Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Intangible assets with indefinite lives, gross	$ 124	$ 124
Intangible assets with indefinite lives, accumulated amortization	(6)	(6)
Intangible assets with indefinite lives, net	118	118
Intangible assets, gross	173	170
Intangible assets, accumulated amortization	(36)	(34)
Intangible assets, net	137	136
Trademarks and Patents
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	24	23
Finite-lived intangible assets, accumulated amortization	(19)	(19)
Finite-lived intangible assets, net	5	4
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	25	23
Finite-lived intangible assets, accumulated amortization	(11)	(9)
Finite-lived intangible assets, net	$ 14	$ 14