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Derivative and Financial Instruments - Gain (Loss) Amounts of Derivatives, Income Statement Location (Details) - Commodity - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Sales and other operating revenues |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gains (losses) from commodity derivatives | $ 230 | $ 133 | $ 86
Other income |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gains (losses) from commodity derivatives | (8) | (4) | (6)
Purchased commodities |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gains (losses) from commodity derivatives | $ (97) | $ (133) | $ (90)

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