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Acquisitions and Dispositions - Schedule of Supplemental Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Supplemental Pro Forma (unaudited) |  |  |  |
Operating revenues and other income |  | $ 58,574 | $ 82,156 | $ 48,349
Income (loss) before income taxes |  |  |  | 12,712
Net Income (Loss) |  | $ 10,957 | $ 18,680 | $ 8,079
Earnings per share: |  |  |  |
Basic (in dollars per share) |  | $ 9.08 | $ 14.62 | $ 6.09
Diluted (in dollars per share) |  | $ 9.06 | $ 14.57 | $ 6.07
Income (loss) before income taxes |  | $ 16,288 | $ 28,228 | $ 12,712
Pro Forma |  |  |  |
Supplemental Pro Forma (unaudited) |  |  |  |
Operating revenues and other income |  | 61,135 | 85,738 | 51,569
Income (loss) before income taxes |  |  |  | 13,913
Net Income (Loss) |  | $ 11,458 | $ 19,400 | $ 8,999
Earnings per share: |  |  |  |
Basic (in dollars per share) |  | $ 9.50 | $ 15.18 | $ 6.78
Diluted (in dollars per share) |  | $ 9.47 | $ 15.13 | $ 6.76
Income (loss) before income taxes |  | $ 16,947 | $ 29,175 |
Surmont |  |  |  |
Supplemental Pro Forma (unaudited) |  |  |  |
Operating revenues and other income | $ 572 |  |  |
Net Income (Loss) | $ 119 |  |  |
Pro forma - total revenues and other income |  | 2,561 | 3,582 |
Pro forma - Income (loss) before income taxes |  | 659 | 947 |
Pro forma - Net Income (Loss) attributable to ConocoPhillips |  | $ 501 | $ 720 |
Shell Permian Assets |  |  |  |
Supplemental Pro Forma (unaudited) |  |  |  |
Pro forma - total revenues and other income |  |  |  | $ 3,220
Pro forma - Income (loss) before income taxes |  |  |  | 1,201
Pro forma - Net Income (Loss) attributable to ConocoPhillips |  |  |  | $ 920

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