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Trade and Other Receivables - Summary Of Unbilled Revenue And Retentions Explanatory (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Detailed Information About Unbilled Revenue And Retentions [Abstract]    
Beginning Balance, Unbilled revenue $ 297 $ 278
Translation adjustment, Unbilled revenue (4) 7
Additional contract balances recognized, Unbilled revenue 318 238
Invoiced in the period, Unbilled revenue (239) (226)
Received from customers, Unbilled revenue 0  
Written off, Unbilled Revenue (11)  
Disposals, Unbilled revenue 0  
Ending Balance, Unbilled revenue 361 297
Beginning balance, Retentions 202 206
Translation adjustment, Retentions (1) 3
Additional contract balances recognized, Retentions 130 130
Invoiced in the period, Retentions 0 0
Received from customers, Retentions (125) (137)
Disposals, Retentions (2)  
Ending Balance, Retentions $ 204 $ 202