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Litigation and Environmental - Portland (Details) - Portland Harbor Superfund Site, Willamette River, Portland, Oregon $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) Terminals Parties
Environmental Protection Agency | KMLT |
Site Contingency [Line Items] |
Estimated Remedy Implementation Period | 10 years
Number of Parties Involved In Site Cleanup Allocation Negotiations | Parties | 90
Number of Liquid Terminals | Terminals | 2
Site Contingency, Loss Exposure Not Accrued, Best Estimate | $ | $ 2,800
Environmental Protection Agency | KMBT |
Site Contingency [Line Items] |
Number of Liquid Terminals | Terminals | 2
State And Federal Trustees | KMLT |
Site Contingency [Line Items] |
Loss Contingency, Damages Sought, Value | $ | $ 5

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