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Income Taxes - Reconciliation of Total Income Tax (Benefit) Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Tax computed at federal statutory rate	$ 14	$ (87)	$ 103
State income taxes, net of federal tax benefit	3	(18)	29
Changes in enacted state tax rates, net of federal tax benefit	(10)	0	0
State tax incentives, net of federal tax expense	(6)	(7)	(4)
Noncontrolling interest	(10)	13	4
Goodwill impairment	0	3	0
Other, net	1	1	(3)
Total income tax (benefit) expense	$ (8)	$ (95)	$ 129

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