Income Taxes - Income Taxes at Federal Statutory Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Amount
Tax Expense at Federal Statutory Rate	$ 137	$ 255	$ 407
State taxes, net of federal benefit	32	39	70
Bargain purchase gain(1)	(20)	0	0
Nondeductible executive compensation	11	8	9
Share based compensation	(9)	(9)	(8)
Other, net	3	(2)	(7)
Total income tax expense	$ 154	$ 291	$ 471