Taxation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disclosure Of Income Taxes [Line Items]
Current tax Expense	$ 71	$ 52	$ 196	$ 144
Tax expense (benefit)	71	52	196	144
Organization For Economic Cooperation And Development [Member]
Disclosure Of Income Taxes [Line Items]
Tax expense (benefit)	$ 0	$ 0	$ 0	$ 0
Minimum tax rate percentage as per top up taxes			15.00%

- References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2025-01-01
-Paragraph 23
-Subparagraph h
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 26
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-Subparagraph b
-Clause viii
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-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2025-01-01
-Paragraph 79
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-URIDate 2025-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-Name IFRS
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
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+ Details