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Equity - Summary of Equity Share Capital (Detail) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of classes of share capital [line items] |  |  |
Number of shares beginning balance | 172 | 183 | 187
Beginning balance | $ (1,946) | $ (1,608) | $ (1,474)
Repurchased and cancelled under share repurchase programme | (7) | (11) | (4)
Exchange adjustments | $ 0 |  |
Number of shares ending balance | 165 | 172 | 183
Ending balance | $ (2,308) | $ (1,946) | $ (1,608)
Nominal value [Member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Beginning balance | 46 | 46 | 53
Repurchased and cancelled under share repurchase programme | (2) | (3) | (1)
Exchange adjustments | (1) | 3 | (6)
Ending balance | 43 | 46 | 46
Share premium [Member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Beginning balance | 95 | 91 | 101
Repurchased and cancelled under share repurchase programme | 0 | 0 |
Exchange adjustments | (1) | 4 | (10)
Ending balance | 94 | 95 | 91
Equity share capital [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Beginning balance | 141 | 137 | 154
Repurchased and cancelled under share repurchase programme | (2) | (3) | (1)
Exchange adjustments | (2) | 7 | (16)
Ending balance | $ 137 | $ 141 | $ 137

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