Debt - Schedule of Debt Outstanding (Details) - USD ($) $ in Millions	Sep. 30, 2026	Mar. 18, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Finance leases and other	$ 51		$ 61
Total debt	2,124		61
Less: current portion	(58)		(58)
Long-term debt	2,066		3
Senior Notes \| Senior Notes Due 2031
Debt Instrument [Line Items]
Long-term debt, gross	$ 789		0
Debt instrument, interest rate, stated percentage	6.125%	6.125%
Debt instrument, unamortized discount	$ 11
Senior Notes \| Senior Notes Due 2034
Debt Instrument [Line Items]
Long-term debt, gross	$ 789		0
Debt instrument, interest rate, stated percentage	6.375%	6.375%
Debt instrument, unamortized discount	$ 11
Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	495		$ 0
Debt instrument, unamortized discount	$ 5

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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