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v3.25.1

Commitments and Contingencies - Narrative (Details) $ in Millions | 1 Months Ended | 119 Months Ended |
--- | --- | --- | ---
Mar. 31, 2025 USD ($) bbl | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
Line 901 Incident |  |  |
Legal, Environmental or Regulatory Matters |  |  |
Aggregate total estimated costs | $ 870 | $ 870 |
Line 901 Incident | Current liabilities |  |  |
Legal, Environmental or Regulatory Matters |  |  |
Remaining undiscounted liability | 4 | 4 | $ 5
Line 901 2015 Insurance Program |  |  |
Legal, Environmental or Regulatory Matters |  |  |
Recoveries from insurance carriers |  | 275 |
Coverage limit under insurance program | $ 500 | 500 |
Line 48 Incident |  |  |
Legal, Environmental or Regulatory Matters |  |  |
Estimated size of release (in barrels) | bbl | 125 |  |
Self-insured retention | $ 10 | 10 |
Aggregate cost to clean-up and remediate | 20 | 20 |
Clean-up and remediation activities | 12 | 12 |
Arbitration Proceedings Against Insurers | Minimum |  |  |
Legal, Environmental or Regulatory Matters |  |  |
Receivable for remaining portion of release costs probable of recovery from insurance | $ 225 | $ 225 |

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