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Segmental Information - Summary of Information by Reportable Segment - Other Segmental Information (Parenthetical) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of reportable segments [line items] |  |  |
Depreciation and amortisation | $ 98 | $ 110 | $ 116
Administrative expenses [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Depreciation and amortisation | 20 | 29 | 32
Cost of sales [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Depreciation and amortisation | 78 | 81 | 84
System Fund [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Depreciation and amortisation | $ 94 | $ 62 | $ 54

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