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Segment Information (Segment Expenses) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Segment Reporting Information [Line Items] |  |  |
Costs and expenses |  | $ 33,164 | $ 31,163
Operating Segments | Refining & Marketing |  |  |
Segment Reporting Information [Line Items] |  |  |
Cost of purchases |  | 27,435 | 25,658
Operating costs |  | 1,599 | 1,472
Distribution costs |  | 1,581 | 1,478
Other segment items | [1] | 341 | 405
Costs and expenses |  | 30,956 | 29,013
Operating Segments | Midstream |  |  |
Segment Reporting Information [Line Items] |  |  |
Other segment items | [2] | 1,433 | 1,399
Costs and expenses |  | 1,433 | 1,399
Operating Segments | Renewable Diesel |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating costs |  | 67 | 70
Distribution costs |  | 28 | 22
Other segment items | [3] | 417 | 592
Costs and expenses |  | $ 512 | $ 684
[1] | Other segment items for the Refining & Marketing segment include costs that are reimbursed by customers through commercial arrangements, as well as LIFO inventory adjustments.
[2] | Other segment items for the Midstream segment include operating expenses and purchased product costs. For purposes of managing the Midstream segment, the CODM is only provided consolidated Midstream expense information.
[3] | Other segment items for the Renewable Diesel segment include purchased product costs.

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