	$	(42.2	)	$	(46.5	)
Unrecognized prior service cost of defined benefit pension plan	(0.1		)	(0.2		)
Effects of cash flow hedges	0.8			—
Unrealized (gain) or loss on available for sale securities	0.4			—
	$	(41.1	)	$	(46.7	)


(1)	Included in other current assets are $1.0 million of fixed assets that are held-for-sale as of December 31, 2012.


(2)	Included in property, plant and equipment are $8.3 million of fixed assets that are held-for-sale as of December 31, 2012.

Warranty Reserves

The activity related to the Company's warranty reserves for 2010, 2011 and 2012 follows (in millions):



Balance as of December 31, 2009	$	3.2
Provision	0.9
Usage	(0.8		)
Balance as of December 31, 2010	3.3
Provision	4.0
Usage	(1.5		)
Balance as of December 31, 2011	5.8
Provision	8.1
Usage	(3.7		)
Balance as of December 31, 2012	$	10.2

Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Long-term Debt, Unclassified [Abstract]

Long-Term Debt

Long-term debt consists of the following (dollars in millions):



	December 31, 2012			December 31, 2011
Senior Revolving Credit Facility (up to $325.0 million)	$	—		$	—
Loan with a Japanese company due 2013 through 2018, interest payable quarterly at 2.06% and 2.33%, respectively (1)	302.0			339.8
2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)	125.5			207.9
2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)	274.2			176.6
Zero Coupon Convertible Senior Subordinated Notes due 2024 (net of discount of $0.0 and $2.0 million, respectively) (4)	—			94.2
1.875% Convertible Senior Subordinated Notes due 2025 (net of discount of $0.0 million and $6.6 million, respectively) (5)	73.4			88.4
Loan with Hong Kong bank, interest payable weekly at 1.96% and 2.04%, respectively (7)	30.0			40.0
Loans with Philippine banks due 2013 through 2015, interest payable monthly and quarterly at an average rate of 1.97% and 2.01%, respectively (9)	45.8			68.2
Loan with Chinese bank due 2014, interest payable quarterly at 3.41% and 4.44%, respectively (10)	7.0			7.0
Loans with Japanese banks due through 2013, interest payable monthly and semi-annually at an average rate of 1.58% and 1.71%, respectively (10)	0.8			3.5
Loan with Singapore bank, interest payable weekly at 1.95% and 1.97%, respectively (7)	15.0			25.0
Loan with British finance company, interest payable monthly at 1.51% and 2.42%, respectively (7)	3.3			13.1
U.S. real estate mortgages payable monthly through 2016 at an average rate of 4.86% (8)	29.8			31.6
U.S. equipment financing payable monthly through 2016 at 2.94% and 3.23%, respectively (6)	14.0			10.8
Capital lease obligations	91.1			100.9
Long-term debt, including current maturities	1,011.9			1,207.0
Less: Current maturities	(353.6		)	(370.1		)
Long-term debt	$	658.3		$	836.9

_______________________


(1)	This loan represents SCI LLC's unsecured loan with SANYO Electric, which is guaranteed by the Company.


(2)	The 2.625% Convertible Senior Subordinated Notes due 2026 may be put back to the Company at the option of the holders of the notes on December 15 of 2013, 2016 and 2021 or called at the option of the Company on or after December 20, 2013.


(3)	The 2.625% Convertible Senior Subordinated Notes due 2026, Series B may be put back to the Company at the option of the holders of the notes on December 15 of 2016 and 2021 or called at the option of the Company on or after December 20, 2016.


(4)	The Zero Coupon Convertible Senior Subordinated Notes due 2024 were repaid on April 16, 2012.


(5)	The 1.875% Convertible Senior Subordinated Notes due 2025 were partially redeemed by the Company on December 20, 2012. The balance as of December 31, 2012 represents notes submitted for conversion which is subject to a 20 consecutive trading-day observation period for settlement in January 2013.


(6)	Debt arrangement secured by equipment


(7)	Debt arrangement secured by accounts receivable


(8)	Debt arrangement secured by real estate


(9)	$7.5 million unsecured and $38.3 million secured by equipment and $10.0 million unsecured and $58.2 million secured by equipment, respectively


(10)	Unsecured debt arrangement

Annual Maturities Relating To Long-Term Debt

Annual maturities relating to the Company’s long-term debt as of December 31, 2012 are as follows (in millions):



	Annual Maturities
2013	360.7
2014	93.1
2015	71.6
2016	364.4
2017	29.1
Thereafter	124.3
Total	$	1,043.2

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Income Tax Expense (Benefit) [Abstract]

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income (Loss) Before Income Taxes And Minority Interests

Geographic sources of income (loss) before income taxes and non-controlling interest are as follows (in millions):



	Year ended December 31,
	2012			2011			2010
United States	$	(72.0	)	$	(143.9	)	$	(57.5	)
Foreign	(0.9		)	181.7			363.2
	$	(72.9	)	$	37.8		$	305.7

Provision (Benefit) For Income Taxes

The provision for income taxes is as follows (in millions):



	Year ended December 31,
	2012			2011			2010
Current:
Federal	$	0.2		$	0.5		$	(0.3	)
State and local	(0.1		)	0.3			0.4
Foreign	16.4			25.0			8.4
	16.5			25.8			8.5
Deferred:
Federal	—			—			(1.2		)
Foreign	(3.1		)	(2.9		)	5.5
	(3.1		)	(2.9		)	4.3
	$	13.4		$	22.9		$	12.8

Reconciliation Of The U.S. Federal Statutory Income Tax Rate

A reconciliation of the U.S. federal statutory income tax rate to the Company's effective income tax rate is as follows:



	Year ended December 31,
	2012			2011			2010
U.S. federal statutory rate	35.0		%	35.0		%	35.0		%
Increase (decrease) resulting from:
State and local taxes, net of federal tax benefit	0.1			0.7			0.1
Foreign withholding taxes	(0.3	)		0.1			—
Foreign rate differential	10.4			(588.0	)		(36.5	)
Dividend income from foreign subsidiaries	(62.7	)		146.1			15.3
Goodwill impairment	(6.8	)		—			—
Gain on SANYO Semiconductor Transaction	—			(22.5	)		—
Research and development credit monetization	—			—			(0.1	)
Change in valuation allowance (1)	(1.6	)		491.5			(8.0	)
Tax reserves	(2.3	)		0.8			(0.3	)
Return to accrual	12.3			—			—
Other	(2.5	)		(3.1	)		(1.3	)
	(18.4	)	%	60.6		%	4.2		%

Tax Effects Of Temporary Differences



	Year ended December 31,
	2012			2011
Net operating loss and tax credit carryforwards	$	952.0		$	1,056.5
Tax-deductible goodwill	18.2			40.6
Reserves and accruals	98.8			31.7
Property, plant and equipment	147.2			360.5
Inventories	83.8			101.3
Other	116.0			28.6
Deferred tax assets and liabilities before valuation allowance	1,416.0			1,619.2
Valuation allowance	(1,420.1		)	(1,626.1		)
Net deferred tax asset (liability)	$	(4.1	)	$	(6.9	)

Activity For Unrecognized Gross Tax Benefits

The activity for unrecognized gross tax benefits for 2012, 2011, and 2010 (in millions) is as follows:



	2012			2011			2010
Balance at beginning of year	$	18.6		$	13.4		$	17.0
Reserves acquired	—			1.3			—
Additions based on tax positions related to the current year	18.4			5.5			1.2
Additions for tax positions of prior years	(0.8		)	0.8			0.5
Reductions for tax positions of prior years	—			(1.4		)	(0.3		)
Lapse of statute	(1.2		)	(1.0		)	(5.0		)
Settlements	(0.2		)	—			—
Balance at end of year	$	34.8		$	18.6		$	13.4

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

Stockholders' Equity Note [Abstract]

Earnings Per Share and Equity (Tables)

12 Months Ended

Dec. 31, 2012

Income Per Share Calculations

Calculations of net income per common share attributable to ON Semiconductor are as follows (in millions, except per share data):



	For the years ended December 31,
	2012			2011		2010
Net income (loss) attributable to ON Semiconductor Corporation	$	(90.6	)	$	11.6	$	290.5
Basic weighted average common shares outstanding	452.6			446.7		431.0
Add: Incremental shares for:
Dilutive effect of share-based awards	—			7.6		9.3
Dilutive effect of convertible notes	—			2.9		4.1
Diluted weighted average common shares outstanding	452.6			457.2		444.4

Net income (loss) per common share attributable to ON Semiconductor Corporation:
Basic	$	(0.20	)	$	0.03	$	0.67
Diluted	$	(0.20	)	$	0.03	$	0.65

Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary Of Share-Based Compensation Expense



	Year Ended December 31, 2012		Year Ended December 31, 2011		Year Ended December 31, 2010
Cost of revenues	$	3.7	$	6.3	$	14.1
Research and development	4.5		6.9		10.5
Selling and marketing	4.3		6.4		9.7
General and administrative	8.0		13.9		17.9
Restructuring	—		—		0.5
Share-based compensation expense before income taxes	20.5		33.5		52.7
Related income tax benefits (1)	—		—		—
Share-based compensation expense, net of taxes	$	20.5	$	33.5	$	52.7

____________________


(1)	Most of the Company’s share-based compensation relates to its domestic subsidiaries, which have historically experienced recurring net operating losses; therefore, no related tax benefits are recorded.

Weighted-Average Assumptions Of Employee Stock Options



	Year Ended December 31, 2012			Year Ended December 31, 2011			Year Ended December 31, 2010
Volatility	46.9		%	52.1		%	46.8		%
Risk-free interest rate	0.8		%	1.2		%	1.7		%
Expected term	5.0 years			4.8 years			5.0 years
Weighted-average fair value per share	$	3.01		$	3.88		$	3.11

Weighted-Average Assumptions With Employee Stock Purchase Plan

The weighted-average fair value of shares issued pursuant to the ESPP and the weighted-average assumptions used in the pricing model for the years ended December 31, 2012, 2011 and 2010 are as follows (annualized percentages):



Employee Stock Purchase Plan	Year Ended December 31, 2012			Year Ended December 31, 2011			Year Ended December 31, 2010
Expected life (in years)	0.25 years			0.25 years			0.25 years
Risk-free interest rate	0.07		%	0.05		%	0.14		%
Volatility	43		%	39		%	39		%
Weighted average fair value per share	$	1.75		$	2.09		$	1.71

Summary Of Stock Option Plans

A summary of stock option transactions for all stock option plans follows (in millions except per share and term data):



	Year Ended December 31, 2012
	Number of Shares		Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2011	18.7		$	7.70
Granted	2.8		7.37
Exercised	(1.9	)	5.00
Canceled	(2.4	)	9.38
Outstanding at December 31, 2012	17.2		$	7.70	4.1	$	9.6

Exercisable at December 31, 2012	13.2		$	7.76	3.5	$	8.1

Additional Information On Stock Options Outstanding



	Exercisable			Unexercisable			Total
Exercise Prices	Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Exercise Price
Less than $7.05	6.8	$	5.86	1.8	$	6.23	8.6	$	5.94
Above $7.05	6.4	$	9.79	2.2	$	8.11	8.6	$	9.47
Total outstanding	13.2	$	7.76	4.0	$	7.27	17.2	$	7.70

Summary Of Restricted Stock Units Transactions

A summary of the restricted stock units transactions for the year ended December 31, 2012 follows (number of shares in millions):



	Year Ended December 31, 2012
	Number of Shares		Weighted-Average Grant Date Fair Value
Nonvested shares of restricted stock units at December 31, 2011	9.6		$	7.95
Granted	4.6		7.80
Released	(4.0	)	5.53
Canceled	(1.3	)	9.32
Nonvested shares of restricted stock units at December 31, 2012	8.9		$	8.75

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

Summary Of Net Periodic Pension Cost

The following is a summary of the status of the Company's foreign defined benefit pension plans and the net periodic pension cost (dollars in millions):



	Year Ended December 31,
	2012			2011			2010
Service cost	$	7.5		$	9.4		$	3.8
Interest cost	5.3			5.2			3.1
Expected return on plan assets	(3.5		)	(4.0		)	(2.8		)
Amortization of prior service cost	0.1			2.6			1.1
Curtailment (gain) loss	(6.6		)	2.0			—
Actuarial and other (gain) loss	12.5			(3.1		)	—
Total net periodic pension cost	$	15.3		$	12.1		$	5.2
Weighted average assumptions
Discount rate	2.44		%	3.50		%	4.65		%
Expected return on plan assets	3.21		%	4.07		%	4.75		%
Rate of compensation increase	3.05		%	4.66		%	3.87		%

Summary Of Status Of Foreign Pension Plans



	December 31,
	2012			2011
Change in projected benefit obligation
Projected benefit obligation at the beginning of the year	$	176.4		$	74.8
Benefit obligation incurred through acquisition	—			87.9
Benefit obligation assumed upon withdrawal from SANYO Semiconductor multi-employer plans	214.5			—
Service cost	7.5			9.4
Interest cost	5.3			5.2
Net actuarial (gain) or loss	13.9			(7.8		)
Benefits paid by plan assets	(13.3		)	(3.2		)
Benefits paid by the Company	(11.4		)	—
Curtailment (gain) or loss	(6.6		)	2.0
Plan amendments	—			2.6
Translation (gain) or loss and other	(6.5		)	5.5
Projected benefit obligation at the end of the year	$	379.8		$	176.4
Accumulated benefit obligation at the end of the year	$	281.2		$	134.7
Change in plan assets
Fair value of plan assets at the beginning of the year	$	105.5		$	65.9
Plan assets incurred through acquisition	—			35.7
Assets assumed due to withdrawal from multi-employer plans	83.6			—
Transfer to defined contribution plan	(7.5		)	—
Actual return on plan assets	5.4			(0.7		)
Benefits paid from plan assets	(13.3		)	(3.2		)
Employer contributions	6.6			5.8
Translation and other gain or (loss)	(1.9		)	2.0
Fair value of plan assets at the end of the year	$	178.4		$	105.5
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate accumulated benefit obligation	$	248.8		$	102.2
Aggregate fair value of plan assets	$	124.8		$	49.8
Amounts recognized in the balance sheet of consist of:
Non-current assets	$	0.2		$	12.4
Current liabilities	(7.4		)	(11.4		)
Non-current liabilities	(194.2		)	(71.9		)
Funded status	$	(201.4	)	$	(70.9	)
Amounts recognized in accumulated other comprehensive income consist of:
Prior service cost	$	0.1		$	0.1
Weighted average assumptions at the end of the year
Discount rate	2.44		%	3.50		%
Rate of compensation increase	3.05		%	4.66		%

Fair Value Measurement Of Plan Assets

The fair value measurement of plan assets in the Company's foreign pension plans as of December 31, 2012 and 2011, was as follows (in millions):



	December 31, 2012
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset Category
Cash/Money Markets	$	111.4	$	111.4	$	—	$	—
Foreign Government Securities (1)	12.6		9.0		3.6		—
Corporate Bonds, Debentures (2)	4.4		0.4		0.7		3.3
Mutual Funds	4.6		—		4.6		—
Investment and Insurance Contracts (4)	45.4		—		0.7		44.7
	$	178.4	$	120.8	$	9.6	$	48.0

	December 31, 2011
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset Category
Cash/Money Markets	$	2.5	$	2.5	$	—	$	—
Foreign Government Securities (1)	56.1		51.5		4.6		—
Corporate Bonds, Debentures (2)	26.7		21.2		1.4		4.1
Equity Securities (3)	17.7		16.0		1.7		—
Mutual Funds	0.3		0.3		—		—
Real Estate Fund	0.1		—		0.1		—
Insurance Contracts (4)	2.1		—		1.1		1.0
	$	105.5	$	91.5	$	8.9	$	5.1


(1)	Includes investments in guaranteed returns securities.


(2)	Includes investments in government bonds and corporate bonds of developed countries, emerging market government bonds, emerging market corporate bonds and convertible bonds, of which 76% of bond securities were invested in Japan as of December 31, 2012.


(3)	Includes investments in equity securities of developed countries and emerging markets.


(4)	Includes certain investments with insurance companies' General Account which guarantees a minimum rate of return on the investment.

Activity Of Plan Assets With Fair Value Measurement Using Significant Unobservable Inputs

Activity during the year ended December 31, 2012 for plan assets with fair value measurement using significant unobservable inputs (Level 3) was as follows (in millions):



	Foreign Government Securities			Corporate Bonds, Debentures			Investment and Insurance Contacts			Total
Balance at December 31, 2010	$	3.0		$	3.5		$	1.0		$	7.5
Transfers in and/or out of Level 3	(3.0		)	0.6			—			(2.4		)
Balance at December 31, 2011	$	—		$	4.1		$	1.0		$	5.1
Purchase, sales and settlements	—			(1.2		)	(0.3		)	(1.5		)
Transfers in and/or out of Level 3	—			0.4			44.0			44.4
Balance at December 31, 2012	$	—		$	3.3		$	44.7		$	48.0

Expected Benefit Payments

The expected benefit payments for the Company's defined benefit plans by year from 2013 through 2017 and the five years thereafter are as follows (in millions):



2013	$	17.6
2014	5.8
2015	5.9
2016	6.5
2017	7.3
5 years thereafter	70.6
Total	$	113.7

Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2439-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 715
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 715
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2410-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 715
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=21916443&loc=d3e4179-114921

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 4, 7, 16, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Investments, All Other Investments [Abstract]

Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Schedule Of Net Foreign Exchange Positions

The following schedule shows the Company's net foreign exchange positions in U.S. dollars as of December 31, 2012 and 2011 (in millions):



	December 31,
	2012 Buy (Sell)			2012 Notional Amount		2011 Buy (Sell)			2011 Notional Amount
Canadian Dollar	$	—		$	—	$	(1.4	)	$	1.4
Chinese Renminbi	(7.7		)	7.7		(12.8		)	12.8
Czech Koruna	4.3			4.3		6.8			6.8
Euro	(17.4		)	17.4		(30.8		)	30.8
Indian Rupee	(2.9		)	2.9		(2.8		)	2.8
Japanese Yen	(123.3		)	123.3		(100.0		)	100.0
Korean Won	1.5			1.5		1.0			1.0
Malaysian Ringgit	32.7			32.7		29.4			29.4
Philippine Peso	4.2			4.2		5.1			5.1
Singapore Dollar	3.3			3.3		2.7			2.7
Thai Bhat	—			—		3.4			3.4
Taiwan Dollar	—			—		(7.2		)	7.2
	$	(105.3	)	$	197.3	$	(106.6	)	$	203.4

Fair Value Of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]

Fair Value Of Assets And Liabilities Measured On Recurring Basis

The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 and December 31, 2011 (in millions):



Description	Balance as of December 31, 2012		Quoted Prices in Active Markets (Level 1)		Balance as of December 31, 2011		Quoted Prices in Active Markets (Level 1)
Assets:
Cash and cash equivalents:
Demand and time deposits	$	385.9	$	385.9	$	455.3	$	455.3
Treasuries	100.7		100.7		131.1		131.1
Commercial paper	—		—		50.9		50.9
Corporate bonds	0.3		0.3		15.6		15.6
Other Current Assets
Foreign currency exchange contracts	$	3.2	$	3.2	$	0.7	$	0.7
Liabilities:
Foreign currency exchange contracts	$	—	$	—	$	0.1	$	0.1

Held-to-maturity Securities

Short-term investments classified as held-to-maturity as of the years ended December 31, 2012 and 2011, respectively, were as follows (in millions):



	Balance at December 31, 2012							Balance at December 31, 2011
	Carried at Amortized Cost		Unrealized Gain/(Loss)			Fair Value		Carried at Amortized Cost		Unrealized Gain/(Loss)			Fair Value
Short-term investments-held-to-maturity:
Commercial paper	$	25.5	$	—		$	25.5	$	101.0	$	(0.1	)	$	100.9
Corporate bonds	119.3		(0.1		)	119.2		128.6		(0.1		)	128.5
Government agencies	—		—			—		19.0		—			19.0
	$	144.8	$	(0.1	)	$	144.7	$	248.6	$	(0.2	)	$	248.4

Fair Value, by Balance Sheet Grouping



	December 31, 2012				December 31, 2011
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-term debt, including current portion
Convertible Notes	$	473.1	$	530.9	$	567.1	$	683.9
Long-term debt	$	403.9	$	380.6	$	496.6	$	462.0

Fair Value Measurements, Nonrecurring



	Year Ended December 31, 2012							Year Ended December 31, 2011
	Carrying Amount		Adjustment			Fair Value		Carrying Amount		Adjustment			Fair Value

Property, plant and equipment (Level 2)	$	—	$	—		$	—	$	32.1	$	(24.8	)	$	7.3
Property, plant and equipment (Level 3)	237.1		(103.0		)	134.1		70.7		(61.5		)	9.2
Goodwill of impaired reporting unit (Level 3)	14.1		(14.1		)	—		—		—			—
Intangible assets (Level 3)	43.6		(35.4		)	8.2		—		—			—
	$	294.8	$	(152.5	)	$	142.3	$	102.8	$	(86.3	)	$	16.5

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13467-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 825
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-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 19
-Subparagraph a, b, c(1), d(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 14
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15
-Subparagraph b-d
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph c(2), d, e, f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a, c(1), c(2), c(3), d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 10
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563

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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6435544&loc=d3e41834-113960

Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5086-111524

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 137
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Operating Leases Future Minimum Payments Receivable

The following is a schedule by year of future minimum lease obligations under non-cancelable operating leases as of December 31, 2012 (in millions):



Year Ending December 31
2013	$	23.4
2014	19.1
2015	15.1
2016	13.3
2017	12.1
Thereafter	42.6
Total	$	125.6

Supplemental Disclosure of Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2012

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

The Company's non-cash financing activities and cash payments for interest and income taxes during the years ended December 31, 2012, 2011 and 2010 are as follows (in millions):



	Year ended December 31,
	2012			2011			2010
Non-cash financing activities:
Capital expenditures in accounts payable	$	54.4		$	58.8		$	69.2
Equipment acquired or refinanced through capital leases	31.0			24.9			69.2
Cash (received) paid for:
Interest income	$	(1.5	)	$	(1.1	)	$	(0.5	)
Interest expense	30.4			31.8			23.6
Income taxes	17.6			20.4			10.6

Segment Information (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting, Measurement Disclosures [Abstract]

Schedule of Segments and Product Lines



Application Products Group	Standard Products Group	SANYO Semiconductor Products Group
ASSPs	Bipolar Power	Power MOSFETs
Analog Automotive	Thyristor	IGBTs
Automotive Power Switching	Small Signal	Power and Signal Discretes
Automotive Mixed-Signal solutions	Zener	Intelligent Power Modules
Medical ASICs & ASSPs	Protection	Motor Driver ICs
Linear Light Sensors	Rectifier	Display Drivers
CMOS Image Sensors	Filters	ASICs
Military & Aerospace	MOSFETs	Microcontrollers
Mixed Signal ASICs	Signal & Interface	Flash Memory
Industrial ASSPs	Standard Logic	Touch Sensor
High Frequency / Timing	LDO's & VREGs	Power Supply IC
IPD	EE Memory and Programmable Analog	Audio DSP
Foundry and Manufacturing Services		Audio Tuners
Hearing Components		Image Stabilizer ICs
DC-DC Conversion
Analog Switches
AC-DC Conversion
Low Voltage Power Management
Power Switching
Tunable Capacitors

Segment Information Of Revenues, Gross Profit And Operating Income



	Application Products Group		Standard Products Group		SANYO Semiconductor Products Group			Total
For year ended December 31, 2012:
Revenues from external customers	$	1,019.2	$	1,104.7	$	771.0		$	2,894.9
Segment gross profit	459.2		400.9		143.1			1,003.2
Segment operating income (loss)	111.2		240.0		(91.8		)	259.4
For year ended December 31, 2011:
Revenues from external customers	$	1,145.5	$	1,236.5	$	1,060.3		$	3,442.3
Segment gross profit	549.0		435.7		79.1			1,063.8
Segment operating income (loss)	190.8		254.6		(159.4		)	286.0
For year ended December 31, 2010:
Revenues from external customers	$	1,053.2	$	1,260.2	$	—		$	2,313.4
Segment gross profit	532.0		479.8		—			1,011.8
Segment operating income	197.1		301.0		—			498.1

Reconciliation Of Operating Profit (Loss) From Segments To Consolidated



	Year Ended
	December 31, 2012			December 31, 2011			December 31, 2010
Gross profit for reportable segments	$	1,003.2		$	1,063.8		$	1,011.8
Unallocated amounts:
Other unallocated manufacturing costs	(51.3		)	(55.0		)	(55.8		)
Gross profit	$	951.9		$	1,008.8		$	956.0
Operating income for reportable segments	$	259.4		$	286.0		$	498.1
Unallocated amounts:
Restructuring and other charges	(165.3		)	(102.7		)	(10.5		)
Goodwill and intangible impairment	(49.5		)	—			(16.1		)
Other unallocated manufacturing costs	(51.3		)	(55.0		)	(55.8		)
Other unallocated operating expenses	(9.6		)	(14.9		)	(41.5		)
Operating income (loss)	$	(16.3	)	$	113.4		$	374.2

Revenues By Geographic Location Including Local Sales And Exports

Revenues by geographic location including local sales made by operations within each area, based on sales billed from the respective country, are summarized as follows (in millions):



	Year Ended
	December 31, 2012		December 31, 2011		December 31, 2010
United States	$	452.0	$	524.0	$	483.2
Other Americas	15.0		36.6		12.3
United Kingdom	388.3		424.7		373.0
Belgium	0.5		3.7		0.7
China	874.2		1,053.8		762.4
Japan	401.2		494.8		59.5
Singapore	627.7		683.3		540.8
Other Asia/Pacific	136.0		221.4		81.5
	$	2,894.9	$	3,442.3	$	2,313.4

Summary Of Property, Plant And Equipment By Geographic Location

Property, plant and equipment, net by geographic location, are summarized as follows (in millions):



	December 31, 2012		December 31, 2011		December 31, 2010
United States	$	274.7	$	257.5	$	223.7
China	104.0		96.7		97.0
Europe	140.9		117.9		104.6
Malaysia	185.0		164.5		137.4
Philippines	188.8		204.0		173.8
Other Asia/Pacific	12.0		32.8		4.5
Japan	78.9		130.2		70.8
Vietnam	35.2		23.4		—
Belgium	70.7		70.0		47.8
Other Americas	13.1		12.5		4.7
	$	1,103.3	$	1,109.5	$	864.3

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

Guarantor And Non-Guarantor Statements [Abstract]

Guarantor and Non-Guarantor Statements (Tables)

12 Months Ended

Dec. 31, 2012

Notes To Consolidated Statement Of Balance Sheet

Condensed consolidating financial information for the issuer of the Convertible Notes, the Guarantor Subsidiaries and the Non-Guarantor Subsidiaries is as follows:

CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Cash and cash equivalents	$	—		$	212.1		$	—		$	274.8		$	—		$	486.9
Short-term investments	—			144.8			—			—			—			144.8
Receivables, net	—			45.4			—			312.4			—			357.8
Inventories	—			34.5			—			578.4			(31.2		)	581.7
Short-term intercompany receivables	—			—			3.3			17.2			(20.5		)	—
Other current assets	—			10.6			—			101.1			—			111.7
Deferred income taxes	—			2.3			—			8.2			—			10.5
Total current assets	—			449.7			3.3			1,292.1			(51.7		)	1,693.4
Property, plant and equipment, net	—			272.0			2.8			830.9			(2.4		)	1,103.3
Deferred income taxes	—			—			—			8.5			22.7			31.2
Goodwill	—			111.7			37.2			35.7			—			184.6
Intangible assets, net	—			128.2			—			154.7			(25.9		)	257.0
Long-term intercompany receivables	—			310.8			51.0			—			(361.8		)	—
Other assets	1,834.9			1,287.1			78.5			827.3			(3,968.9		)	58.9
Total assets	$	1,834.9		$	2,559.5		$	172.8		$	3,149.2		$	(4,388.0	)	$	3,328.4
Accounts payable	$	—		$	24.1		$	—		$	255.4		$	—		$	279.5
Accrued expenses	—			53.0			0.9			172.7			1.7			228.3
Income taxes payable	—			—			—			4.9			—			4.9
Accrued interest	0.5			—			—			0.1			—			0.6
Deferred income on sales to distributors	—			34.2			—			100.3			—			134.5
Deferred income taxes	—			—			—			0.1			22.8			22.9
Current portion of long-term debt	198.9			80.2			0.1			74.4			—			353.6
Short-term intercompany payables	—			20.5			—			—			(20.5		)	—
Total current liabilities	199.4			212.0			1.0			607.9			4.0			1,024.3
Long-term debt	274.1			344.1			—			40.1			—			658.3
Other long-term liabilities	—			27.5			0.3			204.4			—			232.2
Deferred income taxes	—			2.4			—			20.5			—			22.9
Long-term intercompany payables	0.3			—			—			156.0			(156.3		)	—
Total liabilities	473.8			586.0			1.3			1,028.9			(152.3		)	1,937.7
Common stock	5.1			0.3			50.9			201.6			(252.8		)	5.1
Additional paid-in capital	3,156.4			2,549.3			259.2			1,402.9			(4,211.4		)	3,156.4
Accumulated other comprehensive loss	(41.1		)	(41.0		)	—			(34.6		)	75.6			(41.1		)
Accumulated deficit	(1,292.9		)	(535.1		)	(138.6		)	550.4			123.3			(1,292.9		)
Less: treasury stock, at cost	(466.4		)	—			—			—			—			(466.4		)
Total ON Semiconductor Corporation stockholders’ equity	1,361.1			1,973.5			171.5			2,120.3			(4,265.3		)	1,361.1
Non-controlling interest in consolidated subsidiary	—			—			—			—			29.6			29.6
Total equity	1,361.1			1,973.5			171.5			2,120.3			(4,235.7		)	1,390.7
Total liabilities and equity	$	1,834.9		$	2,559.5		$	172.8		$	3,149.2		$	(4,388.0	)	$	3,328.4

CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2011 (in millions)

	Issuer			Guarantor
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Cash and cash equivalents	$	—		$	304.5		$	(0.2	)	$	348.6		$	—		$	652.9
Short-term investments	—			248.6			—			—			—			248.6
Receivables, net	—			64.7			—			392.5			—			457.2
Inventories	—			36.2			—			599.3			1.9			637.4
Short-term intercompany receivables	—			—			3.4			27.2			(30.6		)	—
Other current assets	—			7.5			—			114.1			—			121.6
Deferred income taxes	—			5.5			—			4.5			—			10.0
Total current assets	—			667.0			3.2			1,486.2			(28.7		)	2,127.7
Property, plant and equipment, net	—			255.2			2.3			854.5			(2.5		)	1,109.5
Deferred income taxes	—			—			—			34.2			—			34.2
Goodwill	—			125.7			37.3			35.7			—			198.7
Intangible assets, net	—			152.3			—			215.0			(30.1		)	337.2
Long-term intercompany receivables	—			348.8			51.1			—			(399.9		)	—
Other assets	2,036.2			1,303.5			59.1			846.9			(4,169.5		)	76.2
Total assets	$	2,036.2		$	2,852.5		$	153.0		$	3,472.5		$	(4,630.7	)	$	3,883.5
Accounts payable	$	—		$	32.8		$	0.1		$	418.9		$	—		$	451.8
Accrued expenses	—			61.0			0.8			176.3			1.7			239.8
Income taxes payable	—			(0.1		)	—			7.6			—			7.5
Accrued interest	0.6			—			—			0.1			—			0.7
Deferred income on sales to distributors	—			43.7			—			128.3			—			172.0
Deferred income taxes	—			—			—			33.6			—			33.6
Current portion of long-term debt	182.6			74.1			—			113.4			—			370.1
Short-term intercompany payables	—			30.6			—			—			(30.6		)	—
Total current liabilities	183.2			242.1			0.9			878.2			(28.9		)	1,275.5
Long-term debt	384.5			393.8			—			58.6			—			836.9
Other long-term liabilities	—			26.6			0.4			233.1			—			260.1
Deferred income taxes	—			5.5			—			12.0			—			17.5
Long-term intercompany payables	0.3			—			—			194.1			(194.4		)	—
Total liabilities	568.0			668.0			1.3			1,376.0			(223.3		)	2,390.0
Common stock	5.0			0.3			50.9			146.9			(198.1		)	5.0
Additional paid-in capital	3,113.5			2,711.2			238.4			1,359.2			(4,308.8		)	3,113.5
Accumulated other comprehensive loss	(46.7		)	(46.7		)	—			(39.2		)	85.9			(46.7		)
Accumulated deficit	(1,202.3		)	(480.3		)	(137.6		)	629.6			(11.7		)	(1,202.3		)
Less: treasury stock, at cost	(401.3		)	—			—			—			—			(401.3		)
Total ON Semiconductor Corporation stockholders’ equity (deficit)	1,468.2			2,184.5			151.7			2,096.5			(4,432.7		)	1,468.2
Non-controlling interest in consolidated subsidiary	—			—			—			—			25.3			25.3
Total equity	1,468.2			2,184.5			151.7			2,096.5			(4,407.4		)	1,493.5
Total liabilities and equity	$	2,036.2		$	2,852.5		$	153.0		$	3,472.5		$	(4,630.7	)	$	3,883.5

Notes to Consolidated Statement of Operations and Comprehensive Income

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	732.2		$	12.9	$	3,760.9		$	(1,611.1	)	$	2,894.9
Cost of revenues	—			468.1			0.6		3,052.3			(1,578.0		)	1,943.0
Gross profit	—			264.1			12.3		708.6			(33.1		)	951.9
Operating expenses:
Research and development	—			180.3			10.3		176.9			—			367.5
Selling and marketing	—			68.2			0.8		111.9			—			180.9
General and administrative	—			5.0			0.6		155.0			—			160.6
Amortization of acquisition-related intangible assets	—			18.1			—		30.5			(4.2		)	44.4
Restructuring, asset impairments and other, net	—			3.3			0.1		161.9			—			165.3
Goodwill and intangible asset impairment	—			20.1			—		29.4			—			49.5
Total operating expenses	—			295.0			11.8		665.6			(4.2		)	968.2
Operating income (loss)	—			(30.9		)	0.5		43.0			(28.9		)	(16.3		)
Other income (expenses), net:
Interest expense	(38.0		)	(9.0		)	—		(9.1		)	—			(56.1		)
Interest income	—			0.8			—		0.7			—			1.5
Other	—			11.7			—		(5.9		)	—			5.8
Loss on debt repurchase or exchange	(7.8		)	—			—		—			—			(7.8		)
Gain on SANYO Semiconductor acquisition	—			—			—		—			—			—
Equity in earnings	(44.8		)	(25.6		)	10.0		—			60.4			—
Other income (expenses), net	(90.6		)	(22.1		)	10.0		(14.3		)	60.4			(56.6		)
Income (loss) before income taxes	(90.6		)	(53.0		)	10.5		28.7			31.5			(72.9		)
Income tax provision	—			(1.8		)	—		(11.6		)	—			(13.4		)
Net income (loss)	(90.6		)	(54.8		)	10.5		17.1			31.5			(86.3		)
Net income attributable to non-controlling interest	—			—			—		—			(4.3		)	(4.3		)
Net income (loss) attributable to ON Semiconductor Corporation	$	(90.6	)	$	(54.8	)	$	10.5	$	17.1		$	27.2		$	(90.6	)
Comprehensive income (loss) attributed to ON Semiconductor Corporation	$	(85.0	)	$	(49.2	)	$	10.5	$	21.4		$	17.3		$	(85.0	)

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2011 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	788.9		$	13.9	$	3,985.7		$	(1,346.2	)	$	3,442.3
Cost of revenues	—			531.5			0.8		3,236.4			(1,335.2		)	2,433.5
Gross profit	—			257.4			13.1		749.3			(11.0		)	1,008.8
Operating expenses:
Research and development	—			167.6			10.7		184.2			—			362.5
Selling and marketing	—			70.4			1.0		123.7			—			195.1
General and administrative	—			84.0			0.7		107.7			—			192.4
Amortization of acquisition related intangible assets	—			18.0			—		28.8			(4.1		)	42.7
Restructuring, asset impairments and other, net	—			3.4			—		99.3			—			102.7
Goodwill and intangible asset impairment	—			—			—		—			—			—
Total operating expenses	—			343.4			12.4		543.7			(4.1		)	895.4
Operating income	—			(86.0		)	0.7		205.6			(6.9		)	113.4
Other income (expenses), net:
Interest expense	(50.8		)	(8.5		)	—		(9.6		)	—			(68.9		)
Interest income	—			0.4			—		0.7			—			1.1
Other	—			(3.1		)	—		(5.8		)	—			(8.9		)
Loss on debt repurchase or exchange	(23.2		)	—			—		—			—			(23.2		)
Gain on SANYO Semiconductor acquisition	(0.1		)	24.4			—		—			—			24.3
Equity in earnings	85.7			151.6			7.7		—			(245.0		)	—
Other income (expenses), net	11.6			164.8			7.7		(14.7		)	(245.0		)	(75.6		)
Income before income taxes	11.6			78.8			8.4		190.9			(251.9		)	37.8
Income tax provision	—			1.5			—		(24.4		)	—			(22.9		)
Net income	11.6			80.3			8.4		166.5			(251.9		)	14.9
Less: Net income attributable to non-controlling interest	—			—			—		—			(3.3		)	(3.3		)
Net income attributable to ON Semiconductor Corporation	$	11.6		$	80.3		$	8.4	$	166.5		$	(255.2	)	$	11.6
Comprehensive income attributed to ON Semiconductor Corporation	$	24.0		$	92.6		$	8.4	$	178.9		$	(279.9	)	$	24.0

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2010 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	632.4		$	14.0	$	2,850.7		$	(1,183.7	)	$	2,313.4
Cost of revenues	—			495.4			1.8		2,051.6			(1,191.4		)	1,357.4
Gross profit	—			137.0			12.2		799.1			7.7			956.0
Operating Expenses:
Research and development	—			12.1			9.8		226.1			—			248.0
Selling and marketing	—			67.7			0.9		77.0			—			145.6
General and administrative	—			19.5			0.8		109.6			—			129.9
Amortization of acquisition related intangible assets	—			17.1			—		18.8			(4.2		)	31.7
Restructuring, asset impairments and other, net	—			7.1			—		3.4			—			10.5
Goodwill and intangible asset impairment	—			—			—		16.1			—			16.1
Total operating expenses	—			123.5			11.5		451.0			(4.2		)	581.8
Operating income	—			13.5			0.7		348.1			11.9			374.2
Other income (expenses), net:
Interest expense	(50.8		)	(6.6		)	—		(4.0		)	—			(61.4		)
Interest income	—			0.2			—		0.3			—			0.5
Other	—			3.2			—		(10.1		)	—			(6.9		)
Loss on debt repurchase	0.1			(0.8		)	—		—			—			(0.7		)
Equity in earnings	341.2			735.3			5.5		—			(1,082.0		)	—
Other income (expenses), net	290.5			731.3			5.5		(13.8		)	(1,082.0		)	(68.5		)
Income before income taxes	290.5			744.8			6.2		334.3			(1,070.1		)	305.7
Income tax provision	—			3.7			—		(16.5		)	—			(12.8		)
Net income	290.5			748.5			6.2		317.8			(1,070.1		)	292.9
Less: Net income attributable to non-controlling interest	—			—			—		—			(2.4		)	(2.4		)
Net income attributable to ON Semiconductor Corporation	$	290.5		$	748.5		$	6.2	$	317.8		$	(1,072.5	)	$	290.5
Comprehensive income attributable to ON Semiconductor Corporation	$	296.3		$	754.2		$	6.2	$	323.6		$	(1,084.0	)	$	296.3

Notes to Consolidated Statement of Cash Flow

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	732.2		$	12.9	$	3,760.9		$	(1,611.1	)	$	2,894.9
Cost of revenues	—			468.1			0.6		3,052.3			(1,578.0		)	1,943.0
Gross profit	—			264.1			12.3		708.6			(33.1		)	951.9
Operating expenses:
Research and development	—			180.3			10.3		176.9			—			367.5
Selling and marketing	—			68.2			0.8		111.9			—			180.9
General and administrative	—			5.0			0.6		155.0			—			160.6
Amortization of acquisition-related intangible assets	—			18.1			—		30.5			(4.2		)	44.4
Restructuring, asset impairments and other, net	—			3.3			0.1		161.9			—			165.3
Goodwill and intangible asset impairment	—			20.1			—		29.4			—			49.5
Total operating expenses	—			295.0			11.8		665.6			(4.2		)	968.2
Operating income (loss)	—			(30.9		)	0.5		43.0			(28.9		)	(16.3		)
Other income (expenses), net:
Interest expense	(38.0		)	(9.0		)	—		(9.1		)	—			(56.1		)
Interest income	—			0.8			—		0.7			—			1.5
Other	—			11.7			—		(5.9		)	—			5.8
Loss on debt repurchase or exchange	(7.8		)	—			—		—			—			(7.8		)
Gain on SANYO Semiconductor acquisition	—			—			—		—			—			—
Equity in earnings	(44.8		)	(25.6		)	10.0		—			60.4			—
Other income (expenses), net	(90.6		)	(22.1		)	10.0		(14.3		)	60.4			(56.6		)
Income (loss) before income taxes	(90.6		)	(53.0		)	10.5		28.7			31.5			(72.9		)
Income tax provision	—			(1.8		)	—		(11.6		)	—			(13.4		)
Net income (loss)	(90.6		)	(54.8		)	10.5		17.1			31.5			(86.3		)
Net income attributable to non-controlling interest	—			—			—		—			(4.3		)	(4.3		)
Net income (loss) attributable to ON Semiconductor Corporation	$	(90.6	)	$	(54.8	)	$	10.5	$	17.1		$	27.2		$	(90.6	)
Comprehensive income (loss) attributed to ON Semiconductor Corporation	$	(85.0	)	$	(49.2	)	$	10.5	$	21.4		$	17.3		$	(85.0	)

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2011 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	788.9		$	13.9	$	3,985.7		$	(1,346.2	)	$	3,442.3
Cost of revenues	—			531.5			0.8		3,236.4			(1,335.2		)	2,433.5
Gross profit	—			257.4			13.1		749.3			(11.0		)	1,008.8
Operating expenses:
Research and development	—			167.6			10.7		184.2			—			362.5
Selling and marketing	—			70.4			1.0		123.7			—			195.1
General and administrative	—			84.0			0.7		107.7			—			192.4
Amortization of acquisition related intangible assets	—			18.0			—		28.8			(4.1		)	42.7
Restructuring, asset impairments and other, net	—			3.4			—		99.3			—			102.7
Goodwill and intangible asset impairment	—			—			—		—			—			—
Total operating expenses	—			343.4			12.4		543.7			(4.1		)	895.4
Operating income	—			(86.0		)	0.7		205.6			(6.9		)	113.4
Other income (expenses), net:
Interest expense	(50.8		)	(8.5		)	—		(9.6		)	—			(68.9		)
Interest income	—			0.4			—		0.7			—			1.1
Other	—			(3.1		)	—		(5.8		)	—			(8.9		)
Loss on debt repurchase or exchange	(23.2		)	—			—		—			—			(23.2		)
Gain on SANYO Semiconductor acquisition	(0.1		)	24.4			—		—			—			24.3
Equity in earnings	85.7			151.6			7.7		—			(245.0		)	—
Other income (expenses), net	11.6			164.8			7.7		(14.7		)	(245.0		)	(75.6		)
Income before income taxes	11.6			78.8			8.4		190.9			(251.9		)	37.8
Income tax provision	—			1.5			—		(24.4		)	—			(22.9		)
Net income	11.6			80.3			8.4		166.5			(251.9		)	14.9
Less: Net income attributable to non-controlling interest	—			—			—		—			(3.3		)	(3.3		)
Net income attributable to ON Semiconductor Corporation	$	11.6		$	80.3		$	8.4	$	166.5		$	(255.2	)	$	11.6
Comprehensive income attributed to ON Semiconductor Corporation	$	24.0		$	92.6		$	8.4	$	178.9		$	(279.9	)	$	24.0

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2010 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total

Revenues	$	—		$	632.4		$	14.0	$	2,850.7		$	(1,183.7	)	$	2,313.4
Cost of revenues	—			495.4			1.8		2,051.6			(1,191.4		)	1,357.4
Gross profit	—			137.0			12.2		799.1			7.7			956.0
Operating Expenses:
Research and development	—			12.1			9.8		226.1			—			248.0
Selling and marketing	—			67.7			0.9		77.0			—			145.6
General and administrative	—			19.5			0.8		109.6			—			129.9
Amortization of acquisition related intangible assets	—			17.1			—		18.8			(4.2		)	31.7
Restructuring, asset impairments and other, net	—			7.1			—		3.4			—			10.5
Goodwill and intangible asset impairment	—			—			—		16.1			—			16.1
Total operating expenses	—			123.5			11.5		451.0			(4.2		)	581.8
Operating income	—			13.5			0.7		348.1			11.9			374.2
Other income (expenses), net:
Interest expense	(50.8		)	(6.6		)	—		(4.0		)	—			(61.4		)
Interest income	—			0.2			—		0.3			—			0.5
Other	—			3.2			—		(10.1		)	—			(6.9		)
Loss on debt repurchase	0.1			(0.8		)	—		—			—			(0.7		)
Equity in earnings	341.2			735.3			5.5		—			(1,082.0		)	—
Other income (expenses), net	290.5			731.3			5.5		(13.8		)	(1,082.0		)	(68.5		)
Income before income taxes	290.5			744.8			6.2		334.3			(1,070.1		)	305.7
Income tax provision	—			3.7			—		(16.5		)	—			(12.8		)
Net income	290.5			748.5			6.2		317.8			(1,070.1		)	292.9
Less: Net income attributable to non-controlling interest	—			—			—		—			(2.4		)	(2.4		)
Net income attributable to ON Semiconductor Corporation	$	290.5		$	748.5		$	6.2	$	317.8		$	(1,072.5	)	$	290.5
Comprehensive income attributable to ON Semiconductor Corporation	$	296.3		$	754.2		$	6.2	$	323.6		$	(1,084.0	)	$	296.3

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2012 (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	45.5		$	0.9		$	242.7		$	(13.1	)	$	276.0
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(55.0		)	(0.7		)	(200.6		)	—			(256.3		)
Proceeds from sales of property, plant and equipment	—			0.1			—			6.1			—			6.2
Deposits utilized for purchases of property, plant and equipment	—			—			—			1.4			—			1.4
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			377.6			—			—			—			377.6
Purchase of held-to-maturity securities	—			(273.8		)	—			—			—			(273.8		)
Contribution from (to) subsidiaries	167.8			(7.9		)	—			—			(159.9		)	—
Net cash provided by (used in) investing activities	167.8			41.0			(0.7		)	(181.6		)	(159.9		)	(133.4		)
Cash flows from financing activities:
Intercompany loans	—			(524.0		)	—			524.0			—			—
Intercompany loan repayments	—			562.0			—			(562.0		)	—			—
Payments from (to) parent	—			(180.9		)	—			7.9			173.0			—
Proceeds from issuance of common stock under the employee stock purchase plan	8.3			—			—			—			—			8.3
Proceeds from exercise of stock options	9.4			—			—			—			—			9.4
Payments of tax withholding for restricted shares	(9.6		)	—			—			—			—			(9.6		)
Repurchase of common stock	(55.5		)	—			—			—			—			(55.5		)
Proceeds from debt issuance	—			6.5			—			17.1			—			23.6
Payment of capital leases obligations	—			(37.4		)	—			(3.4		)	—			(40.8		)
Repayment of long-term debt	(117.8		)	(5.1		)	—			(109.6		)	—			(232.5		)
Payments made in connection with repurchase or exchange of convertible notes	(2.6		)	—			—			—			—			(2.6		)
Net cash used in financing activities	(167.8		)	(178.9		)	—			(126.0		)	173.0			(299.7		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(8.9		)	—			(8.9		)
Net (decrease) increase in cash and cash equivalents	—			(92.4		)	0.2			(73.8		)	—			(166.0		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	212.1		$	—		$	274.8		$	—		$	486.9

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2011 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	0.4		$	—		$	558.9		$	(13.8	)	$	545.5
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(69.0		)	(0.2		)	(247.2		)	—			(316.4		)
Proceeds from sale of property, plant and equipment	—			0.1			—			3.2			—			3.3
Deposits utilized for purchases of property, plant and equipment	—			—			—			0.5			—			0.5
Recovery from insurance on property, plant and equipment	—			—			—			13.3			—			13.3
Purchase of businesses, net of cash acquired	—			24.3			—			(42.2		)	—			(17.9		)
Proceeds from held-to-maturity securities	—			122.2			—			—			—			122.2
Purchase of held-to-maturity securities	—			(370.8		)	—			—			—			(370.8		)
Change in restricted cash	—			142.1			—			—			—			142.1
Contribution from subsidiaries	23.9			234.5			—			—			(258.4		)	—
Net cash provided by (used in) investing activities	23.9			83.4			(0.2		)	(272.4		)	(258.4		)	(423.7		)
Cash flows from financing activities:
Intercompany loans	—			(289.3		)	—			289.3			—			—
Intercompany loan repayments	—			182.2			—			(182.2		)	—			—
Payments to parent	—			(37.7		)	—			(234.5		)	272.2			—
Proceeds from issuance of common stock under the employee stock purchase plan	8.1			—			—			—			—			8.1
Proceeds from exercise of stock options	59.4			—			—			—			—			59.4
Payments of tax withholding for restricted shares	(19.3		)	—			—			—			—			(19.3		)
Proceeds from debt issuance	—			12.2			—			56.8			—			69.0
Payment of capital lease obligation	—			(36.4		)	—			(2.6		)	—			(39.0		)
Repayment of long-term debt	(56.2		)	(2.6		)	—			(100.7		)	—			(159.5		)
Payments made in connection with repurchase or exchange convertible notes	(15.9		)	—			—			—			—			(15.9		)
Net cash provided by (used in) financing activities	(23.9		)	(171.6		)	—			(173.9		)	272.2			(97.2		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			5.0			—			5.0
Net increase in cash and cash equivalents	—			(87.8		)	(0.2		)	117.6			—			29.6
Cash and cash equivalents, beginning of period	—			392.3			—			231.0			—			623.3
Cash and cash equivalents, end of period	$	—		$	304.5		$	(0.2	)	$	348.6		$	—		$	652.9

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2010 (in millions)

	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	384.4		$	0.2		$	181.7		$	(14.5	)	$	551.8
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(59.6		)	(0.2		)	(129.1		)	—			(188.9		)
Proceeds from sale of property, plant and equipment	—			37.1			—			—			—			37.1
Deposits utilized for purchases of property, plant and equipment	—			—			—			(2.2		)	—			(2.2		)
Purchase of business, net of cash acquired	—			—			—			(91.0		)	—			(91.0		)
Proceeds from held-to-maturity securities	—			—			—			45.5			—			45.5
Change in restricted cash	—			(142.1		)	—			5.9			—			(136.2		)
Contribution to subsidiaries	(12.1		)	50.0			—			—			(37.9		)	—
Net cash used in investing activities	(12.1		)	(114.6		)	(0.2		)	(170.9		)	(37.9		)	(335.7		)
Cash flows from financing activities:
Intercompany loans	—			(666.9		)	—			666.9			—			—
Intercompany loan repayments	—			672.7			—			(672.7		)	—			—
Payments to parent	—			(2.4		)	—			(50.0		)	52.4			—
Proceeds from issuance of common stock under the employee stock purchase plan	7.0			—			—			—			—			7.0
Proceeds from exercise of stock options	23.3			—			—			—			—			23.3
Payments of tax withholding for restricted shares	(15.0		)	—			—			—			—			(15.0		)
Proceeds from debt issuance	—			33.0			—			119.0			—			152.0
Payment of capital lease obligation	—			(29.8		)	—			(2.5		)	—			(32.3		)
Repayment of long-term debt	(3.2		)	(170.1		)				(81.1		)	—			(254.4		)
Net cash provided by (used in) financing activities	12.1			(163.5		)	—			(20.4		)	52.4			(119.4		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			0.9			—			0.9
Net increase in cash and cash equivalents	—			106.3			—			(8.7		)	—			97.6
Cash and cash equivalents, beginning of period	—			286.0			—			239.7			—			525.7
Cash and cash equivalents, end of period	$	—		$	392.3		$	—		$	231.0		$	—		$	623.3

___________________

See also Note 15: “Commitments and Contingencies—Other Contingencies” for further discussion of the Company’s guarantees.

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE THREE MONTHS ENDED MARCH 30, 2012 UNAUDITED (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	(31.3	)	$	(0.2	)	$	99.9		$	—		$	68.4
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(11.2		)	(0.5		)	(38.7		)	—			(50.4		)
Proceeds from sales of property, plant and equipment	—			—			—			1.9			—			1.9
Deposits utilized for purchases of property, plant and equipment	—			—			—			(9.6		)	—			(9.6		)
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			99.7			—			—			—			99.7
Purchase of held-to-maturity securities	—			(163.3		)	—			—			—			(163.3		)
Contribution from subsidiaries	0.5			—			—			—			(0.5		)	—
Net cash provided by (used in) investing activities	0.5			(74.8		)	(0.5		)	(34.9		)	(0.5		)	(110.2		)
Cash flows from financing activities:
Intercompany loans	—			(23.3		)	—			23.3			—			—
Intercompany loan repayments	—			70.2			—			(70.2		)	—			—
Payments from (to) parent	—			(0.5		)	—			—			0.5			—
Proceeds from issuance of common stock under the employee stock purchase plan	—			—			—			—			—			—
Proceeds from exercise of stock options	4.8			—			—			—			—			4.8
Payments of tax withholding for restricted shares	(5.3		)	—			—			—			—			(5.3		)
Repurchase of common stock	—			—			—			—			—			—
Proceeds from debt issuance	—			—			—			2.0			—			2.0
Payment of capital leases obligations	—			(11.0		)	—			(0.4		)	—			(11.4		)
Repayment of long-term debt	—			(1.1		)	—			(14.5		)	—			(15.6		)
Payments made in connection with repurchase or exchange of convertible notes	—			—			—			—			—			—
Net cash provided by (used in) financing activities	(0.5		)	34.3			—			(59.8		)	0.5			(25.5		)
Effect of exchange rate changes on cash and cash equivalents	—			—						(5.5		)	—			(5.5		)
Net (decrease) increase in cash and cash equivalents	—			(71.8		)	(0.7		)	(0.3		)	—			(72.8		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	232.7		$	(0.9	)	$	348.3		$	—		$	580.1

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 29, 2012 UNAUDITED (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	90.9		$	0.9		$	42.3		$	(6.6	)	$	127.5
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(38.6		)	(0.7		)	(75.4		)	—			(114.7		)
Proceeds from sales of property, plant and equipment	—			—			—			1.9			—			1.9
Deposits utilized for purchases of property, plant and equipment	—			—			—			(2.5		)	—			(2.5		)
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			232.6			—			—			—			232.6
Purchase of held-to-maturity securities	—			(222.6		)	—			—			—			(222.6		)
Contribution from subsidiaries	96.9			—			—			—			(96.9		)	—
Net cash provided by (used in) investing activities	96.9			(28.6		)	(0.7		)	(64.5		)	(96.9		)	(93.8		)
Cash flows from financing activities:
Intercompany loans	—			(180.6		)	—			180.6			—			—
Intercompany loan repayments	—			188.2			—			(188.2		)	—			—
Payments from (to) parent	—			(103.5		)	—			—			103.5			—
Proceeds from issuance of common stock under the employee stock purchase plan	2.3			—			—			—			—			2.3
Proceeds from exercise of stock options	5.3			—			—			—			—			5.3
Payments of tax withholding for restricted shares	(8.3		)	—			—			—			—			(8.3		)
Repurchase of common stock	—			—			—			—			—			—
Proceeds from debt issuance	—			—			—			2.0			—			2.0
Payment of capital leases obligations	—			(19.1		)	—			(2.1		)	—			(21.2		)
Repayment of long-term debt	(96.2		)	(2.1		)	—			(48.2		)	—			(146.5		)
Payments made in connection with repurchase or exchange of convertible notes	—			—			—			—			—			—
Net cash used in financing activities	(96.9		)	(117.1		)	—			(55.9		)	103.5			(166.4		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(2.4		)	—			(2.4		)
Net (decrease) increase in cash and cash equivalents	—			(54.8		)	0.2			(80.5		)	—			(135.1		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	249.7		$	—		$	268.1		$	—		$	517.8

CONDENSED CONSOLIDATING STATEMENT CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 28, 2012 UNAUDITED (in millions)

	Issuer			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Total

Net cash provided by operating activities	$	—		$	(34.1	)	$	0.9		$	179.2		$	(6.6	)	$	139.4
Cash flows from investing activities:
Purchases of property, plant and equipment	—			(49.7		)	(0.7		)	(148.4		)	—			(198.8		)
Proceeds from sales of property, plant and equipment	—			—			—			5.1			—			5.1
Deposits utilized for purchases of property, plant and equipment	—			—			—			1.6			—			1.6
Recovery from insurance on property, plant and equipment	—			—			—			11.5			—			11.5
Proceeds from held-to maturity securities	—			288.7			—			—			—			288.7
Purchase of held-to-maturity securities	—			(261.7		)	—			—			—			(261.7		)
Contribution from (to) subsidiaries	119.5			(7.9		)	—			—			(111.6		)	—
Net cash provided by (used in) investing activities	119.5			(30.6		)	(0.7		)	(130.2		)	(111.6		)	(153.6		)
Cash flows from financing activities:
Intercompany loans	—			(256.4		)	—			256.4			—			—
Intercompany loan repayments	—			323.6			—			(323.6		)	—			—
Payments from (to) parent	—			(126.1		)	—			7.9			118.2			—
Proceeds from issuance of common stock under the employee stock purchase plan	4.3			—			—			—			—			4.3
Proceeds from exercise of stock options	6.0			—			—			—			—			6.0
Payments of tax withholding for restricted shares	(8.8		)	—			—			—			—			(8.8		)
Repurchase of common stock	(22.5		)	—			—			—			—			(22.5		)
Proceeds from debt issuance	—			6.5			—			4.6			—			11.1
Payment of capital leases obligations	—			(27.8		)	—			(2.8		)	—			(30.6		)
Repayment of long-term debt	(96.2		)	(3.6		)	—			(73.5		)	—			(173.3		)
Payments made in connection with repurchase or exchange of convertible notes	(2.3		)	—			—			—			—			(2.3		)
Net cash used in financing activities	(119.5		)	(83.8		)	—			(131.0		)	118.2			(216.1		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(1.2		)	—			(1.2		)
Net (decrease) increase in cash and cash equivalents	—			(148.5		)	0.2			(83.2		)	—			(231.5		)
Cash and cash equivalents, beginning of period	—			304.5			(0.2		)	348.6			—			652.9
Cash and cash equivalents, end of period	$	—		$	156.0		$	—		$	265.4		$	—		$	421.4

Schedule of Quantifying Prior Year Misstatements Corrected in Current Year Financial Statements

Please refer below for the impact of the corrections to the Condensed Consolidating Balance Sheet as of December 31, 2011 (in millions):



	Issuers		Guarantor Subsidiaries
	ON Semiconductor Corporation		SCI LLC		Other Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Total
As of December 31, 2011
Increase (decrease) in short term intercompany and current assets	$	—	$	—	$	3.4	$	27.2	$	(30.6	)	$	—
Increase (decrease) in long-term intercompany and assets	—		348.8		51.1		—		(399.9		)	—
Increase (decrease) in total assets	$	—	$	348.8	$	54.5	$	27.2	$	(430.5	)	$	—

Increase (decrease) in short-term intercompany and current liabilities	$	—	$	30.6	$	—	$	—	$	(30.6	)	$	—
Increase (decrease) in long-term intercompany and liabilities	—		318.2		54.5		27.2		(399.9		)	—
Increase (decrease) in total liabilities	$	—	$	348.8	$	54.5	$	27.2	$	(430.5	)	$	—

Increase (decrease) in equity	$	—	$	—	$	—	$	—	$	—		$	—

Please refer below for the impact of the corrections to the Condensed Consolidating Statements of Cash Flows for the years-ended December 31, 2011 and 2010, respectively (in millions):



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total
For the Year Ended December 31, 2011
Total change in net cash provided by (used in) operating activities	$	—		$	(220.7	)	$	—	$	234.5		$	(13.8	)	$	—
Total change in net cash provided by (used in) investing activities	23.9			234.5			—		—			(258.4		)	—
Total change in net cash provided by (used in) financing activities	(23.9		)	(13.8		)	—		(234.5		)	272.2			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—		$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total
For the Year Ended December 31, 2010
Total change in net cash provided by (used in) operating activities	$	—		$	(35.5	)	$	—	$	50.0		$	(14.5	)	$	—
Total change in net cash provided by (used in) investing activities	(12.1		)	50.0			—		—			(37.9		)	—
Total change in net cash provided by (used in) financing activities	12.1			(14.5		)	—		(50.0		)	52.4			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—		$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC		Other Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Total
For the Three Months Ended March 30, 2012
Total change in net cash provided by (used in) operating activities	$	—		$	—	$	—	$	—	$	—		$	—
Total change in net cash provided by (used in) investing activities	0.5			—		—		—		(0.5		)	—
Total change in net cash provided by (used in) financing activities	(0.5		)	—		—		—		0.5			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—	$	—	$	—	$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Total
For the Six Months Ended June 29, 2012
Total change in net cash provided by (used in) operating activities	$	—		$	6.6		$	—	$	—	$	(6.6	)	$	—
Total change in net cash provided by (used in) investing activities	96.9			—			—		—		(96.9		)	—
Total change in net cash provided by (used in) financing activities	(96.9		)	(6.6		)	—		—		103.5			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—	$	—		$	—



	Issuers			Guarantor Subsidiaries
	ON Semiconductor Corporation			SCI LLC			Other Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Total
For the Nine Months Ended September 28, 2012
Total change in net cash provided by (used in) operating activities	$	—		$	(103.5	)	$	—	$	110.1		$	(6.6	)	$	—
Total change in net cash provided by (used in) investing activities	119.5			(7.9		)	—		—			(111.6		)	—
Total change in net cash provided by (used in) financing activities	(119.5		)	111.4			—		(110.1		)	118.2			—
Total change in net increase (decrease) in cash and cash equivalents	$	—		$	—		$	—	$	—		$	—		$	—

Supplementary Financial Information (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Consolidated quarterly financial information for 2012 and 2011 follows (in millions, except per share data):




	Quarter ended 2012
	March 30		June 29		September 28			December 31
Revenues	$	744.4	$	744.8	$	725.5		$	680.2
Gross Profit	245.2		258.3		238.0			210.4
Net income (loss) attributable to ON Semiconductor Corporation	28.2		6.9		12.5			(138.2		)
Diluted net income (loss) per common share attributable to ON Semiconductor Corporation	0.06		0.02		0.03			(0.31		)
	Quarter ended 2011
	April 1		July 1		September 30			December 31
Revenues	$	870.6	$	905.8	$	898.0		$	767.9
Gross Profit	242.4		266.1		261.1			239.2
Net income (loss) attributable to ON Semiconductor Corporation	35.5		34.3		(49.4		)	(8.8		)
Diluted net income (loss) per common share attributable to ON Semiconductor Corporation	0.08		0.07		(0.11		)	(0.02		)

Significant Accounting Policies (Narrative) (Details)	12 Months Ended
Significant Accounting Policies (Narrative) (Details)	Dec. 31, 2012
Significant Accounting Policies [Line Items]
Repayment period of distributor	30 days
Standard Product Warranty, period from the date of shipment	2 years
Repayment period of account receivable, cash discount, after the date of shipment	10 days
Minimum [Member]
Significant Accounting Policies [Line Items]
Useful life of intangible assets, in years	1 year
Minimum [Member] \| Building [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of property, plant and equipment, minimum (in years)	30 years
Minimum [Member] \| Machinery and Equipment [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of property, plant and equipment, minimum (in years)	3 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Useful life of intangible assets, in years	18 years
Maximum [Member] \| Building [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of property, plant and equipment, minimum (in years)	50 years
Maximum [Member] \| Machinery and Equipment [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of property, plant and equipment, minimum (in years)	20 years

Goodwill And Intangible Assets (Narrative) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2012 USD ($) projects reporting_unit	Dec. 31, 2012 USD ($) projects reporting_unit	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)
Number of Units Subject to Impairment Testing \| reporting_unit	2	2
Impairment		$ 43.1	$ 7.7
Number of projects being amortized \| projects	13	13
Goodwill impairment test projected net cash flows period		5 years	5 years	5 years
Goodwill impairment test long term growth rate		3.90%	3.90%	3.90%
Goodwill impairment test discount rate		12.00%	14.00%	13.00%
Goodwill impairment charge for digital and mixed signal group		$ 14.1		$ 8.9
Goodwill	$ 184.6	$ 184.6	$ 198.7	191.2
Impairment testing, percentage by which fair value exceeded carrying value	100.00%	100.00%
Amortization expense		$ 44.4	43.8	34.1
Cost of goods sold, amortization		0.0	1.1	$ 2.4
Gross cost of projects	$ 508.1	508.1	508.1
Standard Products Group
Impairment		3.8
SANYO Semiconductor Products Group
Impairment	126.0	31.6
Developed Technology Originally Classified As In Process Research And Development [Member]
Gross cost of projects	33.4	$ 33.4
Useful life of intangible assets, in years		8 years 6 months
In-process research and development
Impairment		$ 2.5	2.5
Gross cost of projects	2.5	2.5	$ 3.1
Reporting Unit Not Requiring Step Two of Impairment Test [Member]
Goodwill	$ 8.7	$ 8.7

Goodwill And Intangible Assets (Summary Of Goodwill by Operating Segment) (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill [Line Items]
Goodwill	$ 623.4	$ 623.4
Accumulated Amortization	(9.8)	(9.8)
Accumulated Impairment Losses	(429.0)	(414.9)
Carrying Value	184.6	198.7	$ 191.2
Application Products Group
Goodwill [Line Items]
Goodwill	547.4	547.4
Accumulated Amortization	(4.2)	(4.2)
Accumulated Impairment Losses	(406.0)	(406.0)
Carrying Value	137.2	137.2
Standard Products Group
Goodwill [Line Items]
Goodwill	76.0	76.0
Accumulated Amortization	(5.6)	(5.6)
Accumulated Impairment Losses	(23.0)	(8.9)
Carrying Value	47.4	61.5
SANYO Semiconductor Products Group
Goodwill [Line Items]
Goodwill	0.0	0.0
Accumulated Amortization	0.0	0.0
Accumulated Impairment Losses	0.0	0.0
Carrying Value	$ 0.0	$ 0.0

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Goodwill And Intangible Assets (Summary Of Change In Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Roll Forward]
Net balance as of December 31, 2011	$ 198.7	$ 191.2
Impairment charge	(14.1)	(7.5)
Net balance as of December 31, 2012	$ 184.6	$ 198.7

Goodwill And Intangible Assets (Summary Of Intangible Assets, Net) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Original Cost	$ 508.1	$ 508.1	$ 508.1
Accumulated Amortization	(181.1)	(181.1)	(136.7)
Foreign Currency Translation Adjustment		(26.9)	(26.5)
Accumulated Impairment		(43.1)	(7.7)
Carrying Value	257.0	257.0	337.2
SANYO Semiconductor Products Group
Accumulated Impairment	(126.0)	(31.6)
Intellectual property
Original Cost	13.9	13.9	13.9
Accumulated Amortization	(8.7)	(8.7)	(8.0)
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		(0.4)	0.0
Carrying Value	4.8	4.8	5.9
Assembled workforce
Original Cost	6.7	6.7	6.7
Accumulated Amortization	(6.7)	(6.7)	(6.7)
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		0.0	0.0
Carrying Value	0.0	$ 0.0	$ 0.0
Useful life of intangible assets, in years		5 years	5 years
Customer relationships
Original Cost	280.3	$ 280.3	$ 280.3
Accumulated Amortization	(91.8)	(91.8)	(71.9)
Foreign Currency Translation Adjustment		(26.9)	(26.5)
Accumulated Impairment		(23.0)	(3.2)
Carrying Value	138.6	138.6	178.7
Patents
Original Cost	43.7	43.7	43.7
Accumulated Amortization	(16.6)	(16.6)	(10.4)
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		(13.7)	0.0
Carrying Value	13.4	$ 13.4	$ 33.3
Useful life of intangible assets, in years		12 years	12 years
Developed technology
Original Cost	146.2	$ 146.2	$ 145.6
Accumulated Amortization	(51.3)	(51.3)	(35.5)
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		(2.4)	(2.0)
Carrying Value	92.5	92.5	108.1
Trademarks
Original Cost	14.0	14.0	14.0
Accumulated Amortization	(5.2)	(5.2)	(3.4)
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		(1.1)	0.0
Carrying Value	7.7	$ 7.7	$ 10.6
Useful life of intangible assets, in years		15 years	15 years
In-process research and development
Original Cost	2.5	$ 2.5	$ 3.1
Accumulated Amortization	0.0	0.0	0.0
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		(2.5)	(2.5)
Carrying Value	0.0	0.0	0.6
Backlog
Original Cost	0.8	0.8	0.8
Accumulated Amortization	(0.8)	(0.8)	(0.8)
Foreign Currency Translation Adjustment		0.0	0.0
Accumulated Impairment		0.0	0.0
Carrying Value	$ 0.0	$ 0.0	$ 0.0
Useful life of intangible assets, in years		3 months 18 days	3 months 18 days
Minimum [Member]
Useful life of intangible assets, in years		1 year
Minimum [Member] \| Intellectual property
Useful life of intangible assets, in years		5 years	5 years
Minimum [Member] \| Customer relationships
Useful life of intangible assets, in years		5 years	5 years
Minimum [Member] \| Developed technology
Useful life of intangible assets, in years		5 years	5 years
Maximum [Member]
Useful life of intangible assets, in years		18 years
Maximum [Member] \| Intellectual property
Useful life of intangible assets, in years		12 years	12 years
Maximum [Member] \| Customer relationships
Useful life of intangible assets, in years		18 years	18 years
Maximum [Member] \| Developed technology
Useful life of intangible assets, in years		12 years	12 years

Goodwill And Intangible Assets (Summary Of Amortization Expense) (Details) $ in Millions	Dec. 31, 2012 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2013	$ 33.0
2014	32.6
2015	31.7
2016	30.6
2017	27.7
Thereafter	101.4
Total estimated amortization expense	$ 257.0

Acquisitions (Acquisition Of SANYO Semiconductor Co., Ltd.) (Details) - USD ($) $ in Millions	5 Months Ended	12 Months Ended
	May 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jan. 02, 2011
Gain on SANYO Semiconductor acquisition		$ 0.0	$ 24.3	$ 0.0
Acquisition of SANYO Semiconductor Co., LTD
Business acquisition paid in cash					$ 142.1
Business acquisition price note payable					$ 377.5
Cash acquired from acquisition			39.7
Business acquisition, initial contingent consideration			19.0
Acquisition related expenses			7.3
Gain on SANYO Semiconductor acquisition			24.3
Acquired intangible assets			$ 55.7
Weighted average useful life, years			8 years 9 months 18 days
Defined benefit pension plan, liabilities			$ 50.9
Acquisition of SANYO Semiconductor Co., LTD \| Withdrawal from Multiemployer Defined Benefit Plan [Member]
Defined benefit pension plan, liabilities			144.9
Acquisition of SANYO Semiconductor Co., LTD \| Patents
Intangible assets			$ 27.0
Weighted average useful life, years			5 years 6 months
Acquisition of SANYO Semiconductor Co., LTD \| Trademarks
Intangible assets			$ 3.0
Weighted average useful life, years			3 years
Acquisition of SANYO Semiconductor Co., LTD \| Customer relationships
Intangible assets			$ 25.7
Weighted average useful life, years			13 years
Acquisition of SANYO Semiconductor Co., LTD \| Estimated Fair Value Of Favorable Supply Arrangement [Member]
Estimated fair value of favorable supply arrangement included in other current assets			$ 80.0
Amortization Of Other Current Assets From Business Acquisition After Effect Of Foreign Currency Exchange			80.4
Acquisition of SANYO Semiconductor Co., LTD \| Estimated Fair Value Of Favorable Supply Arrangement [Domain]
Estimated Period Of Benefit For Favorable Supply Arrangement	5 months
Acquisition of SANYO Semiconductor Co., LTD \| Purchase price adjustments
Total business acquisition cost			479.9
Gain on SANYO Semiconductor acquisition			24.3
Acquired intangible assets			55.7
Estimated fair value of favorable supply arrangement included in other current assets			$ 119.2

Acquisitions (Schedule Of Business Combination Purchase Price Allocation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Gain on acquistion	$ 0.0	$ (24.3)	$ 0.0
Acquisition of SANYO Semiconductor Co., LTD
Intangible assets		55.7
Gain on acquistion		(24.3)
Purchase price adjustments \| Acquisition of SANYO Semiconductor Co., LTD
Cash and cash equivalents		117.1
Receivables, net		242.1
Inventories		400.3
Deferred income taxes current		0.5
Other current assets		119.2
Property, plant and equipment		146.7
Deferred income taxes, noncurrent		60.5
Intangible assets		55.7
Other non-current assets		14.9
Total assets acquired		1,157.0
Accounts payable		(300.0)
Deferred income taxes, current		(68.8)
Other current liabilities		(83.2)
Deferred income taxes, noncurrent		(0.5)
Other non-current liabilities		(200.3)
Total liabilities assumed		(652.8)
Net assets acquired		504.2
Gain on acquistion		(24.3)
Total business acquisition cost		$ 479.9

Acquisitions (Unaudited Proforma Consolidated Results Of Operations) (Details) - Acquisition of SANYO Semiconductor Co., LTD $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2010 USD ($) $ / shares
Net Revenues \| $	$ 3,848.2
Net Income \| $	$ 104.1
Net income per common share-Basic \| $ / shares	$ 0.24
Net income per common share-Diluted \| $ / shares	$ 0.23

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Acquisitions (Acquisition Of The CMOS Image Sensor Business Unit From Cypress Semiconductor) (Details) - Acquisition of the CMOS Image Sensor Business Unit from Cypress Semiconductor - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Feb. 27, 2011
Ownership percentage			100.00%
Total business acquisition cost			$ 34.1
Purchase Price Allocation of CMOS Image Sensor Business Unit [Abstract]
Intangible assets			11.2
In-process research and development			11.2
Acquired intangible assets			$ 22.4
Discount rate used for present value calculations			17.50%
Weighted average useful life, years	6 years 1 month 6 days
Allocation of purchase price to non-deductible goodwill		$ 7.5	$ 7.5
Allocation of purchase price to tax-deductible goodwill		$ 0.0
Customer relationships
Purchase Price Allocation of CMOS Image Sensor Business Unit [Abstract]
Intangible assets			4.2
Weighted average useful life, years	6 years
Developed technology
Purchase Price Allocation of CMOS Image Sensor Business Unit [Abstract]
Intangible assets			6.2
Weighted average useful life, years	7 years
Backlog
Purchase Price Allocation of CMOS Image Sensor Business Unit [Abstract]
Intangible assets			0.8
Weighted average useful life, years	3 months 18 days
Purchase price adjustments
Purchase Price Allocation of CMOS Image Sensor Business Unit [Abstract]
Cash and cash equivalents			1.5
Receivables, net			2.6
Inventories			9.2
Other current assets			0.4
Property, plant and equipment			1.2
Goodwill			7.5
Intangible assets			11.2
In-process research and development			11.2
Total assets acquired			44.8
Accounts payable			(5.6)
Other current liabilities			(3.7)
Other non-current liabilities			(1.4)
Total liabilities assumed			(10.7)
Net assets acquired			$ 34.1

Acquisitions Acquisition of Sound Design Technologies Ltd (Details) - USD ($) $ in Millions		12 Months Ended
	Jun. 09, 2010	Dec. 31, 2011	Dec. 31, 2012
Acquisition Of Sound Design Technologies Ltd
Business Acquisition [Line Items]
Ownership percentage	100.00%
Business acquisition paid in cash	$ 22.0
Business acquisition contingent liability	1.8
Range of potential earn-out payments, low	0.0
Range of potential earn-out payments, high	10.0
Earn out potential		$ 0.0
Purchase Price Allocation of Sound Design Technologies Ltd [Abstract]
Goodwill	5.9
Intangible assets	2.4
In-process research and development	2.8
Acquired intangible assets	$ 5.2
Discount rate used for present value calculations	9.00%
Weighted average useful life, years	10 years
Total business acquisition cost	$ 23.8
Purchase price adjustments \| Acquisition Of Sound Design Technologies Ltd
Purchase Price Allocation of Sound Design Technologies Ltd [Abstract]
Receivables, net	3.3
Inventories	7.8
Other current assets	1.0
Property, plant and equipment	2.7
Goodwill	5.9
Intangible assets	2.4
In-process research and development	2.8
Other non-current assets	2.0
Total assets acquired	27.9
Accounts payable	(2.2)
Other current liabilities	(1.9)
Total liabilities assumed	4.1
Net assets acquired	$ 23.8
Customer relationships \| Acquisition Of Sound Design Technologies Ltd
Purchase Price Allocation of Sound Design Technologies Ltd [Abstract]
Weighted average useful life, years	15 years 6 months
Intangible assets	$ 1.7
Developed technology \| Acquisition Of Sound Design Technologies Ltd
Purchase Price Allocation of Sound Design Technologies Ltd [Abstract]
Weighted average useful life, years	5 years
Intangible assets	$ 0.7
Application Products Group
Purchase Price Allocation of Sound Design Technologies Ltd [Abstract]
Goodwill			$ 8.7

Acquisitions Acquisition of California Micro Devices Corporation (Details) - Acquisition of California Micro Devices Corporation [Member] $ / shares in Units, $ in Millions	Jan. 27, 2010 USD ($) $ / shares
Business Acquisition [Line Items]
Ownership percentage	100.00%
Equity interest acquired, per share \| $ / shares	$ 4.70
Business acquisition paid in cash	$ 109.5
Fair value of stock options and restricted stock issued in purchase	3.7
Total business acquisition cost	113.2
Purchase Price Allocation of California Micro Devices Corporation [Abstract]
Goodwill	20.3
Intangible assets	21.7
In-process research and development	18.6
Acquired intangible assets	$ 40.3
Discount rate used for present value calculations	13.20%
Purchase price adjustments
Purchase Price Allocation of California Micro Devices Corporation [Abstract]
Cash and cash equivalents	$ 42.8
Receivables, net	5.0
Inventories	9.0
Other current assets	2.0
Property, plant and equipment	1.7
Goodwill	20.3
Intangible assets	21.7
In-process research and development	18.6
Other non-current assets	0.1
Total assets acquired	121.2
Accounts payable	(6.2)
Other current liabilities	(1.6)
Other non-current liabilities	(0.2)
Total liabilities assumed	8.0
Net assets acquired	113.2
Customer relationships
Purchase Price Allocation of California Micro Devices Corporation [Abstract]
Intangible assets	$ 4.0
Weighted average useful life, years	10 years
Developed technology
Purchase Price Allocation of California Micro Devices Corporation [Abstract]
Intangible assets	$ 17.7
Weighted average useful life, years	8 years

Restructuring, Asset Impairments And Other, Net (Reconciliation Of "Restructuring, Asset Impairments And Other, Net" Caption On The Consolidated Statement Of Operations) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

2012 global workforce reduction [Member]

$ 103.0

$ 86.3

$ 3.9

11.2

0.0

Restructuring Activities Related To SANYO Asset Write Down [Member]

11.2

94.4

Restructuring Activities Related To Voluntary Retirement Program at SANYO Semiconductor [Member]

94.4

47.6

(11.7)

Restructuring Activities Related To 2011 Aizu Closure [Member]

35.9

9.0

6.5

4.5

61.5

0.1

2.0

Restructuring Activities Related To The 2011 SANYO Semiconductor Acquisition [Member]

13.6

70.0

3.6

10.0

Other Restructuring [Member]

3.6

10.0

^[1]

2.0

^[1]

4.1

^[1]

0.5

Restructuring Activities Related to 2012 Plans [Member]

^[1]

6.6

73.4

103.0

(11.1)

Restructuring Activities Related To 2011 Thailand Closure [Member]

165.3

5.7

24.8

0.4

(18.6)

Restructuring Activities Related To 2011 Japan Earthquake And Tsunami [Member]

13.8

11.9

4.8

Restructuring Activities Related To The 2011 Phoenix Wafer Manufacturing Facility Closure [Member]

4.8

4.3

Restructuring Activities Related To The 2011 Global Workforce Reduction [Member]

4.3

^[1]

1.2

^[1]

0.5

Restructuring Activities Related To 2011 Plans [Member]

^[1]

1.7

27.7

86.3

(11.3)

Restructuring Activities Related To 2010 Acquisition Of Sound Design Technologies [Member]

$ 102.7

2.2

$ 0.0

Restructuring Activities Related To 2010 Acquisition Of California Micro Devices Corporation [Member]

2.2

3.5

0.1

0.0

Restructuring Activities Related To Two Thousand And Ten Cost Basis Investment Write Off [Member]

3.6

0.0

3.9

Restructuring Activities - Other [Member]

3.9

^[1]

0.3

^[1]

0.1

^[1]

0.4

Restructuring Activities Related To 2010 Plans [Member]

^[1]

0.8

6.0

0.2

4.3

$ 10.5

[1]	Includes charges related to the certain reductions in workforce, certain acquisitions, executive severance, facility closures, asset disposal activity and certain other activity which is not considered to be significant.

Restructuring, Asset Impairments And Other, Net (Rollforward Of Accrued Restructuring Charges) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period	$ 17.3
Balance at End of Period	17.1	$ 17.3
Estimated Employee Separation Charges [Member]
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period	8.9	1.4
Charges	67.8	25.8
Usage	(60.7)	(18.3)
Adjustments	(0.5)	0.0
Balance at End of Period	15.5	8.9
Estimated Costs To Exit [Member]
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period	8.4	9.9
Charges	5.6	3.3
Usage	(12.2)	(3.3)
Adjustments	(0.2)	(1.5)
Balance at End of Period	$ 1.6	$ 8.4

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

Less: Allowance for doubtful accounts

Restructuring, Asset Impairments And Other, Net (Narrative) (Details) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2012 USD ($)	Sep. 28, 2012 employees	Dec. 31, 2012 USD ($) employees	Dec. 31, 2011 USD ($) employees	Dec. 31, 2010 USD ($)
Restructuring Cost and Reserve [Line Items]
Accrued liabilities	$ 17.1		$ 17.1	$ 17.3
Asset impairment charges			103.0	86.3	$ 3.9
Impairment			43.1	7.7
SANYO Semiconductor Products Group
Restructuring Cost and Reserve [Line Items]
Other asset impairment charges	94.4
Impairment	126.0		31.6
Estimated Employee Separation Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			67.8	25.8
Accrued liabilities	15.5		15.5	8.9	1.4
Cash paid for exit costs			60.7	18.3
Estimated Costs To Exit [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			5.6	3.3
Accrued liabilities	1.6		1.6	8.4	$ 9.9
Cash paid for exit costs			12.2	3.3
Restructuring Activities Related To Voluntary Retirement Program at SANYO Semiconductor [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			35.9
Restructuring costs			47.6
Other restructuring costs			11.7
Restructuring Activities Related To Voluntary Retirement Program at SANYO Semiconductor [Member] \| Accrued Employee Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued liabilities	2.1		2.1
Restructuring Activities Related To Voluntary Retirement Program at SANYO Semiconductor [Member] \| Estimated Employee Separation Charges [Member]
Restructuring Cost and Reserve [Line Items]
Additional employee separation charges expected to incur			0.3
Restructuring Activities Related to Two Thousand and Twelve Global Workforce Reduction [Member] \| Accrued Employee Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued liabilities	4.0		4.0
Additional employee separation charges expected to incur			0.1
2012 global workforce reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			11.2
Restructuring costs			11.2
Other restructuring costs			0.0
Restructuring Activities Related To 2011 Thailand Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			13.8	11.9
Restructuring costs				5.7
Other restructuring costs			$ (0.4)	18.6
Number of employees terminated \| employees			0
Cash paid for exit costs			$ 1.5
Costs incurred associated with closure of facilities			4.5
Recovery from insurance on property, plant and equipment			3.0
Gain on sale of fixed assets			1.1
Asset impairment charges				24.8
Restructuring Activities Related To 2011 Thailand Closure [Member] \| Accrued Employee Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued liabilities	0.0		0.0
Restructuring Activities Related To 2011 Thailand Closure [Member] \| Accrued Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued liabilities	0.5		0.5
Restructuring Activities Related To 2011 Aizu Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			13.6	70.0
Restructuring costs			9.0	6.5
Other restructuring costs			(0.1)	(2.0)
Asset impairment charges			4.5	61.5
Restructuring Activities Related To 2011 Aizu Closure [Member] \| Accrued Employee Separation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrued liabilities	9.9		9.9
Restructuring Activities Related To 2011 Aizu Closure [Member] \| Estimated Employee Outplacement Services [Member]
Restructuring Cost and Reserve [Line Items]
Additional employee separation charges expected to incur			0.4
Restructuring Activities Related To The 2011 SANYO Semiconductor Acquisition [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			3.6	10.0
Accrued liabilities	0.0		0.0
Restructuring Charges, Cumulative	$ 13.6		13.6
Restructuring costs			$ 3.6	$ 10.0
Total Employees Notified [Member] \| Restructuring Activities Related To Voluntary Retirement Program at SANYO Semiconductor [Member]
Restructuring Cost and Reserve [Line Items]
Expected number of positions eliminated \| employees			558
Total Employees Notified [Member] \| Restructuring Activities Related to Two Thousand and Twelve Global Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Expected number of positions eliminated \| employees		232
Total Employees Notified [Member] \| Restructuring Activities Related To 2011 Thailand Closure [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees terminated \| employees				1,600
Total Employees Notified [Member] \| Restructuring Activities Related To 2011 Aizu Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 83.6
Number of employees terminated \| employees			207
Employees Terminated [Member] \| Restructuring Activities Related to Two Thousand and Twelve Global Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Expected number of positions eliminated \| employees			206
Employees Terminated [Member] \| Restructuring Activities Related To 2011 Aizu Closure [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees terminated \| employees			148
Minimum [Member] \| Restructuring Activities Related To 2011 Aizu Closure [Member] \| Estimated Costs To Exit [Member]
Restructuring Cost and Reserve [Line Items]
Additional employee separation charges expected to incur			$ 3.0
Maximum [Member] \| Restructuring Activities Related To 2011 Aizu Closure [Member] \| Estimated Costs To Exit [Member]
Restructuring Cost and Reserve [Line Items]
Additional employee separation charges expected to incur			$ 6.0

Balance Sheet Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Balance Sheet Related Disclosures [Abstract]
Depreciation expense for property, plant and equipment	$ 180.8	$ 162.8	$ 115.1
Assets financed under capital leases included in total property, plant and equipment	79.7	$ 89.5
Foreign currency translation gains related to Aizu facility	$ 19.6

Balance Sheet Information (Schedule of Balance Sheet Information) (Details) - USD ($)
$ in Millions

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Receivables, net:

Accounts receivable

$ 360.5

$ 464.3

(2.7)

(7.1)

Accounts receivable, net

357.8

457.2

Inventories:

Raw materials

73.2

58.8

Work in process

310.9

430.8

Finished goods

197.6

147.8

Inventories, net

581.7

637.4

Other Current Assets: (1)

Prepaid expenses

^[1]

24.3

26.9

Value added tax receivables

^[1]

34.3

41.0

^[1]

53.1

53.7

Fixed assets held for sale

^[1]

111.7

121.6

1.0

Property, plant and equipment, net: (2)

Land

^[2]

67.4

76.6

Buildings

^[2]

572.4

539.3

Machinery and equipment

^[2]

1,979.4

1,943.0

Total property, plant and equipment

^[2]

2,619.2

2,558.9

Less: Accumulated depreciation

^[2]

(1,515.9)

(1,449.4)

Fixed assets held for sale

1,103.3

^[2]

1,109.5

^[2]

$ 864.3

8.3

Accrued expenses:

Accrued payroll

102.9

125.2

Sales related reserves

64.9

45.5

Restructuring reserves

17.1

17.3

Accrued pension liability

7.4

11.4

Accrued Liabilities, Current, Total

36.0

40.4

228.3

239.8

Accumulated other comprehensive income (loss), net of tax of $0:

Foreign currency translation adjustments

(42.2)

(46.5)

Unrecognized prior service cost of defined benefit pension plan

(0.1)

(0.2)

Effects of cash flow hedges

0.8

0.0

Unrealized (gain) or loss on available for sale securities

0.4

0.0

Accumulated Other Comprehensive Income (Loss), Net of Tax, Total

$ (41.1)

$ (46.7)

[1]	Included in other current assets are $1.0 million of fixed assets that are held-for-sale as of December 31, 2012.
[2]	Included in property, plant and equipment are $8.3 million of fixed assets that are held-for-sale as of December 31, 2012.

Balance Sheet Information (Warranty Reserves) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Warranty Reserves [Roll Forward]
Beginning Balance	$ 5.8	$ 3.3	$ 3.2
Provision	8.1	4.0	0.9
Usage	(3.7)	(1.5)	(0.8)
Ending Balance	$ 10.2	$ 5.8	$ 3.3

Long-Term Debt (Long-Term Debt) (Details) - USD ($)

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 19, 2012

Sep. 04, 2012

Dec. 23, 2011

Sep. 30, 2011

Dec. 15, 2006

Dec. 21, 2005

$ 1,011,900,000

$ 1,207,000,000

Less: Current maturities

(353,600,000)

(370,100,000)

Senior Revolving Credit Facility (up to $325.0 million)

658,300,000

836,900,000

Credit facility, maximum borrowing capacity

325,000,000

$ 325,000,000

Loan with a Japanese company due 2013 through 2018, interest payable quarterly at 2.06% and 2.33%, respectively (1)

Debt instrument, earliest maturity year

^[1]

$ 302,000,000

$ 339,800,000

2013

Debt instrument, latest maturity year

2018

2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

2.06%

2.33%

$ 125,500,000

^[2]

$ 207,900,000

^[2]

$ 92,800,000

$ 46,600,000

2026

2.625%

2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)

$ 7,100,000

$ 24,500,000

$ 600,000

^[3]

$ 274,200,000

$ 176,600,000

2.625%

Zero Coupon Convertible Senior Subordinated Notes due 2024 (net of discount of $0.0 and $2.0 million, respectively) (4)

$ 24,200,000

$ 22,000,000

^[4]

$ 0

$ 94,200,000

2024

0.00%

1.875% Convertible Senior Subordinated Notes due 2025 (net of discount of $0.0 million and $6.6 million, respectively) (5)

$ 0

$ 2,000,000

^[5]

$ 73,400,000

$ 88,400,000

$ 73,400,000

2025

1.875%

Loan with Hong Kong bank, interest payable weekly at 1.96% and 2.04%, respectively (7)

$ 0

$ 6,600,000

^[6]

$ 30,000,000

$ 40,000,000

Loans with Philippine banks due 2013 through 2015, interest payable monthly and quarterly at an average rate of 1.97% and 2.01%, respectively (9)

1.96%

2.04%

Debt instrument, earliest maturity year

^[7]

$ 45,800,000

$ 68,200,000

2013

Debt instrument, latest maturity year

2015

Loan with Chinese bank due 2014, interest payable quarterly at 3.41% and 4.44%, respectively (10)

1.97%

2.01%

Unsecured debt

^[7]

$ 7,500,000

$ 10,000,000

Secured debt

^[7]

38,300,000

58,200,000

^[8]

$ 7,000,000

2014

Loans with Japanese banks due through 2013, interest payable monthly and semi-annually at an average rate of 1.58% and 1.71%, respectively (10)

3.41%

4.44%

Debt instrument, earliest maturity year

^[8]

$ 800,000

$ 3,500,000

2013

Debt instrument, latest maturity year

2013

Loan with Singapore bank, interest payable weekly at 1.95% and 1.97%, respectively (7)

1.58%

1.71%

^[6]

$ 15,000,000

$ 25,000,000

Loan with British finance company, interest payable monthly at 1.51% and 2.42%, respectively (7)

1.95%

1.97%

^[6]

$ 3,300,000

$ 13,100,000

U.S. real estate mortgages payable monthly through 2016 at an average rate of 4.86% (8)

1.51%

2.42%

^[9]

$ 29,800,000

$ 31,600,000

2016

U.S. equipment financing payable monthly through 2016 at 2.94% and 3.23%, respectively (6)

4.86%

4.857%

^[10]

$ 14,000,000

$ 10,800,000

2016

Capital lease obligations

2.94%

3.23%

$ 91,100,000

$ 100,900,000

[1]	This loan represents SCI LLC's unsecured loan with SANYO Electric, which is guaranteed by the Company.
[2]	The 2.625% Convertible Senior Subordinated Notes due 2026 may be put back to the Company at the option of the holders of the notes on December 15 of 2013, 2016 and 2021 or called at the option of the Company on or after December 20, 2013.
[3]	The 2.625% Convertible Senior Subordinated Notes due 2026, Series B may be put back to the Company at the option of the holders of the notes on December 15 of 2016 and 2021 or called at the option of the Company on or after December 20, 2016.
[4]	The Zero Coupon Convertible Senior Subordinated Notes due 2024 were repaid on April 16, 2012.
[5]	The 1.875% Convertible Senior Subordinated Notes due 2025 were partially redeemed by the Company on December 20, 2012. The balance as of December 31, 2012 represents notes submitted for conversion which is subject to a 20 consecutive trading-day observation period for settlement in January 2013.
[6]	Debt arrangement secured by accounts receivable
[7]	$7.5 million unsecured and $38.3 million secured by equipment and $10.0 million unsecured and $58.2 million secured by equipment, respectively
[8]	Unsecured debt arrangement
[9]	Debt arrangement secured by real estate
[10]	Debt arrangement secured by equipment

Long-Term Debt (Annual Maturities Relating To Long-Term Debt) (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011	Dec. 15, 2006	Dec. 21, 2005
Debt Instrument [Line Items]
2013	$ 360.7
2014	93.1
2015	71.6
2016	364.4
2017	29.1
Thereafter	124.3
Total	1,043.2
Principal payments relating to Zero Coupon Convertible Senior Subordinated Notes due 2024, 1.875% Convertible Senior Subordinated Notes due 2025, 2.625% Convertible Senior Subordinated Notes due 2026 and 2.625% Convertible Senior Subordinated Notes due 2026, Series B	$ 504.4
1.875% Convertible Senior Subordinated Notes Due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.875%	1.875%		1.875%
2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)
Debt Instrument [Line Items]
Debt instrument, interest rate	2.625%	2.625%	2.625%
2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)
Debt Instrument [Line Items]
Debt instrument, interest rate	2.625%	2.625%

Long-Term Debt Long-Term Debt Redemption, Conversion and Retirement of Debt (Details)

1 Months Ended

6 Months Ended

12 Months Ended

Jan. 28, 2013

USD ($)

Dec. 19, 2012

USD ($)

Jul. 21, 2006

USD ($)

Jul. 03, 2009

USD ($)

Dec. 31, 2011

USD ($)

Dec. 31, 2012

USD ($)

Dec. 20, 2012

USD ($)

Apr. 16, 2012

USD ($)

Dec. 21, 2005

1.875% Convertible Senior Subordinated Notes Due 2025 [Member]

$ 1,207,000,000

$ 1,011,900,000

^[1]

$ 73,400,000

$ 88,400,000

$ 73,400,000

1.875%

142.8571

Consecutive trading days included in calculation of conversion obligation | d

$ 1,000

Zero Coupon Convertible Senior Subordinated Notes Due 2024 [Member]

^[1]

$ 21,600,000

^[2]

$ 94,200,000

$ 0

0.00%

101.8849

$ 1,000

Subsequent Event [Member] | 1.875% Convertible Senior Subordinated Notes Due 2025 [Member]

^[2]

$ 96,200,000

Cash paid upon conversion

^[1]

$ 77,500,000

Cash paid upon conversion in excess of aggregate principal amount

^[1]

$ 4,100,000

[1]	The 1.875% Convertible Senior Subordinated Notes due 2025 were partially redeemed by the Company on December 20, 2012. The balance as of December 31, 2012 represents notes submitted for conversion which is subject to a 20 consecutive trading-day observation period for settlement in January 2013.
[2]	The Zero Coupon Convertible Senior Subordinated Notes due 2024 were repaid on April 16, 2012.

Long-Term Debt (Loss on Debt Repurchase or Exchange) (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

12 Months Ended

Dec. 15, 2012

Sep. 04, 2012

Apr. 15, 2010

Dec. 15, 2006

Sep. 30, 2011

Dec. 31, 2008

Jul. 03, 2009

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

$ 1,011.9

$ 1,207.0

$ (5.3)

$ 198.6

$ 99.9

92.8

46.6

$ 125.5

^[1]

$ 207.9

^[1]

2.625%

56.2

0.5

2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)

$ 199.1

$ 53.0

$ (7.8)

$ (23.2)

$ 198.6

99.9

^[2]

$ 274.2

$ 176.6

2.625%

2.0

Adjustments to additional paid in capital for reacquisition of equity component

0.6

$ 1.7

$ 1.9

Zero Coupon Convertible Senior Subordinated Notes Due 2024 [Member]

$ 0.1

$ 3.8

$ (3.1)

^[3]

$ 0.0

$ 94.2

0.00%

49.4

64.8

0.5

0.7

Debt Repurchase [Member] | 2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

$ 3.2

$ 60.9

$ 99.7

$ (5.3)

46.6

56.2

Adjustments to additional paid in capital for reacquisition of equity component

0.5

4.8

Debt Repurchase [Member] | Senior Bank Facilities [Member]

53.0

$ (0.7)

Debt Repurchase [Member] | Zero Coupon Convertible Senior Subordinated Notes Due 2024 [Member]

169.8

Debt Exchange [Member] | 2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

$ 0.1

198.6

Debt Exchange [Member] | 2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)

177.2

198.6

176.4

Adjustments to additional paid in capital for reacquisition of equity component

15.9

21.0

Debt Exchange [Member] | New Series B Two Point Six Two Five Percent Convertible Senior Subordinated Notes Due Two Zero Two Six [Member]

$ 198.6

[1]	The 2.625% Convertible Senior Subordinated Notes due 2026 may be put back to the Company at the option of the holders of the notes on December 15 of 2013, 2016 and 2021 or called at the option of the Company on or after December 20, 2013.
[2]	The 2.625% Convertible Senior Subordinated Notes due 2026, Series B may be put back to the Company at the option of the holders of the notes on December 15 of 2016 and 2021 or called at the option of the Company on or after December 20, 2016.
[3]	The Zero Coupon Convertible Senior Subordinated Notes due 2024 were repaid on April 16, 2012.

Long-Term Debt Long-Term Debt (Acquisition Note Payable To Sanyo Electric) (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Servicing Assets at Fair Value [Line Items]
Net carrying value		$ 1,011,900,000	$ 1,207,000,000
SANYO Electric [Member]
Servicing Assets at Fair Value [Line Items]
Period of debt, in years	7 years
Principal amount of debt	$ 377,500,000
Net carrying value		$ 302,000,000
Debt Instrument, Interest Rate Terms		3-month LIBOR plus 1.75% per annum
Basis spread on variable rate			1.75%
Principal payment of loan, quarterly		$ 9,400,000
Remaining balance of loan due in January 2018		$ 122,700,000

Long-Term Debt (Senior Revolving Credit Facility) (Details) - Senior Revolving Credit Facility [Member]		12 Months Ended
	Dec. 23, 2011 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 325,000,000	$ 325,000,000	$ 325,000,000
Period of debt, in years	5 years
Credit agreement financial covenants, maximum total leverage ratio		3.75
Credit agreement financial covenants, minimum interest coverage ratio		3.50
Debt issuance costs included in other assets		$ 1,900,000
SCI LLC [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 125,000,000
Ability to increase the size of the facility, in increments	10,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	40,000,000
Credit commitment outstanding		$ 200,000
Swingline Loans For Short-Term Borrowings [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	15,000,000
Foreign Currency Sublimit [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 75,000,000

Long-Term Debt (Zero Coupon Convertible Senior Subordinated Notes) (Details)

1 Months Ended

3 Months Ended

6 Months Ended

9 Months Ended

12 Months Ended

Apr. 15, 2010

USD ($)

Aug. 09, 2006

USD ($)

Apr. 06, 2004

USD ($)

Jul. 21, 2006

USD ($)

Jun. 30, 2006

USD ($)

Mar. 30, 2012

USD ($)

Dec. 31, 2008

USD ($)

Jun. 29, 2012

USD ($)

Jul. 03, 2009

USD ($)

$ / shares

Sep. 28, 2012

USD ($)

Dec. 31, 2012

USD ($)

Dec. 31, 2011

USD ($)

Dec. 31, 2010

USD ($)

$ / shares

Apr. 16, 2012

USD ($)

Initial conversion price of debt, per share | $ / shares

$ 2,000,000

$ 11,100,000

$ 23,600,000

$ 69,000,000

$ 152,000,000

$ 7.00

12% Senior Subordinated Notes Due 2009 [Member]

12.00%

Old Notes [Member]

$ 260,000,000

Offering expenses capitalized as debt issuance costs

251,200,000

$ 8,800,000

Effective interest rate

8.90%

Exchange fee

2.50

Percentage of principal amount tendered and exchanged

$ 443,000

$ 1,000

99.80%

Zero Coupon Convertible Senior Subordinated Notes Due 2024 [Member]

0.00%

$ 259,500,000

101.8849

$ 1,000

$ 3,200,000

$ 60,900,000

99,700,000

Write-off of unamortized debt issuance costs

49,400,000

64,800,000

500,000

700,000

Issuance of common stock, for repurchase of debt | shares

100,000

$ 3,800,000

$ (3,100,000)

7,400,000

Initial conversion price of debt, per share | $ / shares

$ 9.815

Percentage of product of closing sale price of common stock and conversion rate

98.00%

Principal amount outstanding

99,400,000

Original debt extinguished

96,200,000

Shares of common stock issued during repurchase, value

$ 98,500,000

$ 28,500,000

Debt discount recognized

$ 13,300,000

$ 0

$ 2,000,000

^[1]

$ 96,200,000

[1]	The Zero Coupon Convertible Senior Subordinated Notes due 2024 were repaid on April 16, 2012.

Long-Term Debt (1.875% Convertible Senior Subordinated Notes) (Details)

1 Months Ended

3 Months Ended

6 Months Ended

9 Months Ended

12 Months Ended

Dec. 19, 2012

USD ($)

Dec. 21, 2005

USD ($)

Mar. 30, 2012

USD ($)

Jun. 29, 2012

USD ($)

Sep. 28, 2012

USD ($)

Dec. 31, 2012

USD ($)

Dec. 31, 2011

USD ($)

Dec. 31, 2010

USD ($)

$ / shares

Dec. 20, 2012

USD ($)

Initial conversion price of debt, per share | $ / shares

$ 2,000,000

$ 11,100,000

$ 23,600,000

$ 69,000,000

$ 152,000,000

$ 7.00

Senior Revolving Credit Facility [Member]

1,700,000

Offering expenses capitalized as debt issuance costs

$ 1,900,000

1.875% Convertible Senior Subordinated Notes Due 2025 [Member]

$ 95,000,000

1.875%

2025

Offering expenses capitalized as debt issuance costs

$ 91,000,000

$ 4,000,000

Effective interest rate

9.50%

142.8571

Percentage of product of closing sale price of common stock and conversion rate

$ 1,000

103.00%

^[1]

$ 21,600,000

$ 500,000

Debt Redemption Date, December 20, 2012 [Member] | 1.875% Convertible Senior Subordinated Notes Due 2025 [Member]

$ 0

6,600,000

Debt Repayment Date, December 15, 2012 [Member]

100.00%

Debt Repayment Date, December 15, 2015 [Member]

100.00%

Debt Repayment Date, December 15, 2020 [Member]

100.00%

100.00%

SCI LLC [Member]

$ 6,500,000

$ 12,200,000

$ 33,000,000

[1]	The 1.875% Convertible Senior Subordinated Notes due 2025 were partially redeemed by the Company on December 20, 2012. The balance as of December 31, 2012 represents notes submitted for conversion which is subject to a 20 consecutive trading-day observation period for settlement in January 2013.

Long-Term Debt (2.625% Convertible Senior Subordinated Notes) (Details)

3 Months Ended

6 Months Ended

9 Months Ended

12 Months Ended

Dec. 15, 2012

USD ($)

Sep. 04, 2012

USD ($)

Dec. 15, 2006

USD ($)

Mar. 30, 2012

USD ($)

Sep. 30, 2011

USD ($)

Jun. 29, 2012

USD ($)

Sep. 28, 2012

USD ($)

Dec. 31, 2012

USD ($)

$ / shares

Dec. 31, 2011

USD ($)

Dec. 31, 2010

USD ($)

$ / shares

Initial conversion price of debt, per share | $ / shares

$ 2,000,000

$ 11,100,000

$ 23,600,000

$ 69,000,000

$ 152,000,000

$ 7.00

1,011,900,000

$ 1,207,000,000

2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

$ 1,700,000

$ 484,000,000

2.625%

Offering expenses capitalized as debt issuance costs

$ 471,700,000

13,300,000

$ 199,100,000

$ 53,000,000

Shares of common stock repurchased | shares

$ 198,600,000

$ 99,900,000

30,700,000

Repurchase of common stock outstanding

$ 230,000,000

Effective interest rate

8.50%

5.25%

95.2381

Initial conversion price of debt, per share | $ / shares

$ 1,000

$ 10.50

Percentage of product of closing sale price of common stock and conversion rate

103.00%

$ 92,800,000

46,600,000

$ 125,500,000

^[1]

$ 207,900,000

^[1]

Debt Instrument, Convertible, Effective Interest Rate

56,200,000

4.40%

Write-off of unamortized debt issuance costs

500,000

$ (5,300,000)

500,000

2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)

$ 600,000

$ 7,100,000

$ 24,500,000

Offering expenses capitalized as debt issuance costs

2.625%

1,400,000

$ 198,600,000

99,900,000

^[2]

$ 274,200,000

$ 176,600,000

Write-off of unamortized debt issuance costs

2,000,000

$ 600,000

1,700,000

(7,800,000)

(23,200,000)

Debt Redemption Date, December 20, 2013 [Member] | 2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

$ 24,200,000

$ 22,000,000

Debt Repayment Date, December 15, 2013 [Member] | 2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)

100.00%

100.00%

[1]	The 2.625% Convertible Senior Subordinated Notes due 2026 may be put back to the Company at the option of the holders of the notes on December 15 of 2013, 2016 and 2021 or called at the option of the Company on or after December 20, 2013.
[2]	The 2.625% Convertible Senior Subordinated Notes due 2026, Series B may be put back to the Company at the option of the holders of the notes on December 15 of 2016 and 2021 or called at the option of the Company on or after December 20, 2016.

Long-Term Debt (Capital Lease Obligations And Debt Guarantees) (Details) - Capital lease obligations $ in Millions	12 Months Ended
	Dec. 31, 2012 USD ($)
Debt Instrument [Line Items]
Capital lease obligations for machinery and equipment	$ 91.1
Capital lease obligations, interest rate range minimum	2.00%
Capital lease obligations, interest rate range maximum	15.50%

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

Operating Loss Carryforwards [Line Items]

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Line Items]
Valuation allowance	$ 1,420.1	$ 1,626.1
Operating loss carryforwards, expiration period	2013 through 2029
Limitation for the use of federal NOL's	$ 93.1
Provision for income taxes	13.4	22.9	$ 12.8
Income and withholding taxes, foreign	21.7	19.4	13.5
Additional valuation allowance	(7.8)	3.2
New reserves and interest on existing reserve for potential liabilities	0.9	2.9	2.7
Reversal of reserves and interest for potential liabilities	1.4	2.6
Reversal of accrued income taxes for anticipated audit issues			3.4
Undistributed earnings to be reinvested	1,291.6
Estimated foreign witholding taxes on repatriation of foreign income	7.6
Estimated federal taxes on repatriation of foreign income	54.0
Estimated state income taxes on repatriation of foreign income	4.2
Balance of unrecognized tax benefit	34.8	18.6	13.4	$ 17.0
Unrecognized tax position, that would affect the annual effective tax rate	18.2
Change in tax position reasonably possible	1.0
Interest and penalties recognized	0.2	(0.1)	(0.1)
Accrued interest and penalties	3.0	$ 2.9	$ 2.9
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	863.8
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	930.6
Foreign [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	1,410.4
Stock Option Deductions [Member]
Income Taxes [Line Items]
Valuation allowance	$ 57.3

Income Taxes (Income (Loss) Before Income Taxes And Minority Interests) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Expense (Benefit) [Abstract]
United States	$ (72.0)	$ (143.9)	$ (57.5)
Foreign	(0.9)	181.7	363.2
Income (loss) before income taxes	$ (72.9)	$ 37.8	$ 305.7

Income Taxes (Provision (Benefit) For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 0.2	$ 0.5	$ (0.3)
State and local	(0.1)	0.3	0.4
Foreign	16.4	25.0	8.4
Current, Provision (benefit) for income taxes	16.5	25.8	8.5
Deferred:
Federal	0.0	0.0	(1.2)
Foreign	(3.1)	(2.9)	5.5
Deferred, Provision (benefit) for income taxes	(3.1)	(2.9)	4.3
Provision (benefit) for income taxes	$ 13.4	$ 22.9	$ 12.8

Income Taxes (Reconciliation Of The U.S. Federal Statutory Income Tax Rate) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Effects of cumulative translation adjustments excluded from change in valuation allowance

$ 92.2

Decreases to defered tax assets excluded from change in valuation allowance

$ 109.8

U.S. federal statutory rate

35.00%

Increase (decrease) resulting from:

State and local taxes, net of federal tax benefit

0.10%

0.70%

0.10%

Foreign withholding taxes

(0.30%)

0.10%

0.00%

Foreign rate differential

10.40%

(588.00%)

(36.50%)

Dividend income from foreign subsidiaries

(62.70%)

146.10%

15.30%

Goodwill impairment

(6.80%)

0.00%

Gain on SANYO Semiconductor Transaction

0.00%

(22.50%)

0.00%

Research and development credit monetization

0.00%

(0.10%)

Change in valuation allowance

^[1]

(1.60%)

491.50%

(8.00%)

Tax reserves

(2.30%)

0.80%

(0.30%)

Return to accrual

12.30%

0.00%

Effective income tax rate

(2.50%)

(3.10%)

(1.30%)

(18.40%)

60.60%

4.20%

[1]	The change in the valuation allowance in 2012 excludes the effects of cumulative translation adjustments of approximately $92.2 million and decreases to deferred tax assets of approximately $109.8 million arising from the

Income Taxes (Tax Effects Of Temporary Differences) (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense (Benefit) [Abstract]
Net operating loss and tax credit carryforwards	$ 952.0	$ 1,056.5
Tax-deductible goodwill	18.2	40.6
Reserves and accruals	98.8	31.7
Property, plant and equipment	147.2	360.5
Inventories	83.8	101.3
Other	116.0	28.6
Deferred tax assets and liabilities before valuation allowance	1,416.0	1,619.2
Valuation allowance	(1,420.1)	(1,626.1)
Net deferred tax asset (liability)	$ (4.1)	$ (6.9)

Income Taxes (Activity For Unrecognized Gross Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Unrecognized Gross Tax Benefits
Balance at beginning of year	$ 18.6	$ 13.4	$ 17.0
Reserves acquired	0.0	1.3	0.0
Additions based on tax positions related to the current year	18.4	5.5	1.2
Additions for tax positions of prior years	(0.8)	0.8	0.5
Reductions for tax positions of prior years	0.0	(1.4)	(0.3)
Lapse of statute	(1.2)	(1.0)	(5.0)
Settlements	(0.2)	0.0	0.0
Balance at end of year	$ 34.8	$ 18.6	$ 13.4

Earnings Per Share and Equity (Income per Share Calculations) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stockholders' Equity Note [Abstract]
Net income (loss) attributable to ON Semiconductor Corporation	$ (138.2)	$ 12.5	$ 6.9	$ 28.2	$ (8.8)	$ (49.4)	$ 34.3	$ 35.5	$ (90.6)	$ 11.6	$ 290.5
Basic weighted average common shares outstanding									452.6	446.7	431.0
Add: Incremental shares for:
Dilutive effect of share-based awards									0.0	7.6	9.3
Dilutive effect of convertible notes									0.0	2.9	4.1
Diluted weighted average common shares outstanding									452.6	457.2	444.4
Net income (loss) per common share attributable to ON Semiconductor Corporation:
Basic (dollars per common share)									$ (0.20)	$ 0.03	$ 0.67
Diluted (dollars per common share)	$ (0.31)	$ 0.03	$ 0.02	$ 0.06	$ (0.02)	$ (0.11)	$ 0.07	$ 0.08	$ (0.20)	$ 0.03	$ 0.65
Anti-dilutive shares									15.7	11.7	13.7

Earnings Per Share and Equity (Narrative) (Details) - USD ($)		3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jul. 30, 2012	Mar. 30, 2012	Jun. 29, 2012	Sep. 28, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share Repurchase Program
Stock repurchase program, authorized amount	$ 300,000,000
Repurchase of common stock, shares					8,800,000
Treasury Stock, Value, Acquired, Cost Method, Net of Fees					$ 55,300,000
Weighted average price per share of shares repurchased					$ 6.26
Fees incurred for repurchase of shares					$ 200,000
Remaining amount authorized under share repurchase program					$ 244,700,000
Shares reissued or retired					0
Shares for Restricted Stock Units Tax Withholding
Payments of tax withholding for restricted shares		$ 5,300,000	$ 8,300,000	$ 8,800,000	$ 9,600,000	$ 19,300,000	$ 15,000,000
Shares reissued or retired					0
Noncontrolling Interest
Non-controlling interest in consolidated subsidiary					$ 29,600,000	25,300,000	22,000,000
Net (income) loss attributable to non-controlling interests					$ 4,300,000	$ 3,300,000	$ 2,400,000
Treasury Stock [Member]
Share Repurchase Program
Repurchase of common stock, shares					8,844,150
Shares for Restricted Stock Units Tax Withholding
Shares withheld for payment of taxes					1,141,640	2,037,941	1,956,317

Share-Based Compensation (Summary Of Share-Based Compensation Expense) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

Related income tax benefits

$ 20.5

$ 33.5

$ 52.7

^[1]

0.0

Share-based compensation expense, net of taxes

20.5

33.5

52.7

Cost Of Revenues [Member]

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

Research And Development [Member]

3.7

6.3

14.1

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

Selling And Marketing [Member]

4.5

6.9

10.5

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

General And Administrative [Member]

4.3

6.4

9.7

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

Restructuring Charges [Member]

8.0

13.9

17.9

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

$ 0.0

$ 0.5

[1]	Most of the Company’s share-based compensation relates to its domestic subsidiaries, which have historically experienced recurring net operating losses; therefore, no related tax benefits are recorded.

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Share-Based Compensation (Weighted-Average Assumptions Of Employee Stock Options) (Details) - Employee Stock Option [Member] - $ / shares	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	46.90%	52.10%	46.80%
Risk-free interest rate	0.80%	1.20%	1.70%
Expected Term	5 years	4 years 9 months 18 days	5 years
Weighted average fair value per share	$ 3.01	$ 3.88	$ 3.11

Share-Based Compensation (Weighted-Average Assumptions With Employee Stock Purchase Plan) (Details) - Employee Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Expected Term	3 months	3 months	3 months
Risk-free interest rate	0.07%	0.05%	0.14%
Volatility	43.00%	39.00%	39.00%
Weighted average fair value per share	$ 1.75	$ 2.09	$ 1.71

Share-Based Compensation (Summary Of Stock Option Plans) (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2012 USD ($) $ / shares shares
Summary of Stock Option Activity [Roll Forward]
Number of Shares, Outstanding at December 31, 2011 \| shares	18.7
Number of Shares, Granted \| shares	2.8
Number of Shares, Exercised \| shares	(1.9)
Number of Shares, Canceled \| shares	(2.4)
Number of Shares, Outstanding at December 31, 2012 \| shares	17.2
Weighted Average Exercise Price [Roll Forward]
Weighted-Average Exercise Price, Outstanding at December 31, 2011 \| $ / shares	$ 7.70
Weighted-Average Exercise Price. Granted \| $ / shares	7.37
Weighted-Average Exercise Price, Exercised \| $ / shares	5.00
Weighted-Average Exercise Price, Cancelled \| $ / shares	9.38
Weighted-Average Exercise Price, Outstanding at December 31, 2012 \| $ / shares	$ 7.70
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	4 years 1 month 6 days
Aggregate Intrinsic Value (In-The-Money), Outstanding at December 31, 2012 \| $	$ 9.6
Number of Shares, Exercisable at December 31, 2012 \| shares	13.2
Weighted-Average Exercise Price, Exercisable at December 31, 2012 \| $ / shares	$ 7.76
Weighted-Average Remaining Contractual Term (in years), Exercisable at December 31, 2012	3 years 6 months
Aggregate Intrinsic Value (In-The-Money), Exercisable at December 31, 2012 \| $	$ 8.1

Share-Based Compensation (Additional Information On Stock Options Outstanding) (Details) - $ / shares shares in Millions	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share Price	$ 7.05
Total exercisable outstanding	13.2
Number of Shares, Unexercisable	4.0
Total options outstanding	17.2	18.7
Option Price Less Than Closing Price Of Common Stock At End Of Quarter [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Shares, Exercisable	6.8
Weighted Average Exercise Price, Exercisable	$ 5.86
Number of Shares, Unexercisable	1.8
Weighted Average Exercise Price, Unexercisable	$ 6.23
Number of Shares, Total	8.6
Weighted Average Exercise Price, Total	$ 5.94
Option Price Above Closing Price Of Common Stock At End Of Quarter [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Shares, Exercisable	6.4
Weighted Average Exercise Price, Exercisable	$ 9.79
Number of Shares, Unexercisable	2.2
Weighted Average Exercise Price, Unexercisable	$ 8.11
Number of Shares, Total	8.6
Weighted Average Exercise Price, Total	$ 9.47
Total Outstanding [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Weighted Average Exercise Price, Exercisable	7.76
Weighted Average Exercise Price, Unexercisable	7.27
Weighted Average Exercise Price, Total	$ 7.70

Share-Based Compensation (Summary Of Restricted Stock Units Transactions) (Details) - Restricted Stock Units [Member] shares in Millions	12 Months Ended
	Dec. 31, 2012 $ / shares shares
Restricted Stock Activity [Roll Forward]
Nonvested shares of restricted stock units at December 31, 2011 \| shares	9.6
Number of Shares, Granted \| shares	4.6
Number of Shares, Released \| shares	(4.0)
Number of Shares, Cancelled \| shares	(1.3)
Nonvested shares of restricted stock units at December 31, 2012 \| shares	8.9
Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value, Nonvested shares of restricted stock units at December 31, 2011 \| $ / shares	$ 7.95
Weighted Average Grant Date Fair Value, Granted \| $ / shares	7.80
Weighted Average Grant Date Fair Value, Released \| $ / shares	5.53
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	9.32
Weighted Average Grant Date Fair Value, Nonvested shares of restricted stock units at December 31, 2012 \| $ / shares	$ 8.75

Share-Based Compensation (Narrative) (Details) - USD ($)	1 Months Ended			3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jan. 31, 2010	Oct. 31, 2008	Mar. 31, 2008	Mar. 30, 2012	Jun. 29, 2012	Sep. 28, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2004	May 15, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Intrinsic value of stock options exercised							$ 4,800,000
Cash received from exercise of stock options				$ 4,800,000	$ 5,300,000	$ 6,000,000	9,400,000	$ 59,400,000	$ 23,300,000
Proceeds from issuance of common stock under the employee stock purchase plan				$ 0	$ 2,300,000	$ 4,300,000	$ 8,300,000	$ 8,100,000	$ 7,000,000
Pre-vesting forfeitures							11.00%	11.00%	12.00%
Period after terminition in which options can be exercised							90 days
Number of options vested and expected to vest							16,500,000
Weighted average exercise price of options vested and expected to vest							$ 7.71
Net stock options as a percentage of outstanding shares at beginning of period							0.07%	0.02%
Stock options granted as a percentage of outstanding shares at end of period							0.62%	0.25%
Share-based compensation expenses							$ 20,500,000	$ 33,500,000	$ 52,700,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from exercise of stock options							9,400,000
Proceeds from issuance of common stock under the employee stock purchase plan							$ 8,300,000
Aggregate of common stock available for grant							2,600,000
Maximum employee subscription rate for the ESPP							10.00%
Shares issued pursuant to the employee stock purchase plan, shares							1,400,000	1,200,000	1,200,000
Employee Stock Option [Member] \| Amis Holdings Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options assumed in acquisition			9,400,000
Employee Stock Option [Member] \| Catalyst Semiconductor Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options assumed in acquisition		3,900,000
Employee Stock Option [Member] \| California Micro Devices Corporation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options assumed in acquisition	2,400,000
Additional stock options assumed in acquisition	300,000
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense on non-vested stock awards							$ 26,500,000
Pre-vesting forfeitures							4.00%	8.00%	12.00%
Equity awards granted in period							4,600,000
Reversal of previously recognized share-based compensation expense							$ 5,000,000
Compensation expense recognized on restricted stock units							$ 11,700,000
Weighted average grant date fair value							$ 7.80
Restricted Stock Units [Member] \| Amis Holdings Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock unit awards assumed in acquisition			1,100,000
Restricted Stock Units [Member] \| Catalyst Semiconductor Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock unit awards assumed in acquisition		400,000
Restricted Stock Units [Member] \| Officers And Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards granted in period							1,200,000
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense on non-vested stock awards							$ 4,300,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense on non-vested stock awards							$ 8,700,000
Recognition period for compensation expense							2 years 11 months
Time Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense on non-vested stock awards							$ 30,800,000
Compensation expense recognized on restricted stock units								$ 11,900,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance under the plan							15,000,000
Discount rate from market value paid by participants for shares under the plan							85.00%
Maximum annual amount of purchases per employee under the plan							$ 25,000
Shares authorized for purchase per employee per quarter							500
Maximum fair value of shares employee may purchase in a quarter							$ 6,250
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards granted in period							200,000
Weighted average grant date fair value							$ 6.52
Share-based compensation expenses							$ 1,500,000
Amended And Restated Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized under the Amended and Restated SIP											33,000,000
Shares available for issuance under the plan											59,100,000
Term of grant agreement							7 years
Aggregate of common stock available for grant							43,700,000
Two Thousand Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved and available for grant										30,500,000
Additional common shares reserved for issuance as a percentage of common stock outstanding										3.00%
Term of grant agreement							10 years
Two Thousand Stock Incentive Plan [Member] \| Amis Holdings Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares added to the 2000 SIP			4,900,000
Option Price Less Than Closing Price Of Common Stock At End Of Quarter [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit							$ 7.05
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit							$ 7.05
Minimum [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years
Maximum [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							4 years

Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 7.5
Expected company contribution in 2013	$ 27.4
Rate of return on plan assets in 2013	2.80%
Total underfunded status	$ 201.4
Expected company contribution in the current period	$ 27.4
Employer contribution as percentage of employee contribution	100.00%
Percentage of employee contribution, basis for employer contribution	4.00%
Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Compensation expense recognized	$ 3.4	$ 2.0	$ 0.4
Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Compensation expense recognized	$ 8.3	$ 8.7	$ 7.9
Equity Securities [Member] \| Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets of foreign plans investment in equity securities	0.00%	17.00%
Debt Securities [Member] \| Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets of foreign plans investment in equity securities	3.00%	25.00%
Corporate bonds [Member] \| Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets of foreign plans investment in equity securities	25.00%	2.00%
Other Investments [Member] \| Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets of foreign plans investment in equity securities	10.00%	54.00%
Cash and Cash Equivalents [Member] \| Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets of foreign plans investment in equity securities	62.00%	2.00%
Multiemployer Plans, Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation	$ 214.5
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets	83.6
Defined Benefit Plan, Net Pension Benefit Obligation	130.9
Pension and Other Postretirement Benefit Expense	$ 10.7	$ 16.4

Employee Benefit Plans (Summary Of Net Periodic Pension Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Service cost	$ 7.5	$ 9.4	$ 3.8
Interest cost	5.3	5.2	3.1
Expected return on plan assets	(3.5)	(4.0)	(2.8)
Amortization of prior service cost	0.1	2.6	1.1
Curtailment loss	(6.6)	2.0	0.0
Other losses (gains)	12.5	(3.1)	0.0
Total net periodic pension cost	$ 15.3	$ 12.1	$ 5.2
Discount rate	2.44%	3.50%	4.65%
Expected return on plan assets	3.21%	4.07%	4.75%
Rate of compensation increase	3.05%	4.66%	3.87%

Employee Benefit Plans (Summary Of Status Of Foreign Pension Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Change in projected benefit obligation
Projected benefit obligation at the beginning of the year	$ 176.4	$ 74.8
Benefit obligation incurred through acquisition	0.0	87.9
Benefit obligation assumed upon withdrawal from SANYO Semiconductor multi-employer plans	214.5	0.0
Service cost	7.5	9.4	$ 3.8
Interest cost	5.3	5.2	3.1
Net actuarial (gain) or loss	13.9	(7.8)
Benefits paid by plan assets	(13.3)	(3.2)
Benefits Paid by Company	(11.4)	0.0
Curtailment (gain) or loss	(6.6)	2.0
Plan amendments	0.0	2.6
Translation (gain) or loss and other	(6.5)	5.5
Projected benefit obligation at the end of the year	379.8	176.4	74.8
Accumulated benefit obligation at the end of the year	281.2	134.7
Change in plan assets
Balance, beginning	105.5	65.9
Plan assets incurred through acquisition	0.0	35.7
Assets assumed due to withdrawal from multi-employer plans	83.6	0.0
Transfer to defined contribution plan	(7.5)	0.0
Actual return on plan assets	5.4	(0.7)
Benefits paid from plan assets	(13.3)	(3.2)
Employer contributions	6.6	5.8
Translation gain or (loss)	(1.9)	2.0
Balance, ending	178.4	105.5	$ 65.9
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate accumulated benefit obligation	248.8	102.2
Aggregate fair value of plan assets	124.8	49.8
Amounts recognized in the balance sheet of consist of:
Non-current assets	0.2	12.4
Current liabilities	(7.4)	(11.4)
Non-current liabilities	(194.2)	(71.9)
Funded status	(201.4)	(70.9)
Amounts recognized in accumulated other comprehensive income consist of:
Prior service cost	$ 0.1	$ 0.1
Weighted average assumptions at the end of the year
Discount rate	2.44%	3.50%
Rate of compensation increase	3.05%	4.66%

Employee Benefit Plans (Fair Value Measurement Of Plan Assets) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Percentage of bond securities invested in japan

$ 178.4

$ 105.5

$ 65.9

76.00%

Cash/Money Markets [Member]

Foreign Government Securities [Member]

$ 111.4

2.5

Corporate Bonds, Debentures [Member]

12.6

56.1

^[1]

Equity Securities [Member]

4.4

26.7

^[2]

^[3]

17.7

Mutual Funds [Member]

Real Estate Fund [Member]

4.6

0.3

Insurance Contracts [Member]

0.1

Quoted Prices in Active Markets for Identical Assets (Level 1)

45.4

2.1

^[4]

Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash/Money Markets [Member]

120.8

91.5

Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Government Securities [Member]

111.4

2.5

Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate Bonds, Debentures [Member]

^[1]

9.0

51.5

Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity Securities [Member]

^[2]

0.4

21.2

Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual Funds [Member]

^[3]

16.0

Quoted Prices in Active Markets for Identical Assets (Level 1) | Real Estate Fund [Member]

0.0

0.3

Quoted Prices in Active Markets for Identical Assets (Level 1) | Insurance Contracts [Member]

0.0

Significant Observable Inputs (Level 2) [Member]

^[4]

0.0

Significant Observable Inputs (Level 2) [Member] | Cash/Money Markets [Member]

9.6

8.9

Significant Observable Inputs (Level 2) [Member] | Foreign Government Securities [Member]

0.0

Significant Observable Inputs (Level 2) [Member] | Corporate Bonds, Debentures [Member]

^[1]

3.6

4.6

Significant Observable Inputs (Level 2) [Member] | Equity Securities [Member]

^[2]

0.7

1.4

Significant Observable Inputs (Level 2) [Member] | Mutual Funds [Member]

^[3]

1.7

Significant Observable Inputs (Level 2) [Member] | Real Estate Fund [Member]

4.6

0.0

Significant Observable Inputs (Level 2) [Member] | Insurance Contracts [Member]

0.1

Significant Unobservable Inputs (Level 3) [Member]

^[4]

0.7

1.1

Significant Unobservable Inputs (Level 3) [Member] | Cash/Money Markets [Member]

48.0

5.1

7.5

Significant Unobservable Inputs (Level 3) [Member] | Foreign Government Securities [Member]

0.0

Significant Unobservable Inputs (Level 3) [Member] | Corporate Bonds, Debentures [Member]

^[1]

0.0

Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member]

3.3

^[2]

4.1

^[2]

3.5

Significant Unobservable Inputs (Level 3) [Member] | Mutual Funds [Member]

^[3]

0.0

Significant Unobservable Inputs (Level 3) [Member] | Real Estate Fund [Member]

0.0

Significant Unobservable Inputs (Level 3) [Member] | Insurance Contracts [Member]

0.0

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

$ 44.7

^[4]

$ 1.0

^[4]

$ 1.0

[1]	Includes investments in guaranteed returns securities.
[2]	Includes investments in government bonds and corporate bonds of developed countries, emerging market government bonds, emerging market corporate bonds and convertible bonds, of which 76% of bond securities were invested in Japan as of December 31, 2012.
[3]	Includes investments in equity securities of developed countries and emerging markets.
[4]	Includes certain investments with insurance companies' General Account which guarantees a minimum rate of return on the investment.

Employee Benefit Plans (Activity Of Plan Assets With Fair Value Measurement Using Significant Unobservable Inputs) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

$ 105.5

$ 65.9

Corporate Bonds, Debentures [Member]

178.4

105.5

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

^[1]

26.7

Insurance Contracts [Member]

4.4

26.7

^[1]

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

^[2]

2.1

Significant Unobservable Inputs (Level 3) [Member]

45.4

2.1

^[2]

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

5.1

7.5

44.4

(2.4)

(1.5)

Significant Unobservable Inputs (Level 3) [Member] | Foreign Government Securities [Member]

48.0

5.1

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

0.0

3.0

0.0

(3.0)

0.0

Significant Unobservable Inputs (Level 3) [Member] | Corporate Bonds, Debentures [Member]

0.0

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

4.1

^[1]

3.5

0.4

0.6

(1.2)

Significant Unobservable Inputs (Level 3) [Member] | Insurance Contracts [Member]

^[1]

3.3

4.1

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

1.0

^[2]

1.0

44.0

0.0

(0.3)

^[2]

$ 44.7

$ 1.0

[1]	Includes investments in government bonds and corporate bonds of developed countries, emerging market government bonds, emerging market corporate bonds and convertible bonds, of which 76% of bond securities were invested in Japan as of December 31, 2012.
[2]	Includes certain investments with insurance companies' General Account which guarantees a minimum rate of return on the investment.

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

Derivatives, Fair Value [Line Items]

Employee Benefit Plans (Expected Benefit Payments) (Details) $ in Millions	Dec. 31, 2012 USD ($)
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
2013	$ 17.6
2014	5.8
2015	5.9
2016	6.5
2017	7.3
5 years thereafter	70.6
Total	$ 113.7

Financial Instruments (Schedule Of Net Foreign Exchange Positions) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Financial Instruments [Line Items]
Buy (Sell)	$ (105.3)	$ (106.6)
Notional Amount	197.3	203.4
Realized and unrealized foreign currency transaction losses	3.5	(8.9)	$ (6.9)
Canadian Dollar [Member]
Financial Instruments [Line Items]
Buy (Sell)	0.0	(1.4)
Notional Amount	0.0	1.4
Chinese Renminbi [Member]
Financial Instruments [Line Items]
Buy (Sell)	(7.7)	(12.8)
Notional Amount	7.7	12.8
Czech Koruna [Member]
Financial Instruments [Line Items]
Buy (Sell)	4.3	6.8
Notional Amount	4.3	6.8
Euro [Member]
Financial Instruments [Line Items]
Buy (Sell)	(17.4)	(30.8)
Notional Amount	17.4	30.8
Indian Rupee [Member]
Financial Instruments [Line Items]
Buy (Sell)	(2.9)	(2.8)
Notional Amount	2.9	2.8
Japanese Yen [Member]
Financial Instruments [Line Items]
Buy (Sell)	(123.3)	(100.0)
Notional Amount	123.3	100.0
Korean Won [Member]
Financial Instruments [Line Items]
Buy (Sell)	1.5	1.0
Notional Amount	1.5	1.0
Malaysian Ringgit [Member]
Financial Instruments [Line Items]
Buy (Sell)	32.7	29.4
Notional Amount	32.7	29.4
Philippine Peso [Member]
Financial Instruments [Line Items]
Buy (Sell)	4.2	5.1
Notional Amount	4.2	5.1
Singapore Dollar [Member]
Financial Instruments [Line Items]
Buy (Sell)	3.3	2.7
Notional Amount	3.3	2.7
Thai Baht [Member]
Financial Instruments [Line Items]
Buy (Sell)	0.0	3.4
Notional Amount	0.0	3.4
Taiwan Dollar [Member]
Financial Instruments [Line Items]
Buy (Sell)	0.0	(7.2)
Notional Amount	$ 0.0	$ 7.2

Financial Instruments (Narrative) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Notional Amount

$ 197.3

$ 203.4

Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax

0.8

0.0

$ 0.0

Cash Flow Hedging [Member]

^[1]

111.7

121.6

Other liabilities

1,024.3

1,275.5

Derivatives, Fair Value [Line Items]

Notional Amount

45.9

Not Designated as Hedging Instrument [Member]

0.8

Derivatives, Fair Value [Line Items]

2.4

0.7

Other liabilities

$ 0.0

$ 0.1

[1]	Included in other current assets are $1.0 million of fixed assets that are held-for-sale as of December 31, 2012.

Fair Value Of Financial Instruments (Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011
Estimate of Fair Value [Member] \| Demand and time deposits [Member]
Cash and cash equivalents	$ 385.9	$ 455.3
Estimate of Fair Value [Member] \| Treasuries [Member]
Cash and cash equivalents	100.7	131.1
Estimate of Fair Value [Member] \| Commercial paper [Member]
Cash and cash equivalents	0.0	50.9
Estimate of Fair Value [Member] \| Corporate bonds [Member]
Cash and cash equivalents	0.3	15.6
Estimate of Fair Value [Member] \| Foreign currency exchange contracts [Member]
Other Current Assets	3.2	0.7
Liabilities	0.0	0.1
Quoted Prices in Active Markets (Level 1) [Member] \| Demand and time deposits [Member]
Cash and cash equivalents	385.9	455.3
Quoted Prices in Active Markets (Level 1) [Member] \| Treasuries [Member]
Cash and cash equivalents	100.7	131.1
Quoted Prices in Active Markets (Level 1) [Member] \| Commercial paper [Member]
Cash and cash equivalents	0.0	50.9
Quoted Prices in Active Markets (Level 1) [Member] \| Corporate bonds [Member]
Cash and cash equivalents	0.3	15.6
Quoted Prices in Active Markets (Level 1) [Member] \| Foreign currency exchange contracts [Member]
Other Current Assets	3.2	0.7
Liabilities	$ 0.0	$ 0.1

Fair Value Of Financial Instruments Fair Value of Short-term Investments (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carried at Amortized Cost	$ 144.8	$ 248.6
Unrecognized Gain/(Loss)	(0.1)	(0.2)
Fair Value	144.7	248.4
Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carried at Amortized Cost	25.5	101.0
Unrecognized Gain/(Loss)		(0.1)
Fair Value	25.5	100.9
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carried at Amortized Cost	119.3	128.6
Unrecognized Gain/(Loss)	(0.1)	(0.1)
Fair Value	$ 119.2	128.5
Government agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carried at Amortized Cost		19.0
Fair Value		$ 19.0

Fair Value Of Financial Instruments (Carrying Amounts And Fair Values Of Long-Term Borrowings) (Details) - USD ($) $ in Millions	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Measurements, Nonrecurring [Member] \| Carrying Amount [Member]
Assets, Fair Value Disclosure	$ 294.8	$ 102.8
Fair Value, Measurements, Nonrecurring [Member] \| Carrying Amount [Member] \| Level 2 [Member]
Property, plant and equipment		32.1
Fair Value, Measurements, Nonrecurring [Member] \| Carrying Amount [Member] \| Level 3 [Member]
Property, plant and equipment	237.1	70.7
Goodwill of impaired reporting unit	14.1
Intangible assets	43.6
Fair Value, Measurements, Nonrecurring [Member] \| Adjustment [Member]
Assets, Fair Value Disclosure	(152.5)	(86.3)
Fair Value, Measurements, Nonrecurring [Member] \| Adjustment [Member] \| Level 2 [Member]
Property, plant and equipment		(24.8)
Fair Value, Measurements, Nonrecurring [Member] \| Adjustment [Member] \| Level 3 [Member]
Property, plant and equipment	(103.0)	(61.5)
Goodwill of impaired reporting unit	(14.1)
Intangible assets	(35.4)
Fair Value, Measurements, Nonrecurring [Member] \| Fair Value [Member]
Assets, Fair Value Disclosure	142.3	16.5
Fair Value, Measurements, Nonrecurring [Member] \| Fair Value [Member] \| Level 2 [Member]
Property, plant and equipment		7.3
Fair Value, Measurements, Nonrecurring [Member] \| Fair Value [Member] \| Level 3 [Member]
Property, plant and equipment	134.1	9.2
Intangible assets	8.2
Convertible Notes [Member]
Carrying Amount	473.1	567.1
Fair Value	530.9	683.9
Long-term Debt [Member]
Carrying Amount	403.9	496.6
Fair Value	$ 380.6	$ 462.0

Commitments And Contingencies (Operating Leases Future Minimum Payments Receivable) (Details) $ in Millions	Dec. 31, 2012 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2013	$ 23.4
2014	19.1
2015	15.1
2016	13.3
2017	12.1
Thereafter	42.6
Total	$ 125.6

Commitments And Contingencies (Narrative) (Details)		12 Months Ended
Commitments And Contingencies (Narrative) (Details)	Dec. 27, 2011 USD ($) former_employee	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Mar. 19, 2012 former_employee	Jan. 19, 2012 former_employee
Loss Contingencies [Line Items]
Total rent expense		$ 24,000,000	$ 27,700,000	$ 22,200,000
Availability under senior revolving credit facility		40,000,000
Outstanding guarantees and letters of credit		5,900,000
Guarantees related to capital lease obligations		84,100,000
Net carrying value		1,011,900,000	1,207,000,000
Remedial payment on alleged failures of products		$ 20,000,000
Sanyo Semiconductor Thailand [Member]
Loss Contingencies [Line Items]
Lawsuit filing date		On December 27, 2011
Number of former employees filed complaints \| former_employee	112
Number of additional former employees filed complaints \| former_employee					46	3
lawsuits alleged damages, value	$ 25,400,000
SANYO Electric [Member]
Loss Contingencies [Line Items]
Net carrying value		$ 302,000,000
Senior Revolving Credit Facility [Member]
Loss Contingencies [Line Items]
Net carrying value		0	$ 0
Letter of Credit [Member] \| Senior Revolving Credit Facility [Member]
Loss Contingencies [Line Items]
Credit commitment outstanding		$ 200,000

Supplemental Disclosure of Cash Flow Information (Non-Cash Financing Activities And Cash Payments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Supplemental Cash Flow Elements [Abstract]
Income form business interruption insurance proceeds	$ 16.4
Non-cash financing activities:
Capital expenditures in accounts payable	54.4	$ 58.8	$ 69.2
Equipment acquired or refinanced through capital leases	31.0	24.9	69.2
Cash (received) paid for:
Interest income	(1.5)	(1.1)	(0.5)
Interest expense	30.4	31.8	23.6
Income taxes	$ 17.6	$ 20.4	$ 10.6

Segment Information (Narrative) (Details)	12 Months Ended
Segment Information (Narrative) (Details)	Dec. 31, 2012 customers segment	Dec. 31, 2011	Dec. 31, 2010 customers
Segment Reporting, Measurement Disclosures [Abstract]
Number of reporting segments	3
Number of customers individually accounting for more than 10% of total revenue	0	0	1
Percentage of total revenue	10.00%	10.00%	13.00%

Segment Information (Segment Information Of Revenues, Gross Profit And Operating Income) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues	$ 680.2	$ 725.5	$ 744.8	$ 744.4	$ 767.9	$ 898.0	$ 905.8	$ 870.6	$ 2,894.9	$ 3,442.3	$ 2,313.4
Application Products Group
Revenues									1,019.2	1,145.5	1,053.2
Segment gross profit									459.2	549.0	532.0
Segment operating income (loss)									111.2	190.8	197.1
Standard Products Group
Revenues									1,104.7	1,236.5	1,260.2
Segment gross profit									400.9	435.7	479.8
Segment operating income (loss)									240.0	254.6	301.0
SANYO Semiconductor Products Group
Revenues									771.0	1,060.3	0.0
Segment gross profit									143.1	79.1	0.0
Segment operating income (loss)									(91.8)	(159.4)	0.0
Reportable Segment
Revenues									2,894.9	3,442.3	2,313.4
Segment gross profit									1,003.2	1,063.8	1,011.8
Segment operating income (loss)									$ 259.4	$ 286.0	$ 498.1

Segment Information (Reconciliations Of Segment Gross Profit And Segment Operating Income) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	$ 210.4	$ 238.0	$ 258.3	$ 245.2	$ 239.2	$ 261.1	$ 266.1	$ 242.4	$ 951.9	$ 1,008.8	$ 956.0
Goodwill and Intangible Asset Impairment									(49.5)	0.0	(16.1)
Other unallocated operating expenses									(968.2)	(895.4)	(581.8)
Operating income (loss)									(16.3)	113.4	374.2
Reportable Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit for reportable segments									1,003.2	1,063.8	1,011.8
Operating income for reportable segments									259.4	286.0	498.1
Unallocated Amount to Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Other unallocated manufacturing costs									(51.3)	(55.0)	(55.8)
RestructuringSettlementAndImpairmentProvisions									165.3	102.7	10.5
Goodwill and Intangible Asset Impairment									(49.5)	0.0	(16.1)
Other unallocated operating expenses									$ (9.6)	$ (14.9)	$ (41.5)

Segment Information (Revenues By Geographic Location Including Local Sales And Exports) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues	$ 680.2	$ 725.5	$ 744.8	$ 744.4	$ 767.9	$ 898.0	$ 905.8	$ 870.6	$ 2,894.9	$ 3,442.3	$ 2,313.4
United States
Revenues									452.0	524.0	483.2
Other Americas
Revenues									15.0	36.6	12.3
United Kingdom
Revenues									388.3	424.7	373.0
Belgium
Revenues									0.5	3.7	0.7
China
Revenues									874.2	1,053.8	762.4
Japan
Revenues									401.2	494.8	59.5
Singapore
Revenues									627.7	683.3	540.8
Other Asia/Pacific
Revenues									$ 136.0	$ 221.4	$ 81.5

Segment Information (Summary Of Property, Plant And Equipment By Geographic Location) (Details) - USD ($)
$ in Millions

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

$ 1,103.3

^[1]

$ 1,109.5

^[1]

$ 864.3

United States

274.7

257.5

223.7

China

104.0

96.7

97.0

Europe

140.9

117.9

104.6

Malaysia

185.0

164.5

137.4

Philippines

188.8

204.0

173.8

Other Asia/Pacific

12.0

32.8

4.5

Japan

78.9

130.2

70.8

Vietnam

35.2

23.4

0.0

Belgium

70.7

70.0

47.8

Other Americas

Condensed Financial Statements, Captions [Line Items]

$ 13.1

$ 12.5

$ 4.7

[1]	Included in property, plant and equipment are $8.3 million of fixed assets that are held-for-sale as of December 31, 2012.

Guarantor And Non-Guarantor Statements Guarantor And Non-Guarantor Statements (Narrative) (Details)	Dec. 31, 2012	Dec. 31, 2011
1.875% Convertible Senior Subordinated Notes Due 2025 [Member]
Debt instrument, interest rate	1.875%
2.625% Convertible Senior Subordinated Notes due 2026 (net of discount of $7.1 million and $24.5 million, respectively) (2)
Debt instrument, interest rate	2.625%
2.625% Convertible Senior Subordinated Notes due 2026, Series B (net of discount of $24.2 million and $22.0 million, respectively) (3)
Debt instrument, interest rate	2.625%	2.625%

Guarantor And Non-Guarantor Statements (Notes To Consolidated Statement Of Balance Sheet) (Details) - USD ($)
$ in Millions

Dec. 31, 2012

Sep. 28, 2012

Jun. 29, 2012

Mar. 30, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

$ 486.9

$ 421.4

$ 517.8

$ 580.1

$ 652.9

$ 623.3

$ 525.7

144.8

248.6

357.8

457.2

581.7

637.4

0.0

^[1]

111.7

121.6

10.5

10.0

1,693.4

2,127.7

1,103.3

^[2]

1,109.5

^[2]

864.3

31.2

34.2

184.6

198.7

191.2

257.0

337.2

0.0

58.9

76.2

3,328.4

3,883.5

279.5

451.8

228.3

239.8

4.9

7.5

0.6

0.7

134.5

172.0

22.9

33.6

353.6

370.1

0.0

1,024.3

1,275.5

658.3

836.9

232.2

260.1

22.9

17.5

0.0

1,937.7

2,390.0

5.1

5.0

3,156.4

3,113.5

(41.1)

(46.7)

(1,292.9)

(1,202.3)

Total ON Semiconductor Corporation stockholders’ equity

(466.4)

(401.3)

1,361.1

1,468.2

Non-controlling interest in consolidated subsidiaries

29.6

25.3

22.0

1,390.7

1,493.5

1,388.0

1,004.6

Condensed Financial Statements, Captions [Line Items]

3,328.4

3,883.5

Issuer [Member]

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

1,834.9

2,036.2

1,834.9

2,036.2

0.0

0.0

0.0

0.5

0.6

0.0

0.0

198.9

182.6

0.0

199.4

183.2

274.1

384.5

0.0

0.0

0.3

473.8

568.0

5.1

5.0

3,156.4

3,113.5

(41.1)

(46.7)

(1,292.9)

(1,202.3)

Total ON Semiconductor Corporation stockholders’ equity

(466.4)

(401.3)

1,361.1

1,468.2

Non-controlling interest in consolidated subsidiaries

0.0

1,361.1

1,468.2

Condensed Financial Statements, Captions [Line Items]

1,834.9

2,036.2

SCI LLC [Member]

212.1

156.0

249.7

232.7

304.5

392.3

286.0

144.8

248.6

45.4

64.7

34.5

36.2

0.0

10.6

7.5

2.3

5.5

449.7

667.0

272.0

255.2

0.0

111.7

125.7

128.2

152.3

310.8

348.8

1,287.1

1,303.5

2,559.5

2,852.5

24.1

32.8

53.0

61.0

0.0

(0.1)

0.0

34.2

43.7

0.0

80.2

74.1

20.5

30.6

212.0

242.1

344.1

393.8

27.5

26.6

2.4

5.5

0.0

586.0

668.0

0.3

2,549.3

2,711.2

(41.0)

(46.7)

(535.1)

(480.3)

Total ON Semiconductor Corporation stockholders’ equity

0.0

1,973.5

2,184.5

Non-controlling interest in consolidated subsidiaries

0.0

1,973.5

2,184.5

Other Subsidiaries [Member]

2,559.5

2,852.5

Condensed Financial Statements, Captions [Line Items]

0.0

(0.9)

(0.2)

0.0

0.0

0.0

0.0

3.3

3.4

0.0

0.0

3.3

3.2

2.8

2.3

0.0

37.2

37.3

0.0

51.0

51.1

78.5

59.1

172.8

153.0

0.0

0.1

0.9

0.8

0.0

0.0

0.0

0.0

0.1

0.0

0.0

1.0

0.9

0.0

0.3

0.4

0.0

0.0

1.3

50.9

259.2

238.4

0.0

(138.6)

(137.6)

Total ON Semiconductor Corporation stockholders’ equity

0.0

171.5

151.7

Non-controlling interest in consolidated subsidiaries

0.0

171.5

151.7

Non-Guarantor Subsidiaries [Member]

172.8

153.0

Condensed Financial Statements, Captions [Line Items]

274.8

265.4

268.1

348.3

348.6

231.0

239.7

0.0

312.4

392.5

578.4

599.3

17.2

27.2

101.1

114.1

8.2

4.5

1,292.1

1,486.2

830.9

854.5

8.5

34.2

35.7

154.7

215.0

0.0

827.3

846.9

3,149.2

3,472.5

255.4

418.9

172.7

176.3

4.9

7.6

0.1

100.3

128.3

0.1

33.6

74.4

113.4

0.0

607.9

878.2

40.1

58.6

204.4

233.1

20.5

12.0

156.0

194.1

1,028.9

1,376.0

201.6

146.9

1,402.9

1,359.2

(34.6)

(39.2)

550.4

629.6

Total ON Semiconductor Corporation stockholders’ equity

0.0

2,120.3

2,096.5

Non-controlling interest in consolidated subsidiaries

0.0

2,120.3

2,096.5

Condensed Financial Statements, Captions [Line Items]

3,149.2

3,472.5

Eliminations [Member]

0.0

$ 0.0

0.0

$ 0.0

0.0

0.0

(31.2)

1.9

(20.5)

(30.6)

0.0

0.0

(51.7)

(28.7)

(2.4)

(2.5)

22.7

0.0

0.0

(25.9)

(30.1)

(361.8)

(399.9)

(3,968.9)

(4,169.5)

(4,388.0)

(4,630.7)

0.0

1.7

0.0

0.0

0.0

22.8

0.0

0.0

(20.5)

(30.6)

4.0

(28.9)

0.0

0.0

0.0

(156.3)

(194.4)

(152.3)

(223.3)

(252.8)

(198.1)

(4,211.4)

(4,308.8)

75.6

85.9

123.3

(11.7)

Total ON Semiconductor Corporation stockholders’ equity

0.0

(4,265.3)

(4,432.7)

Non-controlling interest in consolidated subsidiaries

29.6

25.3

(4,235.7)

(4,407.4)

$ (4,388.0)

$ (4,630.7)

[1]	Included in other current assets are $1.0 million of fixed assets that are held-for-sale as of December 31, 2012.
[2]	Included in property, plant and equipment are $8.3 million of fixed assets that are held-for-sale as of December 31, 2012.

Guarantor And Non-Guarantor Statements (Notes To Consolidated Statement Of Operations) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Revenues	$ 680.2	$ 725.5	$ 744.8	$ 744.4	$ 767.9	$ 898.0	$ 905.8	$ 870.6	$ 2,894.9	$ 3,442.3	$ 2,313.4
Cost of revenues									1,943.0	2,433.5	1,357.4
Gross profit	210.4	238.0	258.3	245.2	239.2	261.1	266.1	242.4	951.9	1,008.8	956.0
Operating expenses:
Research and development									367.5	362.5	248.0
Selling and Marketing Expense									180.9	195.1	145.6
General and administrative									160.6	192.4	129.9
Amortization of acquisition-related intangible assets									44.4	42.7	31.7
Restructuring, asset impairments and other, net									165.3	102.7	10.5
Goodwill and intangible asset impairment									49.5	0.0	16.1
Total operating expenses									968.2	895.4	581.8
Operating income (loss)									(16.3)	113.4	374.2
Other Income and Expenses [Abstract]
Interest Expense									(56.1)	(68.9)	(61.4)
Interest income									1.5	1.1	0.5
Other									5.8	(8.9)	(6.9)
Loss on debt repurchase and exchange									(7.8)	(23.2)	(0.7)
Gain on SANYO Semiconductor acquisition									0.0	24.3	0.0
Equity in earnings									0.0	0.0	0.0
Other income (expenses), net									(56.6)	(75.6)	(68.5)
Income (loss) before income taxes									(72.9)	37.8	305.7
Income tax provision									(13.4)	(22.9)	(12.8)
Net income (loss)									(86.3)	14.9	292.9
Net Income (Loss) Attributable to Noncontrolling Interest									(4.3)	(3.3)	(2.4)
Net income (loss) attributable to ON Semiconductor Corporation	$ (138.2)	$ 12.5	$ 6.9	$ 28.2	$ (8.8)	$ (49.4)	$ 34.3	$ 35.5	(90.6)	11.6	290.5
Comprehensive income (loss) attributable to ON Semiconductor Corporation									(85.0)	24.0	296.3
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues									0.0	0.0	0.0
Cost of revenues									0.0	0.0	0.0
Gross profit									0.0	0.0	0.0
Operating expenses:
Research and development									0.0	0.0	0.0
Selling and Marketing Expense									0.0	0.0	0.0
General and administrative									0.0	0.0	0.0
Amortization of acquisition-related intangible assets									0.0	0.0	0.0
Restructuring, asset impairments and other, net									0.0	0.0	0.0
Goodwill and intangible asset impairment									0.0	0.0	0.0
Total operating expenses									0.0	0.0	0.0
Operating income (loss)									0.0	0.0	0.0
Other Income and Expenses [Abstract]
Interest Expense									(38.0)	(50.8)	(50.8)
Interest income									0.0	0.0	0.0
Other									0.0	0.0	0.0
Loss on debt repurchase and exchange									(7.8)	(23.2)	0.1
Gain on SANYO Semiconductor acquisition									0.0	(0.1)
Equity in earnings									(44.8)	85.7	341.2
Other income (expenses), net									(90.6)	11.6	290.5
Income (loss) before income taxes									(90.6)	11.6	290.5
Income tax provision									0.0	0.0	0.0
Net income (loss)									(90.6)	11.6	290.5
Net Income (Loss) Attributable to Noncontrolling Interest									0.0	0.0	0.0
Net income (loss) attributable to ON Semiconductor Corporation									(90.6)	11.6	290.5
Comprehensive income (loss) attributable to ON Semiconductor Corporation									(85.0)	24.0	296.3
SCI LLC [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues									732.2	788.9	632.4
Cost of revenues									468.1	531.5	495.4
Gross profit									264.1	257.4	137.0
Operating expenses:
Research and development									180.3	167.6	12.1
Selling and Marketing Expense									68.2	70.4	67.7
General and administrative									5.0	84.0	19.5
Amortization of acquisition-related intangible assets									18.1	18.0	17.1
Restructuring, asset impairments and other, net									3.3	3.4	7.1
Goodwill and intangible asset impairment									20.1	0.0	0.0
Total operating expenses									295.0	343.4	123.5
Operating income (loss)									(30.9)	(86.0)	13.5
Other Income and Expenses [Abstract]
Interest Expense									(9.0)	(8.5)	(6.6)
Interest income									0.8	0.4	0.2
Other									11.7	(3.1)	3.2
Loss on debt repurchase and exchange									0.0	0.0	(0.8)
Gain on SANYO Semiconductor acquisition									0.0	24.4
Equity in earnings									(25.6)	151.6	735.3
Other income (expenses), net									(22.1)	164.8	731.3
Income (loss) before income taxes									(53.0)	78.8	744.8
Income tax provision									(1.8)	1.5	3.7
Net income (loss)									(54.8)	80.3	748.5
Net Income (Loss) Attributable to Noncontrolling Interest									0.0	0.0	0.0
Net income (loss) attributable to ON Semiconductor Corporation									(54.8)	80.3	748.5
Comprehensive income (loss) attributable to ON Semiconductor Corporation									(49.2)	92.6	754.2
Other Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues									12.9	13.9	14.0
Cost of revenues									0.6	0.8	1.8
Gross profit									12.3	13.1	12.2
Operating expenses:
Research and development									10.3	10.7	9.8
Selling and Marketing Expense									0.8	1.0	0.9
General and administrative									0.6	0.7	0.8
Amortization of acquisition-related intangible assets									0.0	0.0	0.0
Restructuring, asset impairments and other, net									0.1	0.0	0.0
Goodwill and intangible asset impairment									0.0	0.0	0.0
Total operating expenses									11.8	12.4	11.5
Operating income (loss)									0.5	0.7	0.7
Other Income and Expenses [Abstract]
Interest Expense									0.0	0.0	0.0
Interest income									0.0	0.0	0.0
Other									0.0	0.0	0.0
Loss on debt repurchase and exchange									0.0	0.0	0.0
Gain on SANYO Semiconductor acquisition									0.0	0.0
Equity in earnings									10.0	7.7	5.5
Other income (expenses), net									10.0	7.7	5.5
Income (loss) before income taxes									10.5	8.4	6.2
Income tax provision									0.0	0.0	0.0
Net income (loss)									10.5	8.4	6.2
Net Income (Loss) Attributable to Noncontrolling Interest									0.0	0.0	0.0
Net income (loss) attributable to ON Semiconductor Corporation									10.5	8.4	6.2
Comprehensive income (loss) attributable to ON Semiconductor Corporation									10.5	8.4	6.2
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues									3,760.9	3,985.7	2,850.7
Cost of revenues									3,052.3	3,236.4	2,051.6
Gross profit									708.6	749.3	799.1
Operating expenses:
Research and development									176.9	184.2	226.1
Selling and Marketing Expense									111.9	123.7	77.0
General and administrative									155.0	107.7	109.6
Amortization of acquisition-related intangible assets									30.5	28.8	18.8
Restructuring, asset impairments and other, net									161.9	99.3	3.4
Goodwill and intangible asset impairment									29.4	0.0	16.1
Total operating expenses									665.6	543.7	451.0
Operating income (loss)									43.0	205.6	348.1
Other Income and Expenses [Abstract]
Interest Expense									(9.1)	(9.6)	(4.0)
Interest income									0.7	0.7	0.3
Other									(5.9)	(5.8)	(10.1)
Loss on debt repurchase and exchange									0.0	0.0	0.0
Gain on SANYO Semiconductor acquisition									0.0	0.0
Equity in earnings									0.0	0.0	0.0
Other income (expenses), net									(14.3)	(14.7)	(13.8)
Income (loss) before income taxes									28.7	190.9	334.3
Income tax provision									(11.6)	(24.4)	(16.5)
Net income (loss)									17.1	166.5	317.8
Net Income (Loss) Attributable to Noncontrolling Interest									0.0	0.0	0.0
Net income (loss) attributable to ON Semiconductor Corporation									17.1	166.5	317.8
Comprehensive income (loss) attributable to ON Semiconductor Corporation									21.4	178.9	323.6
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues									(1,611.1)	(1,346.2)	(1,183.7)
Cost of revenues									(1,578.0)	(1,335.2)	(1,191.4)
Gross profit									(33.1)	(11.0)	7.7
Operating expenses:
Research and development									0.0	0.0	0.0
Selling and Marketing Expense									0.0	0.0	0.0
General and administrative									0.0	0.0	0.0
Amortization of acquisition-related intangible assets									(4.2)	(4.1)	(4.2)
Restructuring, asset impairments and other, net									0.0	0.0	0.0
Goodwill and intangible asset impairment									0.0	0.0	0.0
Total operating expenses									(4.2)	(4.1)	(4.2)
Operating income (loss)									(28.9)	(6.9)	11.9
Other Income and Expenses [Abstract]
Interest Expense									0.0	0.0	0.0
Interest income									0.0	0.0	0.0
Other									0.0	0.0	0.0
Loss on debt repurchase and exchange									0.0	0.0	0.0
Gain on SANYO Semiconductor acquisition									0.0	0.0
Equity in earnings									60.4	(245.0)	(1,082.0)
Other income (expenses), net									60.4	(245.0)	(1,082.0)
Income (loss) before income taxes									31.5	(251.9)	(1,070.1)
Income tax provision									0.0	0.0	0.0
Net income (loss)									31.5	(251.9)	(1,070.1)
Net Income (Loss) Attributable to Noncontrolling Interest									(4.3)	(3.3)	(2.4)
Net income (loss) attributable to ON Semiconductor Corporation									27.2	(255.2)	(1,072.5)
Comprehensive income (loss) attributable to ON Semiconductor Corporation									$ 17.3	$ (279.9)	$ (1,084.0)

Guarantor And Non-Guarantor Statements Guarantor And Non-Guarantor Statements (Notes To Consolidated Statement Of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 30, 2012	Jun. 29, 2012	Sep. 28, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 68.4	$ 127.5	$ 139.4	$ 276.0	$ 545.5	$ 551.8
Cash flows from investing activities:
Purchases of property, plant and equipment	(50.4)	(114.7)	(198.8)	(256.3)	(316.4)	(188.9)
Proceeds from sales of property, plant and equipment	1.9	1.9	5.1	6.2	3.3	37.1
Deposits utilized for purchases of property, plant and equipment	(9.6)	(2.5)	1.6	1.4	0.5	(2.2)
Recovery from insurance on property, plant and equipment	11.5	11.5	11.5	11.5	13.3	0.0
Purchase of businesses, net of cash acquired				0.0	(17.9)	(91.0)
Proceeds from held-to maturity securities	99.7	232.6	288.7	377.6	122.2	45.5
Purchase of held-to-maturity securities	(163.3)	(222.6)	(261.7)	(273.8)	(370.8)	0.0
Change in restricted cash				0.0	142.1	(136.2)
Contribution from (to) subsidiaries	0.0	0.0	0.0	0.0	0.0	0.0
Net cash used in investing activities	(110.2)	(93.8)	(153.6)	(133.4)	(423.7)	(335.7)
Cash flows from financing activities:
Intercompany loans	0.0	0.0	0.0	0.0	0.0	0.0
Intercompany loan repayments	0.0	0.0	0.0	0.0	0.0	0.0
Payments from/(to) parent	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from issuance of common stock under the employee stock purchase plan	0.0	2.3	4.3	8.3	8.1	7.0
Proceeds from exercise of stock options	4.8	5.3	6.0	9.4	59.4	23.3
Payments of tax withholding for restricted shares	(5.3)	(8.3)	(8.8)	(9.6)	(19.3)	(15.0)
Repurchase of common stock	0.0	0.0	(22.5)	(55.5)	0.0	0.0
Proceeds from debt issuance	2.0	2.0	11.1	23.6	69.0	152.0
Payment of capital leases obligations	(11.4)	(21.2)	(30.6)	(40.8)	(39.0)	(32.3)
Repayment of long-term debt	(15.6)	(146.5)	(173.3)	(232.5)	(159.5)	(254.4)
Payments made in connection with repurchase or exchange of convertible notes	0.0	0.0	(2.3)	(2.6)	(15.9)
Net cash used in financing activities	(25.5)	(166.4)	(216.1)	(299.7)	(97.2)	(119.4)
Effect of exchange rate changes on cash and cash equivalents	(5.5)	(2.4)	(1.2)	(8.9)	5.0	0.9
Net increase (decrease) in cash and cash equivalents	(72.8)	(135.1)	(231.5)	(166.0)	29.6	97.6
Cash and cash equivalents, beginning of period	652.9	652.9	652.9	652.9	623.3	525.7
Cash and cash equivalents, end of period	580.1	517.8	421.4	486.9	652.9	623.3
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0.0	0.0	0.0	0.0	0.0	0.0
Cash flows from investing activities:
Purchases of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from sales of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Deposits utilized for purchases of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Recovery from insurance on property, plant and equipment	0.0	0.0	0.0	0.0	0.0
Purchase of businesses, net of cash acquired					0.0	0.0
Proceeds from held-to maturity securities	0.0	0.0	0.0	0.0	0.0	0.0
Purchase of held-to-maturity securities	0.0	0.0	0.0	0.0	0.0
Change in restricted cash					0.0	0.0
Contribution from (to) subsidiaries	0.5	96.9	119.5	167.8	23.9	(12.1)
Net cash used in investing activities	0.5	96.9	119.5	167.8	23.9	(12.1)
Cash flows from financing activities:
Intercompany loans	0.0	0.0	0.0	0.0	0.0	0.0
Intercompany loan repayments	0.0	0.0	0.0	0.0	0.0	0.0
Payments from/(to) parent	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from issuance of common stock under the employee stock purchase plan	0.0	2.3	4.3	8.3	8.1	7.0
Proceeds from exercise of stock options	4.8	5.3	6.0	9.4	59.4	23.3
Payments of tax withholding for restricted shares	(5.3)	(8.3)	(8.8)	(9.6)	(19.3)	(15.0)
Repurchase of common stock	0.0	0.0	(22.5)	(55.5)
Proceeds from debt issuance				0.0	0.0
Payment of capital leases obligations	0.0	0.0	0.0	0.0	0.0	0.0
Repayment of long-term debt	0.0	(96.2)	(96.2)	(117.8)	(56.2)	(3.2)
Payments made in connection with repurchase or exchange of convertible notes	0.0	0.0	(2.3)	(2.6)	(15.9)
Net cash used in financing activities	(0.5)	(96.9)	(119.5)	(167.8)	(23.9)	12.1
Effect of exchange rate changes on cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0
Net increase (decrease) in cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents, beginning of period	0.0	0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents, end of period	0.0	0.0	0.0	0.0	0.0	0.0
SCI LLC [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(31.3)	90.9	(34.1)	45.5	0.4	384.4
Cash flows from investing activities:
Purchases of property, plant and equipment	(11.2)	(38.6)	(49.7)	(55.0)	(69.0)	(59.6)
Proceeds from sales of property, plant and equipment	0.0	0.0	0.0	0.1	0.1	37.1
Deposits utilized for purchases of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Recovery from insurance on property, plant and equipment	0.0	0.0	0.0	0.0	0.0
Purchase of businesses, net of cash acquired					24.3	0.0
Proceeds from held-to maturity securities	99.7	232.6	288.7	377.6	122.2	0.0
Purchase of held-to-maturity securities	(163.3)	(222.6)	(261.7)	(273.8)	(370.8)
Change in restricted cash					142.1	(142.1)
Contribution from (to) subsidiaries	0.0	0.0	(7.9)	(7.9)	234.5	50.0
Net cash used in investing activities	(74.8)	(28.6)	(30.6)	41.0	83.4	(114.6)
Cash flows from financing activities:
Intercompany loans	(23.3)	(180.6)	(256.4)	(524.0)	(289.3)	(666.9)
Intercompany loan repayments	70.2	188.2	323.6	562.0	182.2	672.7
Payments from/(to) parent	(0.5)	(103.5)	(126.1)	(180.9)	(37.7)	(2.4)
Proceeds from issuance of common stock under the employee stock purchase plan	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from exercise of stock options	0.0	0.0	0.0	0.0	0.0	0.0
Payments of tax withholding for restricted shares	0.0	0.0	0.0	0.0	0.0	0.0
Repurchase of common stock	0.0	0.0	0.0	0.0
Proceeds from debt issuance			6.5	6.5	12.2	33.0
Payment of capital leases obligations	(11.0)	(19.1)	(27.8)	(37.4)	(36.4)	(29.8)
Repayment of long-term debt	(1.1)	(2.1)	(3.6)	(5.1)	(2.6)	(170.1)
Payments made in connection with repurchase or exchange of convertible notes	0.0	0.0	0.0	0.0	0.0
Net cash used in financing activities	34.3	(117.1)	(83.8)	(178.9)	(171.6)	(163.5)
Effect of exchange rate changes on cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0
Net increase (decrease) in cash and cash equivalents	(71.8)	(54.8)	(148.5)	(92.4)	(87.8)	106.3
Cash and cash equivalents, beginning of period	304.5	304.5	304.5	304.5	392.3	286.0
Cash and cash equivalents, end of period	232.7	249.7	156.0	212.1	304.5	392.3
Other Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(0.2)	0.9	0.9	0.9	0.0	0.2
Cash flows from investing activities:
Purchases of property, plant and equipment	(0.5)	(0.7)	(0.7)	(0.7)	(0.2)	(0.2)
Proceeds from sales of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Deposits utilized for purchases of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Recovery from insurance on property, plant and equipment	0.0	0.0	0.0	0.0	0.0
Purchase of businesses, net of cash acquired					0.0	0.0
Proceeds from held-to maturity securities	0.0	0.0	0.0	0.0	0.0	0.0
Purchase of held-to-maturity securities	0.0	0.0	0.0	0.0	0.0
Change in restricted cash					0.0	0.0
Contribution from (to) subsidiaries	0.0	0.0	0.0	0.0	0.0	0.0
Net cash used in investing activities	(0.5)	(0.7)	(0.7)	(0.7)	(0.2)	(0.2)
Cash flows from financing activities:
Intercompany loans	0.0	0.0	0.0	0.0	0.0	0.0
Intercompany loan repayments	0.0	0.0	0.0	0.0	0.0	0.0
Payments from/(to) parent	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from issuance of common stock under the employee stock purchase plan	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from exercise of stock options	0.0	0.0	0.0	0.0	0.0	0.0
Payments of tax withholding for restricted shares	0.0	0.0	0.0	0.0	0.0	0.0
Repurchase of common stock	0.0	0.0	0.0	0.0
Proceeds from debt issuance				0.0	0.0
Payment of capital leases obligations	0.0	0.0	0.0	0.0	0.0	0.0
Repayment of long-term debt	0.0	0.0	0.0	0.0	0.0
Payments made in connection with repurchase or exchange of convertible notes	0.0	0.0	0.0	0.0	0.0
Net cash used in financing activities	0.0	0.0	0.0	0.0	0.0	0.0
Effect of exchange rate changes on cash and cash equivalents		0.0	0.0	0.0	0.0	0.0
Net increase (decrease) in cash and cash equivalents	(0.7)	0.2	0.2	0.2	(0.2)	0.0
Cash and cash equivalents, beginning of period	(0.2)	(0.2)	(0.2)	(0.2)	0.0	0.0
Cash and cash equivalents, end of period	(0.9)	0.0	0.0	0.0	(0.2)	0.0
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	99.9	42.3	179.2	242.7	558.9	181.7
Cash flows from investing activities:
Purchases of property, plant and equipment	(38.7)	(75.4)	(148.4)	(200.6)	(247.2)	(129.1)
Proceeds from sales of property, plant and equipment	1.9	1.9	5.1	6.1	3.2	0.0
Deposits utilized for purchases of property, plant and equipment	(9.6)	(2.5)	1.6	1.4	0.5	(2.2)
Recovery from insurance on property, plant and equipment	11.5	11.5	11.5	11.5	13.3
Purchase of businesses, net of cash acquired					(42.2)	(91.0)
Proceeds from held-to maturity securities	0.0	0.0	0.0	0.0	0.0	45.5
Purchase of held-to-maturity securities	0.0	0.0	0.0	0.0	0.0
Change in restricted cash					0.0	5.9
Contribution from (to) subsidiaries	0.0	0.0	0.0	0.0	0.0	0.0
Net cash used in investing activities	(34.9)	(64.5)	(130.2)	(181.6)	(272.4)	(170.9)
Cash flows from financing activities:
Intercompany loans	23.3	180.6	256.4	524.0	289.3	666.9
Intercompany loan repayments	(70.2)	(188.2)	(323.6)	(562.0)	(182.2)	(672.7)
Payments from/(to) parent	0.0	0.0	7.9	7.9	(234.5)	(50.0)
Proceeds from issuance of common stock under the employee stock purchase plan	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from exercise of stock options	0.0	0.0	0.0	0.0	0.0	0.0
Payments of tax withholding for restricted shares	0.0	0.0	0.0	0.0	0.0	0.0
Repurchase of common stock	0.0	0.0	0.0	0.0
Proceeds from debt issuance	2.0	2.0	4.6	17.1	56.8	119.0
Payment of capital leases obligations	(0.4)	(2.1)	(2.8)	(3.4)	(2.6)	(2.5)
Repayment of long-term debt	(14.5)	(48.2)	(73.5)	(109.6)	(100.7)	(81.1)
Payments made in connection with repurchase or exchange of convertible notes	0.0	0.0	0.0	0.0	0.0
Net cash used in financing activities	(59.8)	(55.9)	(131.0)	(126.0)	(173.9)	(20.4)
Effect of exchange rate changes on cash and cash equivalents	(5.5)	(2.4)	(1.2)	(8.9)	5.0	0.9
Net increase (decrease) in cash and cash equivalents	(0.3)	(80.5)	(83.2)	(73.8)	117.6	(8.7)
Cash and cash equivalents, beginning of period	348.6	348.6	348.6	348.6	231.0	239.7
Cash and cash equivalents, end of period	348.3	268.1	265.4	274.8	348.6	231.0
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0.0	(6.6)	(6.6)	(13.1)	(13.8)	(14.5)
Cash flows from investing activities:
Purchases of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from sales of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Deposits utilized for purchases of property, plant and equipment	0.0	0.0	0.0	0.0	0.0	0.0
Recovery from insurance on property, plant and equipment	0.0	0.0	0.0	0.0	0.0
Purchase of businesses, net of cash acquired					0.0	0.0
Proceeds from held-to maturity securities	0.0	0.0	0.0	0.0	0.0	0.0
Purchase of held-to-maturity securities	0.0	0.0	0.0	0.0	0.0
Change in restricted cash					0.0	0.0
Contribution from (to) subsidiaries	(0.5)	(96.9)	(111.6)	(159.9)	(258.4)	(37.9)
Net cash used in investing activities	(0.5)	(96.9)	(111.6)	(159.9)	(258.4)	(37.9)
Cash flows from financing activities:
Intercompany loans	0.0	0.0	0.0	0.0	0.0	0.0
Intercompany loan repayments	0.0	0.0	0.0	0.0	0.0	0.0
Payments from/(to) parent	0.5	103.5	118.2	173.0	272.2	52.4
Proceeds from issuance of common stock under the employee stock purchase plan	0.0	0.0	0.0	0.0	0.0	0.0
Proceeds from exercise of stock options	0.0	0.0	0.0	0.0	0.0	0.0
Payments of tax withholding for restricted shares	0.0	0.0	0.0	0.0	0.0	0.0
Repurchase of common stock	0.0	0.0	0.0	0.0
Proceeds from debt issuance				0.0	0.0
Payment of capital leases obligations	0.0	0.0	0.0	0.0	0.0	0.0
Repayment of long-term debt	0.0	0.0	0.0	0.0	0.0	0.0
Payments made in connection with repurchase or exchange of convertible notes	0.0	0.0	0.0	0.0	0.0
Net cash used in financing activities	0.5	103.5	118.2	173.0	272.2	52.4
Effect of exchange rate changes on cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0
Net increase (decrease) in cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents, beginning of period	0.0	0.0	0.0	0.0	0.0	0.0
Cash and cash equivalents, end of period	$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0

Subsequent Events (Details) - Subsequent Event [Member] $ in Millions	1 Months Ended
	Jan. 31, 2013 USD ($) employees
Minimum [Member]
Subsequent Event [Line Items]
Number of employees to be terminiated \| employees	500
Additional employee separation charges expected to incur \| $	$ 40.0
Maximum [Member]
Subsequent Event [Line Items]
Number of employees to be terminiated \| employees	600
Additional employee separation charges expected to incur \| $	$ 50.0

Supplementary Data Selected Quarterly Data (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 680.2	$ 725.5	$ 744.8	$ 744.4	$ 767.9	$ 898.0	$ 905.8	$ 870.6	$ 2,894.9	$ 3,442.3	$ 2,313.4
Gross Profit	210.4	238.0	258.3	245.2	239.2	261.1	266.1	242.4	951.9	1,008.8	956.0
Net income (loss) attributable to ON Semiconductor Corporation	$ (138.2)	$ 12.5	$ 6.9	$ 28.2	$ (8.8)	$ (49.4)	$ 34.3	$ 35.5	$ (90.6)	$ 11.6	$ 290.5
Diluted net income (loss) per common share attributable to ON Semiconductor Corporation	$ (0.31)	$ 0.03	$ 0.02	$ 0.06	$ (0.02)	$ (0.11)	$ 0.07	$ 0.08	$ (0.20)	$ 0.03	$ 0.65

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.