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Oil And Gas Properties - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items]    
Capital commitments $ 4,245 $ 6,469
Increase in depreciation due to change in methodology value $ 416  
Revised capital commitments   $ 7,762
Bottom of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life of assets 5 years  
Top of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life of assets 50 years  
Buildings [member] | Bottom of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life of assets 24 years  
Buildings [member] | Top of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life of assets 50 years  
Plant and equipment [member] | Bottom of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life of assets 2 years  
Plant and equipment [member] | Top of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life of assets 40 years