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Risks Arising from Financial Instruments - Analysis of Financial Instruments (Detail) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about financial instruments [line items]    
Financial Assets $ 16,642 $ 15,608 [1]
Financial Liabilities 105,662 108,229 [1]
Quoted (unadjusted) prices- level 1 [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 28 36
Financial Liabilities 18 26
Quoted (unadjusted) prices- level 1 [member] | Derivative liabilities [member] | Cash flow hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities 18 26
Quoted (unadjusted) prices- level 1 [member] | Derivatives [member] | Cash flow hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 28 36
Observable market inputs - level 2 [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 530 364
Financial Liabilities 5,451 5,466
Observable market inputs - level 2 [member] | Derivative liabilities [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities 4,736 4,799
Observable market inputs - level 2 [member] | Derivative liabilities [member] | Cash flow hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities 524 525
Observable market inputs - level 2 [member] | Derivative liabilities [member] | Fair value hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities 10 4
Observable market inputs - level 2 [member] | Derivative liabilities [member] | Net investment hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities 181 138
Observable market inputs - level 2 [member] | Non derivative financial assets [member] | Held for trading (non-derivatives) [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 9 9
Observable market inputs - level 2 [member] | Derivatives [member] | Financial assets at fair value through profit or loss, category [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 51 41
Observable market inputs - level 2 [member] | Derivatives [member] | Cash flow hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 381 219
Observable market inputs - level 2 [member] | Derivatives [member] | Net investment hedges [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Assets 89 94
Unobservable market inputs - level 3 [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities 741 762
Unobservable market inputs - level 3 [member] | Derivative liabilities [member] | Deferred consideration on acquisitions [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial Liabilities $ 741 $ 762
[1] Amended to conform to 2023 presentation.