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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