Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 4,544	$ 3,773
Other comprehensive income, net of tax	60	97
Ending balance	4,658	4,092
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(764)	(730)
Other comprehensive income, net of tax	60	97
Ending balance	(704)	(633)
Derivatives Net Unrealized Gains/ (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	4	(15)
Other comprehensive income, net of tax	26	39
Ending balance	30	24
Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	5	(37)
Other comprehensive income, net of tax	12	25
Ending balance	17	(12)
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(756)	(655)
Other comprehensive income, net of tax	21	33
Ending balance	(735)	(622)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(17)	(23)
Other comprehensive income, net of tax	1	0
Ending balance	$ (16)	$ (23)