Fair Value of Financial Investments and Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Financial Investments Included in Other Assets

Financial investments included in other assets were as follows, in millions:

	At December 31
	2012		2011
Auction rate securities	$	22	$	22
Total recurring investments		22		22
Private equity funds		69		86
Other investments		4		4
Total non-recurring investments		73		90
Total	$	95	$	112

Company's Investments in Available-for-Sale Securities

The Company’s investments in available-for-sale securities at December 31, 2012 and 2011 were as follows, in millions:

			Pre-tax
	Cost Basis		Unrealized Gains		Unrealized Losses		Recorded Basis
December 31, 2012	$	19	$	3	$	—	$	22
December 31, 2011	$	19	$	3	$	—	$	22

Recurring Fair Value Measurements

Financial investments and (liabilities) measured at fair value on a recurring basis at each reporting period and the amounts for each level within the fair value hierarchy were as follows, in millions:

			Fair Value Measurements Using
	Dec. 31, 2012		Quoted Market Prices (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Auction rate securities	$	22	$	—	$	—	$	22
Total	$	22	$	—	$	—	$	22
			Fair Value Measurements Using
	Dec. 31, 2011		Quoted Market Prices (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Auction rate securities	$	22	$	—	$	—	$	22
Total	$	22	$	—	$	—	$	22

Changes in Level 3 Financial Investments Measured at Fair Value on Recurring Basis

The following table summarizes the changes in Level 3 financial investments measured at fair value on a recurring basis, in millions:

	Auction Rate Securities December 31
	2012		2011
Fair value January 1	$	22	$	22
Total losses included in earnings
Unrealized losses		—		—
Purchases, issuances, settlements		—		—
Transfers from Level 3 to Level 2		—		—
Fair value at December 31	$	22	$	22

Non-Recurring Fair Value Measurements

Financial investments measured at fair value on a non-recurring basis during 2012 and the amounts for each level within the fair value hierarchy were as follows, in millions:

			Fair Value Measurements Using
	Dec. 31, 2012		Quoted Market Prices (Level 1)		Significant Other Observable Unobservable Inputs (Level 2)		Significant Total Inputs (Level 3)		Gains (Losses)
Private equity funds	$	2	$	—	$	—	$	2	$	(2	)
	$	2	$	—	$	—	$	2	$	(2	)

Income from Financial Investments, Net, Included in Other, Net, within Other Income (Expense), Net, and Impairment Charges for Financial Investments

Income from financial investments, net, included in other, net, within other income (expense), net, and impairment charges for financial investments were as follows, in millions:

	2012			2011		2010
Realized gains from marketable securities	$	—		$	41	$	10
Realized losses from marketable securities		—			—		(8	)
Income from other investments, net		24			32		7
Income from financial investments, net	$	24		$	73	$	9
Impairment charges:
Asahi Tec	$	—		$	—	$	(28	)
Private equity funds		(2	)		—		(4	)
Other private investments		—			—		(2	)
Total impairment charges	$	(2	)	$	—	$	(34	)