Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reconciliation of income taxes computed at the statutory U.S. federal income tax rate to the income tax expense reflected in the statement of income (loss)
Income tax expense (benefit) computed at the statutory U.S. federal income tax rate	$ 95	$ 46	$ (14)
Increases (reductions) in income tax expense resulting from:
Foreign income taxes at different rates	(14)	(16)	14
Taxes on repatriation of dividends	6	4	4
State and local taxes on income, net of U.S. federal income tax benefit	2	2	2
Changes in valuation allowance for tax loss carryforwards and credits	(11)	16	5
Foreign tax holidays	(4)	(5)	(3)
Investment and R&D tax credits	(4)	(2)	(5)
Foreign earnings subject to U.S. federal income tax	6	5	3
Adjustment of prior years taxes		4
Impact of foreign tax law changes		(1)	2
Tax contingencies	3	12	6
Goodwill Impairment	3
Other	6	4	(1)
Income tax expense	$ 88	$ 69	$ 13