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Post-retirement benefits - Summary of the reasonably possible changes (Detail) $ in Millions | Dec. 31, 2024 USD ($)
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Effect on the discount rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption | $ 3.6
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption | (4.4)
Effect on medical inflation |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption | (4.3)
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption | $ 3.6

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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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