Income Taxes - Schedule of Reconciliation between the Statutory Federal Income Tax Rate and the Effective Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Differences between the statutory federal income tax rate and the effective tax rate
Provision for income taxes at statutory federal rate, Amount	$ 44	$ 73	$ 105
State income taxes, net of federal income tax benefit, Amount	37	3	44
Net income attributable to noncontrolling interests, Amount	(31)	(28)	(29)
Change in valuation allowance, Amount	88	122	33
Change in uncertain tax position, Amount	10
Nondeductible goodwill, Amount	29
Amended return adjustments, Amount	9		(22)
Other, Amount	5
Total provision for income taxes for income	$ 191	$ 170	$ 131
Provision for income taxes at statutory federal rate, Percentage	21.00%	21.00%	21.00%
State income taxes, net of federal income tax benefit, Percentage	17.90%	0.80%	8.70%
Net income attributable to noncontrolling interests, Percentage	(14.90%)	(8.00%)	(5.80%)
Change in valuation allowance, Percentage	42.50%	34.90%	6.80%
Change in uncertain tax position, Percent	4.90%
Nondeductible goodwill, Percentage	14.10%
Amended return adjustments, Percentage	4.30%		(4.40%)
Other, Percentage	2.50%
Provision for income taxes and effective tax rate for income, Percentage	92.30%	48.70%	26.30%