Debt - Schedule of Carrying Values of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Debt instrument, face amount	$ 408	$ 374
Total debt and obligations under finance leases, principal balance	403	368
Short-term debt and current maturities of long-term debt	16	17
Total long-term debt and obligations under finance leases - principal balance	392	357
Long-term debt and obligations under finance leases	387	351
Unamortized discount (premium) and debt issuance costs, net	5	6
Revolver
Debt Instrument [Line Items]
Debt instrument, face amount	35	0
Total debt and obligations under finance leases, principal balance	35	0
7.50% Notes due 2027
Debt Instrument [Line Items]
Debt instrument, face amount	355	355
Total debt and obligations under finance leases, principal balance	350	349
Finance leases, asset financing and other
Debt Instrument [Line Items]
Debt instrument, face amount	18	19
Total debt and obligations under finance leases, principal balance	$ 18	$ 19

Debt Instrument, Face Amount, Non-current

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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