Income Taxes - Income Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ 420	$ 105	$ 470
Foreign	1,541	1,406	1,391
Net income before income taxes	$ 1,961	$ 1,511	$ 1,861