Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Sep. 30, 2012
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	$ (501,000,000)	$ (513,000,000)
Intangible Assets, Gross (Excluding Goodwill)	741,000,000	677,000,000
Intangible Assets, Net (Excluding Goodwill)	240,000,000	164,000,000
Trademarks and Trade Names [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Net	75,000,000	74,000,000
Used In Research And Development [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Net	0	0
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross		20,000,000	$ 20,000,000	$ 20,000,000
Indefinite-Lived Intangible Assets (Excluding Goodwill), Accumulated Impairment Loss		(20,000,000)
Core Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	8 years
Finite-Lived Intangible Assets, Gross	$ 133,000,000	107,000,000
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	(91,000,000)	(89,000,000)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 42,000,000	18,000,000
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	13 years
Finite-Lived Intangible Assets, Gross	$ 31,000,000	16,000,000
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	(5,000,000)	(4,000,000)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 26,000,000	12,000,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	9 years
Finite-Lived Intangible Assets, Gross	$ 502,000,000	460,000,000
Finite-Lived Intangible Assets, Accumulated Impairment and Amortization	(405,000,000)	(400,000,000)
Finite-Lived Intangible Assets, Net Carrying Amount	$ 97,000,000	$ 60,000,000