Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitment And Contingencies [Line Items]
Property, plant, or equipment held under lease agreements		$ 12	$ 18
Long-term operating lease commitments		153	171
Long-term operating lease commitments expiration		Expire at various dates during the next 30 years
Rent expense		54	51	60
Maximum commitment		18
Purchase commitment expiration		2015
Accrued legal fees		59	15
Award from legal dispute	59
Range of possible loss, minimum		0
Range of possible loss, maximum		$ 26

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Long Term Purchase Commitment Expiration Year

+ References

No definition available.

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- Definition

This commitment is to purchase a certain volume from the joint venture SSMC which is held together with TSMC.

+ References

No definition available.

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- Definition

Property, plant, or equipment held under lease agreements classified as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 45

-Paragraph 1

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 16

-Subparagraph a(i)

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- Definition

The amount of the provision for expected and allowed claims included in liabilities subject to compromise.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 852

-SubTopic 10

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 90-7

-Paragraph 26

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- Definition

Specifies the time period covered by the arrangement.

+ References

No definition available.

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- Definition

The estimated maximum amount of possible loss from the contingency.

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-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

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-Name FASB Interpretation (FIN)

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-Paragraph 9, 10, 11, 12

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The estimated minimum amount of possible loss from the contingency.

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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- Definition

Cash received for the settlement of litigation during the current period.

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