Employee Benefit Plans and Similar Obligations - Summary of Share Based Compensation Plan (Plan 2025-2028) (Detail) $ / shares in Units, $ in Millions		12 Months Ended
Apr. 30, 2024	Dec. 31, 2025 USD ($) $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Granted	4,600,000
Plan 2025-2028 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Granted		676,090
Amount at the end of the fiscal year		676,090
Expense recognized during the fiscal year \| $		$ 4
Fair value of shares on grant date (in U.S. dollars) \| $ / shares		$ 34.35

The number of share options outstanding in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name IFRS
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+ Details