Commitments and Contingencies - Renewable Fuel Standard (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Environmental, Health, and Safety Matters \| Petroleum Segment
Loss Contingencies [Line Items]
RFS obligation	$ 408	$ 72

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.

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+ Details