Income Taxes Schedule of Income before Income Tax (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States income before tax	$ 3,644	$ 1,521	$ 2,440
International income before income taxes	26	(22)	32
Total income before income taxes	$ 3,670	$ 1,499	$ 2,472