Goodwill and Intangible Assets, Net Definite-lived and Indefinite-lived Intangible Assets Table (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Definite-lived intangible assets: [Abstract]
Gross carrying amount of definite-lived intangible assets	$ 674		$ 712
Accumulated amortization of definite-lived intangible assets	(272)		(273)
Net carrying amount of definite-lived intangible assets	402		439
Amortization of Intangible Assets	10	$ 12
Net carrying amount of indefinite-lived intangible assets	62		62
Intangible assets, net	464		501
Customer relationships
Definite-lived intangible assets: [Abstract]
Gross carrying amount of definite-lived intangible assets	396		396
Accumulated amortization of definite-lived intangible assets	(138)		(134)
Net carrying amount of definite-lived intangible assets	258		262
Other
Definite-lived intangible assets: [Abstract]
Gross carrying amount of definite-lived intangible assets	278		316
Accumulated amortization of definite-lived intangible assets	(134)		(139)
Net carrying amount of definite-lived intangible assets	144		$ 177
Automotive Segment
Definite-lived intangible assets: [Abstract]
Finite-lived Intangible Assets Acquired	$ 1