Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Income Tax Disclosure Details [Abstract]
Effective Income Tax Rate	(17.10%)	32.80%	19.70%	38.20%
Write Off Of Deferred Tax Assets			$ 3		$ 10
Write-off of deferred tax assets related to health care referom					9
Tax benefit related to foreign tax	27		27
Tax Benefit From Sale Of Leverage Lease Asset	34		34
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities			30
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities For Discontinued Operations			5
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	(400)		(400)
Income Loss From Release Of Reserves	$ (76)