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Employee benefits plans - Economic actuarial assumptions and biometric data (Details) - Pension defined benefit plans [member] | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of defined benefit plans [line items] |  |
Retirement Age | 65 years | 65 years
Family Composition | 4 | 4
Percentage of Plan Participants, Men Married At Least Four Years And Over Sixty-Five Years Of Age | 90.00% | 90.00%
Percentage of Permanency in the Plan | 100.00% | 100.00%
Actuarial assumption of discount rates [member] |  |
Disclosure of defined benefit plans [line items] |  |
Nominal discount rate – medical assistance and life insurance | 11.16% | 9.14%
Actuarial assumption of medical cost trend rates [member] |  |
Disclosure of defined benefit plans [line items] |  |
Medical cost growth rate | 6.86% | 6.86%
Actuarial assumption of expected rates of inflation [member] |  |
Disclosure of defined benefit plans [line items] |  |
Nominal inflation | 3.50% | 3.50%
Actuarial Assumption, Aging Factor, Ages: 0 to 24 years |  |
Disclosure of defined benefit plans [line items] |  |
Percentage of Aging Factor | 1.50% | 1.50%
Actuarial Assumption, Aging Factor, Ages: 25 to 54 years |  |
Disclosure of defined benefit plans [line items] |  |
Percentage of Aging Factor | 2.50% | 2.50%
Actuarial Assumption, Aging Factor, Ages: 55 to 79 years |  |
Disclosure of defined benefit plans [line items] |  |
Percentage of Aging Factor | 4.50% | 4.50%
Actuarial Assumption, Aging Factor, Ages: Above 80 years |  |
Disclosure of defined benefit plans [line items] |  |
Percentage of Aging Factor | 2.50% | 2.50%
Actuarial assumption of mortality rates [member] |  |
Disclosure of defined benefit plans [line items] |  |
Description Of Biometric Table Of General Mortality | AT-2000 | AT-2000
Description Of Biometric Table Of General Mortality For Disabled Persons | IAPB 57 | IAPB 57
Percentage of Turnover | 1.00% | 1.00%

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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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- Definition The description of the biometric table of general mortality that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The description of the biometric table of general mortality for disabled persons that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition Medical cost trend rate used as significant actuarial assumption to determine the present value of a defined benefit obligation. + 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. + References No definition available. + Details
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- Definition The expected rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The percentage of adjustment based on a tiered aging factor that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The percentage of permanency in the plan used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The percentage of plan participants who are men married at least four years and are over 65 years old. + References No definition available. + Details
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