Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2009	Dec. 31, 2011	Dec. 31, 2010
Net income tax benefit related to favorable IRS tax settlement		$ 82
Net operating loss carryforwards		251
Foreign earnings repatriated	787
Charge (Benefit) associated with repatriation	67	(7)	(7)
Reinvestment of future remittances of undistributed earnings of foreign subsidiaries		5,646
Unrecognized tax benefits, interest on income taxes expense		235	347
United States
Net operating loss carryforwards		116
Operating Loss Carryforwards, Expiration Dates		2011 and 2019
International [Member]
Net operating loss carryforwards		135
Operating Loss Carryforwards, Expiration Dates		2011 and 2031
Operating loss carryforwards, valuation allowance		$ 102