Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	$ (490)	$ (459)
Intangible Assets, Gross (Excluding Goodwill)	667	568
Intangible Assets, Net (Excluding Goodwill)	177	109
Trademarks and Trade Names [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	65	65
Used In Research And Development [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 20	20
Core Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	7 years
Finite-Lived Intangible Assets, Gross	$ 95	88
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	(88)	(83)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 7	5
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	15 years
Finite-Lived Intangible Assets, Gross	$ 19	6
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	(4)	(2)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 15	4
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	8 years
Finite-Lived Intangible Assets, Gross	$ 468	389
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	(398)	(374)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 70	$ 15