Income Taxes - Schedule of Components of Income Tax Expense/(Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 140	$ 123	$ 235
State	28	33	39
Deferred:
Federal	37	87	(1)
State	7	4	1
Total	$ 212	$ 247	$ 274