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employee future benefits - Disaggregation of defined benefit pension (Details) - Pension plans - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of net defined benefit liability (asset) |  |
Plan assets | $ 8,262 | $ 8,352
PBSR prior year interim estimate of solvency position |  | $ 1,910
PBSR composite weighted average discount rate | 4.70% | 4.60%
Hypothetical basis points decrease in PBSR composite weighted average discount rate (as a per cent) | 0.25% | 0.25%
Decrease in the PBSR solvency position with hypothetical decrease of 25 basis points in the composite weighted average discount rate | $ 198 | $ 207
Minimum |  |
Disclosure of net defined benefit liability (asset) |  |
PBSR interim solvency ratio | 120.00% | 117.00%
PBSR annual solvency ratio |  | 115.00%
PBSR interim three-year solvency ratio | 116.00% | 112.00%
PBSR annual three-year solvency ratio |  | 112.00%
Maximum |  |
Disclosure of net defined benefit liability (asset) |  |
PBSR interim solvency ratio | 138.00% | 131.00%
PBSR annual solvency ratio |  | 129.00%
PBSR interim three-year solvency ratio | 132.00% | 126.00%
PBSR annual three-year solvency ratio |  | 125.00%
Pension plan | Present value of the defined benefit obligations |  |
Disclosure of net defined benefit liability (asset) |  |
Defined benefit obligations accrued | $ (8,452) | $ (8,489)
Pension plan | Present value netting plan assets and defined benefit obligation [member] |  |
Disclosure of net defined benefit liability (asset) |  |
PBSR interim estimate of solvency position | 2,304 |
PBSR prior year update of annual estimate of solvency position |  | 1,856
Pension plan | Active members | Present value of the defined benefit obligations |  |
Disclosure of net defined benefit liability (asset) |  |
Defined benefit obligations accrued | (1,622) | (1,815)
Pension plan | Deferred members | Present value of the defined benefit obligations |  |
Disclosure of net defined benefit liability (asset) |  |
Defined benefit obligations accrued | (403) | (382)
Pension plan | Pensioners | Present value of the defined benefit obligations |  |
Disclosure of net defined benefit liability (asset) |  |
Defined benefit obligations accrued | (6,427) | (6,292)
Pension plan | Pension plans that have plan assets in excess of defined benefit obligations accrued | Present value netting plan assets and defined benefit obligation [member] |  |
Disclosure of net defined benefit liability (asset) |  |
PBSR interim estimate of solvency position | $ 2,304 |
PBSR prior year update of annual estimate of solvency position |  | $ 1,856

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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 fair value of defined benefit plan assets, adjusted for any effect of limiting it to the asset ceiling. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. The asset ceiling is the present value of any economic benefits available in the form of refunds from the defined benefit plan or reductions in future contributions to the defined benefit plan. + References No definition available. + Details
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