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Property, Plant and Equipment - Summary of Provision for Obsolescence of Materials and Equipment (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items]      
Amount at beginning of year $ 17,712 $ 17,510  
Amount at end of year 18,736 17,712 $ 17,510
Provision for Obsolescence of Materials and Equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Amount at beginning of year 171 151 123
Increases charged to profit or loss 53 24 30
Applications due to utilization (2) (4) (1)
Translation effect 0 (2) (1)
Adjustment for inflation 1 2  
Amount at end of year $ 223 $ 171 $ 151