Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current income tax expense
U.S. federal									$ 107	$ 85	$ 1
Foreign									6	5	3
State and local									26	36	9
Total current expense									139	126	13
Deferred income tax expense (benefit)
U.S. federal									53	26	493
Foreign									1	(1)	(1)
State and local									(26)	(7)	61
Total deferred expense (benefit)									28	18	553
Other tax expense									0	0	61
Total income tax expense from continuing operations	$ 0	$ 67	$ 60	$ 40	$ 10	$ (51)	$ 96	$ 89	$ 167	$ 144	$ 627