Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 85	$ 82	$ 71
Increases related to prior year tax positions	28	26	24
Decreases related to prior year tax positions	(12)	(1)	0
Settlements	(5)	(15)	(11)
Foreign currency impact	(7)	(7)	(2)
Increases related to current year tax positions	3	0	0
Lapse of statute of limitations	(2)	0	0
Balance at end of period	$ 90	$ 85	$ 82