Goodwill and Intangible Assets (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Intangible assets with indefinite lives, gross	$ 128	$ 127
Intangible assets with indefinite lives, accumulated amortization	(6)	(6)
Intangible assets with indefinite lives, net	122	121
Intangible assets, gross	161	163
Intangible assets, accumulated amortization	(23)	(25)
Intangible assets, net	138	138
Amortization of intangible assets	1	2	$ 3
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2016	1
2017	1
2018	1
2019	1
2020	$ 1
Intangible asset weighted average remaining amortization period	29 years
Impairment of goodwill or intangible assets with indefinite lives	$ 0	0	$ 0
Trademarks and Patents
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	12	15
Finite-lived intangible assets, accumulated amortization	(8)	(10)
Finite-lived intangible assets, net	4	5
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	21	21
Finite-lived intangible assets, accumulated amortization	(9)	(9)
Finite-lived intangible assets, net	$ 12	$ 12