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Deferred Income Tax - Summary of Deductible and Taxable Temporary Differences in Deferred Tax (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [abstract]      
Deferred tax liabilities $ 2,734 $ 2,613  
Deferred tax assets (109) (129)  
Net deferred income tax liability 2,625 2,484 $ 2,551
Deferred income tax assets (deductible temporary differences)      
Deficits on Group retirement benefit schemes 98 128  
Revaluation of derivative financial instruments to fair value 4 8  
Tax loss carryforwards (primarily income tax losses) 93 176  
Share-based payment expense 54 41  
Provisions for liabilities and working capital-related items 446 402  
Lease liabilities 335 330  
Other deductible temporary differences 87 59  
Total $ 1,117 $ 1,144