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Contractual Commitments - Contractual Commitments - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Nov. 01, 2024
Feb. 09, 2023
Dec. 31, 2024
Disclosure of Contractual Commitments [Line Items]      
The exploratory and investment commitments and expenses until the completion of the most significant exploration permits and exploitation concessions     $ 1,994
Transportation concession percentage   24.80%  
Offshore Exploration Permits AUS 105 and AUS 106 [Member]      
Disclosure of Contractual Commitments [Line Items]      
Proportion of voting rights held in joint operation 35.00%