Goodwill and Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible Assets With Indefinite Lives Gross	$ 127	[1]	$ 128	[1]
Intangible Assets With Indefinite Lives Accumulated Amortization	(6)	[1]	(6)	[1]
Intangible Assets WIth Indefinite Lives Net	121		122
Intangible Assets Gross	163	[1]	167	[1]
Intangible Assets Accumulated Amortization	(25)	[1]	(29)	[1]
Intangible Assets	138		138
Amortization of Intangible Assets	2		3		3
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Intangible Assets, Amortization Expense, Next Twelve Months	1
Intangible Assets, Amortization Expense, Year Two	1
Intangible Assets, Amortization Expense, Year Three	1
Intangible Assets, Amortization Expense, Year Four	1
Intangible Assets, Amortization Expense, Year Five	1
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	30 years
Trademarks and Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	15	[1]	17	[1]
Finite-Lived Intangible Assets, Accumulated Amortization	(10)	[1]	(10)	[1]
Finite-Lived Intangible Assets, Net	5		7
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	21	[1]	22	[1]
Finite-Lived Intangible Assets, Accumulated Amortization	(9)	[1]	(13)	[1]
Finite-Lived Intangible Assets, Net	$ 12		$ 9

[1] Includes impact of foreign currency translation.