Income Taxes - Schedule of Income Tax Provision (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Current portion of income tax provision:
Federal	$ 0	$ 0	$ (1)	$ (1)
State	(7)	(11)	(14)	(23)
Total current portion	(7)	(11)	(15)	(24)
Deferred portion of income tax provision:
Federal	(5)	(4)	(9)	(8)
State	0	(1)	(10)	(8)
Total deferred portion	(5)	(5)	(19)	(16)
Total provision for income taxes	$ (12)	$ (16)	$ (34)	$ (40)