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Exploration And Evaluation - Summary of Exploration And Evaluation (Parenthetical) (Detail) - Corporates Or Others 2022 [member] - USD ($) $ in Millions | 12 Months Ended |
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Dec. 31, 2021 | Dec. 31, 2022
Disclosure of detailed information about exploration and evaluation [line items] |  |
Cost of unsuccessful wells | $ 56 | $ 125
Capitalised cost of written of during period | $ 209 |

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- Details
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