Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Balance at beginning of period	$ 1,173	$ 1,185	$ 1,186
Foreign currency translation	(4)	(12)	(1)
Balance at end of period	1,169	1,173	1,185
North America
Goodwill [Roll Forward]
Balance at beginning of period	1,105	1,105	1,105
Foreign currency translation	0	0	0
Balance at end of period	1,105	1,105	1,105
International
Goodwill [Roll Forward]
Balance at beginning of period	68	80	81
Foreign currency translation	(4)	(12)	(1)
Balance at end of period	$ 64	$ 68	$ 80