Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Contingency [Line Items]
Provision for income taxes	$ 1,556	$ 981	$ 782
Effective Income Tax Rate, Percent	19.50%	17.90%	19.50%
Deferred Tax Assets, Valuation Allowance	$ 105	$ 123
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	72	100
Unrecognized Tax Benefits, Interest and Penalties on Income Taxes Accrued	9	12
Decrease in Unrecognized Tax Benefits is Reasonably Possible	30
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 105	$ 123