Goodwill and Intangible Assets - Narratives (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets
Accumulated impairment loss			$ 46,600,000
Goodwill, impairment loss	$ 0	$ 0
Amortization of intangible assets	113,000,000	112,000,000	$ 110,000,000
Trade name
Finite-Lived Intangible Assets
Indefinite-lived intangible assets other than goodwill	$ 104,000,000	$ 150,000,000