Environmental Obligations - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2026 |
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| Site Contingency [Line Items] | ||
| Environmental loss contingencies, net of expected recoveries, in excess of accrual | $ 304 | |
| Portland Harbor | ||
| Site Contingency [Line Items] | ||
| Environmental loss contingencies, net of expected recoveries, in excess of accrual | $ 31 | |
| Increase to environmental loss contingencies | $ 20 |
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- Definition Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Estimate of reasonably possible loss exposure in excess of amount accrued for remediation, site restoration, postclosure, monitoring commitments, or other exit costs associated with the sale, disposal or abandonment of a particular property resulting from unanticipated contamination of the assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| 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/recommendedDisclosureRef
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| X | ||||||||||
- Details
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