Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2012

Financial Instruments [Abstract]

Available-For-Sale Securities

	Quarter Ended
	March 31, 2012		December 31, 2011
	(In millions)
Fair Value
Classified as cash equivalents:
Money market funds	$	917	$	738
Commercial paper		125		1
Total classified as cash equivalents	$	1,042	$	739
Classified as current marketable securities:
Commercial paper	$	249	$	698
Time deposits		70		160
Auction rate securities		32		38
Total classified as current marketable securities	$	351	$	896
Classified as long-term marketable securities:
Money market funds	$	1	$	9
Corporate bonds		168		140
Total classified as long-term marketable securities	$	169	$	149
Classified as other assets:
Money market funds	$	10	$	10
Total classified as other assets	$	10	$	10

Schedule Of Financial Instruments Measured And Recorded At Fair Value On Recurring Basis

				Fair value measurement at reporting dates using
	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
	(In millions)
March 31, 2012
Assets
Classified as cash equivalents:
Money market funds	$	917		$	917	$	—		$	—
Commercial paper		125			—		125			—
Total classified as cash equivalents	$	1,042		$	917	$	125		$	—
Classified as current marketable securities:
Commercial paper	$	249		$	—	$	249		$	—
Time deposits		70			—		70			—
Auction rate securities		32			—		—			32
Total classified as current marketable securities	$	351		$	—	$	319		$	32
Classified as long-term marketable securities:
Money market funds	$	1		$	1	$	—		$	—
Corporate bonds		168			—		168			—
Total classified as long-term marketable securities	$	169		$	1	$	168		$	—
Classified as other assets:
Money market funds	$	10		$	10	$	—		$	—
Total classified as other assets	$	10		$	10	$	—		$	—
Classified as prepaid expenses and other current assets:
Foreign currency derivative contracts	$	1		$	—	$	1		$	—
Total classified as prepaid expenses and other current assets	$	1		$	—	$	1		$	—
Total assets measured at fair value	$	1,573		$	928	$	613		$	32
December 31, 2011
Assets
Classified as cash equivalents:
Money market funds	$	738		$	738	$	—		$	—
Commercial paper		1			—		1			—
Total classified as cash equivalents	$	739		$	738	$	1		$	—
Classified as current marketable securities:
Commercial paper	$	698		$	—	$	698		$	—
Time deposits		160			—		160			—
Auction rate securities		38			—		—			38
Total classified as current marketable securities	$	896		$	—	$	858		$	38
Classified as long-term marketable securities:
Money market funds	$	9		$	9	$	0		$	—
Corporate bonds		140			—		140			—
Total classified as long-term marketable securities	$	149		$	9	$	140		$	—
Classified as other assets:
Money market funds	$	10		$	10	$	—		$	—
Total classified as other assets	$	10		$	10	$	—		$	—
Total assets measured at fair value	$	1,794		$	757	$	999		$	38
Liabilities
Classified as accrued liabilities - Foreign currency derivative contracts	$	(2	)	$	—	$	(2	)	$	—
Total liabilities measured at fair value	$	(2	)	$	—	$	(2	)	$	—

Schedule Of Financial Instruments Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)

	Quarter Ended
	March 31, 2012			April 2, 2011
	Auction Rate Securities			Auction Rate Securities
	(In millions)
Beginning balance	$	38		$	57
Redemption at par		(6	)		—
Ending balance	$	32		$	57

Schedule Of Significant Inputs And Assumptions Used To Determine Fair Value Of Available-For-Sale Securities

	Quarter Ended
	March 31, 2012			December 31, 2011
Discount rate for periodic interest payments		1.05	%		1.13	%
Discount rate for principal repayments		1.79	%		1.93	%
Liquidity discount		0.90	%		0.90	%
Credit discount		2.00	%		2.00	%
Estimated period (years)		17			17

Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments Not Recorded At Fair Value

	March 31, 2012				December 31, 2011
	Carrying amount		Estimated Fair Value		Carrying amount		Estimated Fair Value
	(In millions)
Short-term debt (excluding capital leases)	$	485	$	492	$	485	$	490
Long-term debt (excluding capital leases)	$	1,508	$	1,719	$	1,505	$	1,619