Goodwill and Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Intangible Assets With Indefinite Lives Gross	$ 128	[1]	$ 128	[1]
Intangible Assets With Indefinite Lives Accumulated Amortization	(6)	[1]	(6)	[1]
Intangible Assets WIth Indefinite Lives Net	122		122
Intangible Assets Gross	169	[1]	183	[1]
Intangible Assets Accumulated Amortization	(29)	[1]	(26)	[1]
Intangible Assets	140		157
Amortization of Intangible Assets	3		4		4
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Intangible Assets, Amortization Expense, Next Twelve Months	4
Intangible Assets, Amortization Expense, Year Two	3
Intangible Assets, Amortization Expense, Year Three	3
Intangible Assets, Amortization Expense, Year Four	1
Intangible Assets, Amortization Expense, Year Five	1
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	17 years
Trademarks and Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	20	[1]	22	[1]
Finite-Lived Intangible Assets, Accumulated Amortization	(12)	[1]	(12)	[1]
Finite-Lived Intangible Assets, Net	8		10
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	21	[1]	33	[1]
Finite-Lived Intangible Assets, Accumulated Amortization	(11)	[1]	(8)	[1]
Finite-Lived Intangible Assets, Net	$ 10		$ 25

[1] Includes impact of foreign currency translation.