Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Provision (benefit) for income taxes consisted of
United States Federal income tax provision - Current	$ 202	$ 151	$ 39
United States Federal income tax provision - Deferred	(588)	(309)	(284)
Foreign income tax provision - Current	1,185	1,515	1,143
Foreign income tax provision - Deferred	(60)	(230)	(168)
Total Foreign Income Tax provision	1,125	1,285	975
Adjustment of deferred tax liability for foreign income tax rate change	29	0	0
Provision (benefit) for income taxes	785	1,173	715
Income (loss) before income taxes
Income (Loss) from Continuing Operations before Income Taxes, Domestic	211	(108)	(711)
Income (Loss) from Continuing Operations before Income Taxes, Foreign	2,250	3,419	2,233
Total income before income taxes	2,461	3,311	1,522
State [Member]
Provision (benefit) for income taxes consisted of
Provision (benefit) for income taxes	17	46	(15)
Federal and State [Member]
Provision (benefit) for income taxes consisted of
Provision (benefit) for income taxes	$ (369)	$ (112)	$ (260)