Supplemental Cash Flow Information (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Supplemental disclosures: | ||
| Cash received for income taxes, net of payments | $ (1) | $ (1) |
| Cash paid for interest | 60 | 73 |
| Cash paid for amounts included in the measurement of lease liabilities: | ||
| Operating cash flows from operating leases | 11 | 11 |
| Operating cash flows from finance leases | 3 | 3 |
| Financing cash flows from finance leases | 5 | 4 |
| Noncash investing and financing activities: | ||
| Change in turnaround expenditures included in accounts payable | $ 0 | $ (1) |
| X | ||||||||||
- Definition Cash Flow, Lessee [Abstract] No definition available.
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| X | ||||||||||
- Definition Increase (Decrease) In Accounts Payable, Turnaround Expenditures No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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