Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended
	May 05, 2011	Jun. 30, 2011	May 05, 2011	Jun. 30, 2011
Operations Data For Discontinued Operations
Net revenue	$ 27		$ 76
Operating expenses	22		86
Operating income (loss) before income taxes	5		(10)
(Provision) benefit from income taxes	(1)		4
Income (loss) from discontinued operations, net of tax	4		(6)
Gain from disposal of discontinued operations, net of tax	312	312	312	312
Total income from discontinued operations, net of tax	$ 316		$ 306