Goodwill and Intangible Assets, Net (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, Gross	$ 78	$ 74
Definite-lived Intangible Assets, Accumulated Amortization	(67)	(63)
Definite-lived Intangible Assets, Net	11	11
Customer Lists [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, Gross	20	19
Definite-lived Intangible Assets, Accumulated Amortization	(17)	(16)
Definite-lived Intangible Assets, Net	3	3
Patents [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, Gross	20	20
Definite-lived Intangible Assets, Accumulated Amortization	(17)	(16)
Definite-lived Intangible Assets, Net	3	4
Trademarks [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, Gross	18	18
Definite-lived Intangible Assets, Accumulated Amortization	(15)	(14)
Definite-lived Intangible Assets, Net	3	4
Purchased and Licensed Technology [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, Gross	20	17
Definite-lived Intangible Assets, Accumulated Amortization	(18)	(17)
Definite-lived Intangible Assets, Net	$ 2	$ 0