Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 4,658	$ 4,092	$ 4,544	$ 3,773
Other comprehensive income/(loss), net of tax	(18)	10	42	107
Ending balance	4,580	4,352	4,580	4,352
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(704)	(633)	(764)	(730)
Other comprehensive income/(loss), net of tax	(18)	10	42	107
Ending balance	(722)	(623)	(722)	(623)
Derivatives Net Unrealized Gains/ (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			4	(15)
Other comprehensive income/(loss), net of tax			48	20
Ending balance	52	5	52	5
Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			5	(37)
Other comprehensive income/(loss), net of tax			45	17
Ending balance	50	(20)	50	(20)
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(756)	(655)
Other comprehensive income/(loss), net of tax			(52)	70
Ending balance	(808)	(585)	(808)	(585)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(17)	(23)
Other comprehensive income/(loss), net of tax			1	0
Ending balance	$ (16)	$ (23)	$ (16)	$ (23)