Commitments and Contingencies - Environmental Liabilities Contingencies (Details) - Excluding Line 901 Incident - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Loss Contingencies [Line Items] | ||
| Estimated undiscounted reserve for environmental liabilities, short-term [Extensible Enumeration] | Other current liabilities | Other current liabilities |
| Estimated undiscounted reserve for environmental liabilities, short-term | $ 8 | $ 13 |
| Estimated undiscounted reserve for environmental liabilities, long-term [Extensible Enumeration] | Other long-term liabilities and deferred credits | Other long-term liabilities and deferred credits |
| Estimated undiscounted reserve for environmental liabilities, long-term | $ 66 | $ 70 |
| Estimated undiscounted reserve for environmental liabilities | $ 74 | $ 83 |
| X | ||||||||||
- Definition Undiscounted amount of the accrual for environmental loss contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes accrual for environmental loss contingency classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes accrual for environmental loss contingency classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|