Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Current:
Federal	$ (28)	$ 0	$ (27)	$ (2)
State	8	1	10	0
Total	(20)	1	(17)	(2)
Deferred:
Federal	(10)	85	84	200
State	(15)	33	6	62
Total	(25)	118	90	262
Provision (benefit) for income taxes	(45)	$ 119	73	$ 260
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
Scenario, Plan
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Proceeds from Income Tax Refunds			$ 3