Commitments and Contingencies (Guarantees) (Details) $ in Millions |
Mar. 31, 2026
USD ($)
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| Other Guarantees | |
| Loss Contingencies [Line Items] | |
| Maximum potential undiscounted payments | $ 185 |
| LOOP and LOCAP LLC | Guarantee of Indebtedness of Others | Financial Guarantee | |
| Loss Contingencies [Line Items] | |
| Maximum potential undiscounted payments | $ 210 |
| Bakken Pipeline System | Indirect | |
| Loss Contingencies [Line Items] | |
| Ownership percentage | 9.19% |
| Bakken Pipeline System | Guarantee of Indebtedness of Others | Financial Guarantee | |
| Loss Contingencies [Line Items] | |
| Maximum potential undiscounted payments | $ 78 |
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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
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