Income Taxes - Breakdown of Income Tax Expense Between Current and Deferred (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal	$ 928	$ 827	$ 559
State	203	176	123
Subtotal Current	1,131	1,003	682
Deferred:
Federal	166	166	149
State	(49)	1	31
Subtotal Deferred	117	167	180
Total Income Tax Expense	$ 1,248	$ 1,170	$ 862