Employee Future Benefits - Schedule of Net Benefit Costs (Details) - CAD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
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| DBP Plans | ||
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | ||
| Service costs | $ 74 | $ 62 |
| Interest costs | 161 | 159 |
| Expected return on plan assets | (221) | (202) |
| Amortization of actuarial gains | (1) | (9) |
| Amortization of past service credits/plan amendments | (1) | (1) |
| Regulatory adjustments | (1) | 12 |
| Net benefit cost | 11 | 21 |
| OPEB Plans | ||
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | ||
| Service costs | 25 | 22 |
| Interest costs | 29 | 30 |
| Expected return on plan assets | (26) | (22) |
| Amortization of actuarial gains | (17) | (19) |
| Amortization of past service credits/plan amendments | (1) | (1) |
| Regulatory adjustments | 2 | 5 |
| Net benefit cost | $ 12 | $ 15 |
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- Definition Defined Benefit Plan, Regulatory Adjustments No definition available.
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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- Details
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