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Employee future benefits - Actuarial Assumptions (Details) | Dec. 31, 2022 | Dec. 31, 2021
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Net defined benefit pension plan liability |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate, fair value benefit obligation | 5.00% | 2.76%
Discount rate, net expense | 2.76% | 2.40%
Net other post-retirement benefit plan liability |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Discount rate, fair value benefit obligation | 4.89% | 2.25%
Discount rate, net expense | 4.89% | 2.25%

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- Definition Actuarial Assumption Of Discount Rates, Net Expense + References No definition available. + Details
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- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 144 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_144&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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