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Significant Production And Growth Asset Acquisitions - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2022 | Jul. 07, 2021 | Dec. 22, 2020
FAR Senegal RSSD SA [member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Total identifiable net assets at acquisition |  |  | $ 212 |  |
Asset acquisition contingent consideration |  |  | 55 |  |
Capricorn Senegal Limited [member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Total identifiable net assets at acquisition |  |  | $ 527 |  | $ 527
Asset acquisition contingent consideration |  |  |  |  | $ 100
FAR Senegal RSSD SA Sangomar Exploitation Area [Member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  | 13.67% |
Proportion of ownership interest in joint venture | 82.00% | 68.33% |  |  |
FAR Senegal RSSD SA RSSD Evaluation Area [Member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  | 15.00% |
Proportion of ownership interest in joint venture | 90.00% | 75.00% |  |  |
Capricorn Senegal Limited Sangomar Exploitation Area [Member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  | (36.44%)
Capricorn Senegal Limited RSSD Evaluation Area [Member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  | 40.00%
RSSD Joint Venture [member] | FAR Senegal RSSD SA [member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Total identifiable net assets at acquisition |  |  |  | $ 212 |

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