Impairment Charges for Financial Assets (Details 5) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Income from financial investments, net, included in other, net, within other income (expense), net, and impairment charges for financial investments
Realized gains from:	$ 33	$ 1	$ 50	$ 1
Impairment charge for financial investments	0	(33)	0	(33)
Trimas Corporation Common Stock [Member]
Income from financial investments, net, included in other, net, within other income (expense), net, and impairment charges for financial investments
Realized gains from:	27		41
Private Equity Funds [Member]
Income from financial investments, net, included in other, net, within other income (expense), net, and impairment charges for financial investments
Realized gains from:	6	1	9	1
Impairment charge for financial investments	0	3	0	3
Asahi Tec Corporation - preferred stock [Member]
Income from financial investments, net, included in other, net, within other income (expense), net, and impairment charges for financial investments
Impairment charge for financial investments	0	28	0	28
Other private investments [Member]
Income from financial investments, net, included in other, net, within other income (expense), net, and impairment charges for financial investments
Impairment charge for financial investments	$ 0	$ 2	$ 0	$ 2