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Property Plant and Equipment - Summary of Changes in Property Plant and Equipment (Parenthetical) (Detail)
$ in Millions
 12 Months Ended
Dec. 31, 2023
USD ($)
well
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Disclosure of detailed information about property, plant and equipment [line items]      
Exploratory wells in progress | well 26    
Drilled wells | well 11    
Charged to exploratory expense | well 4    
Transferred to proved properties | well 4    
Net book value charged to Property, plant and equipment provisions $ 4 $ 1 $ 1
Depreciation of property plant and equipment 3,016 2,551 2,816
Cost increases of short-term leases 57 44 11
Cost increases of variable charge of leases related to the underlying asset return/use 6 5 7
Capitalization of depreciation of right-of-use assets 68 57 44
Capitalization of financial accretion for lease liabilities 13 14 11
Mining property, wells and related equipment      
Disclosure of detailed information about property, plant and equipment [line items]      
Mineral property 269 333 356
Mining property, wells and related equipment | Reversal of Loma de La Mina block [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Reclassification of assets held for disposal     140
Hydrocarbon Wells Abandonmnet [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Increase/(Decrease) of cost of Property, plant and equipment 507 268 $ 32
Depreciation of property plant and equipment $ 13 $ 19