Related Party Transactions - Summary of Key Management Personnel Compensation, Including Directors (Detail) - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Related party transactions [abstract] | ||
| Salaries and other benefits | $ 23 | $ 25 |
| Share-based payments | 24 | 19 |
| Total compensation | $ 47 | $ 44 |
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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