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Segment Information (Capital Expenditures) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Plus: |  |  |
Capital expenditures | [1] | $ 1,012 | $ 644
Operating Segments |  |  |
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items] |  |  |
Capital expenditures and investments |  | 1,220 | 749
Less investments in equity method investees(a) | [2] | 240 | 132
Operating Segments | Refining & Marketing |  |  |
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items] |  |  |
Capital expenditures and investments |  | 328 | 362
Operating Segments | Midstream |  |  |
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items] |  |  |
Capital expenditures and investments |  | 892 | 386
Operating Segments | Renewable Diesel |  |  |
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items] |  |  |
Capital expenditures and investments | [2] | 0 | 1
Operating Segments | Renewable Diesel | Martinez JV |  |  |
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items] |  |  |
Capital expenditures and investments | [2] | 62 |
Corporate |  |  |
Plus: |  |  |
Corporate |  | 2 | 9
Capitalized interest |  | $ 30 | $ 18
[1] | Includes changes in capital expenditure accruals. See Note 18 for a reconciliation of total capital expenditures to additions to property, plant and equipment for the three months ended March 31, 2026 and 2025 as reported in the consolidated statements of cash flows.
[2] | Excludes $62 million of funding to the Martinez Renewables JV due to turnaround costs in the first quarter of 2026 expected to be recovered through subsequent distributions from the JV during 2026.

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