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Share Capital Authorized - Summary of Issues and Outstanding (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of classes of share capital [line items] |  |
Balance, January 1 | $ 504 |
Exercise of stock options | 1 | $ 1
Ending balance | 505 | 504
Ordinary shares [member] |  |
Disclosure of classes of share capital [line items] |  |
Balance, January 1 | $ 504 | $ 503
Balance, January 1 (Shares) | 123,956,865 | 123,739,020
Exercise of stock options | $ 1 | $ 1
Exercise of stock options (Shares) | 186,314 | 217,845
Ending balance | $ 505 | $ 504
Ending balance (Shares) | 124,143,179 | 123,956,865

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