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Risks Arising from Financial Instruments - Summary of Carrying Amount of Financial Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of credit risk exposure [line items]    
Net carrying amount $ 5,406 $ 4,714
Trade receivables [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount 4,261 3,792
Other receivables [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount 1,145 923
Gross carrying amount [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount 5,874 5,152
Gross carrying amount [member] | Trade receivables [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount 4,661 4,168
Gross carrying amount [member] | Other receivables [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount 1,213 984
Impairment losses [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount (468) (438)
Impairment losses [member] | Trade receivables [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount (399) (377)
Impairment losses [member] | Other receivables [member]    
Disclosure of credit risk exposure [line items]    
Net carrying amount $ (68) $ (61)