Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Earnings before income taxes	$ 4,951	$ 3,627	$ 4,316
Additional income tax benefit	48	30	$ 77
Unrecognized tax benefits	18	16
Amount of unrecognized tax benefits that could favorably impact effective income tax rate	$ 15	$ 13