Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income components:
United States	$ (466)	$ (395)	$ (306)
International	148	119	98
Loss from continuing operations before income tax expense (benefit)	(318)	(276)	(208)
Current income tax expense (benefit):
United States - federal	(80)	(61)	9
United States - state and local	(12)	0	(2)
International	49	28	18
Total current income tax provision	(43)	(33)	(25)
Deferred income tax expense (benefit):
United States - federal	319	(100)	(115)
United States - state and local	(15)	(15)	(9)
International	(1)	4	2
Total deferred income tax provision	303	(111)	(122)
Total income tax expense (benefit)	$ 260	$ (144)	$ (97)
Effective income tax rate	(81.80%)	52.20%	46.60%