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Sales and Other Operating Revenues - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023 | Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |  |  |
Accounts receivable, after allowance for credit loss | $ 4,630 | $ 4,630 | $ 5,241
Revenue recognized | 0 | 0 |
Contract with customer, liability | $ 26 | $ 26 |

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