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Trade and Other Receivables - Schedule of Trade Receivables and Other Receivables (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Net carrying amount [member]    
Trade and Other Receivables [line items]    
Trade receivables and accrued income $ 3,465 $ 3,285
Loans to customers 117 142
Interest receivable 18 4
Other receivables 521 522
Current trade and other receivable 4,120 3,953
Neither Impaired Nor Past Due on the Reporting Date [member]    
Trade and Other Receivables [line items]    
Trade receivables and accrued income 3,223 3,074
Loans to customers 83 86
Interest receivable 18 4
Other receivables 513 416
Current trade and other receivable 3,836 3,580
Not Impaired as of the Reporting Date and Past [member] | Less Than 30 Days [member]    
Trade and Other Receivables [line items]    
Trade receivables and accrued income 164 155
Loans to customers 2 3
Other receivables 2 2
Current trade and other receivable 167 161
Not Impaired as of the Reporting Date and Past [member] | 30 Between and 59 Day [member]    
Trade and Other Receivables [line items]    
Trade receivables and accrued income 62 37
Loans to customers 2 2
Other receivables 1 16
Current trade and other receivable 65 55
Not Impaired as of the Reporting Date and Past [member] | Between 60 and 89 Days [member]    
Trade and Other Receivables [line items]    
Trade receivables and accrued income 11 10
Loans to customers 31 50
Other receivables 2 5
Current trade and other receivable 44 66
Not Impaired as of the Reporting Date and Past [member] | More Than 90 Days [member]    
Trade and Other Receivables [line items]    
Trade receivables and accrued income 5 8
Other receivables 3 83
Current trade and other receivable $ 8 $ 91