Income Taxes - Schedule of Significant Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
United States
Foreign	$ 3	$ 4	$ 3
Total current income tax expense	79	110	102
United States
Foreign	0	0	0
Total deferred income tax (benefit) expense	13	(11)	(7)
Total income tax expense	92	99	95
United States
United States
Federal	65	93	83
State	11	13	16
United States
Federal	14	(1)	(4)
State	$ (1)	$ (10)	$ (3)