Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting [Abstract]
Segment EBITDA	$ 159	$ 213
Corporate expense and other items, net	(1)	(3)
Depreciation	(42)	(48)
Amortization of intangibles	(22)	(22)
Restructuring	(2)	(5)
Strategic transaction and other expenses	(3)	(4)
Impairment and loss on sale of assets		(3)
Stock compensation expense	(5)	(7)
Foreign exchange on intercompany loans and market value adjustments on forwards	1	1
Interest expense	(21)	(21)
Interest income	7	6
Income from continuing operations before income taxes	71	107
Income tax expense	27	37
Equity in earnings of affiliates	4	4
Income from continuing operations	48	74
Income (loss) from discontinued operations	2	(1)
Net income	$ 50	$ 73