Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting [Abstract]
Segment EBITDA	$ 198	$ 190	$ 574	$ 629
Corporate expense and other items, net		(1)	(3)	(8)
Depreciation	(41)	(46)	(123)	(140)
Amortization of intangibles	(22)	(22)	(65)	(66)
Restructuring	(8)	(6)	(14)	(30)
Strategic transaction expenses and other items		(1)	(6)	(6)
Write off of deferred financing costs			(2)
Recognition of unrealized gain on payment-in-kind note receivable			5
Impairment and loss on sale of assets				(6)
Stock compensation expense	(5)	(3)	(14)	(12)
Interest expense	(27)	(22)	(69)	(63)
Interest income	8	6	20	17
Income from continuing operations before income taxes	103	95	303	315
Income tax expense	34	33	96	97
Equity in earnings of affiliates	3	(2)	10	4
Income from continuing operations	72	60	217	222
Loss from discontinued operations	(1)	0	0	0
Net income	$ 71	$ 60	$ 217	$ 222