Employee Future Benefits - Re-measurement Gain/Loss Recorded in Other Comprehensive Income (Details) - CAD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Pension plans | ||
| Disclosure of defined benefit plans [line items] | ||
| Experience | $ 17 | $ (2) |
| Demographic assumption changes | 24 | 0 |
| Economic assumption changes | (19) | 101 |
| Return on plan assets (excluding interest income) | 27 | (31) |
| Change in effect of asset limit (excluding interest) | 0 | (1) |
| Total re-measurement gains (losses) recorded in OCI, net of tax | 49 | 67 |
| Retiree welfare plans | ||
| Disclosure of defined benefit plans [line items] | ||
| Experience | 10 | 16 |
| Demographic assumption changes | 6 | 0 |
| Economic assumption changes | 3 | 19 |
| Return on plan assets (excluding interest income) | 13 | (19) |
| Change in effect of asset limit (excluding interest) | 0 | 0 |
| Total re-measurement gains (losses) recorded in OCI, net of tax | $ 32 | $ 16 |
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [domain]; Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Actuarial gains (losses) arising from experience, net defined benefit liability (asset). No definition available.
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- Definition Change in effect of asset limit. No definition available.
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- Details
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