Income Taxes - Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current provision:
Federal	$ 34	$ 409	$ 282
State	(100)	224	141
Foreign	38	26	18
Deferred expense (benefit):
Federal	330	5	6
State	254	(11)	2
Foreign	7	(2)	(1)
Income tax expense	$ 563	$ 651	$ 448