Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Current:
Federal	$ (1)	$ (28)	$ 0	$ (27)
State	4	8	4	10
Total	3	(20)	4	(17)
Deferred:
Federal	149	(10)	386	84
State	23	(15)	69	6
Total	172	(25)	455	90
Provision (benefit) for income taxes	$ 175	(45)	$ 459	73
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		88
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign		70		70
Deferred Tax Assets, Operating Loss Carryforwards, State and Local		18		$ 18
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions		$ 46