Long-Term Debt and Note Payable - Affiliate - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Long-term debt
Long-term debt, gross	$ 1,976
Unamortized premiums, net	1	$ 4
Unamortized debt issuance costs	(50)	(52)
Total long-term debt	1,927	2,157
Less current maturities	(239)	(1)
Long-term debt, excluding current maturities	1,688	2,156
Senior notes
Long-term debt
Long-term debt, gross	$ 1,973	1,986
Senior notes | Minimum
Long-term debt
Stated interest rate	6.50%
Senior notes | Maximum
Long-term debt
Stated interest rate	7.75%
Term loan
Long-term debt
Long-term debt, gross	$ 0	$ 215
Interest rate on term loan		7.97%
Finance lease and other
Long-term debt
Long-term debt, gross	$ 3	$ 4