INCOME TAXES - Reconciliation of income tax expense applying statutory tax and effective tax rates (Details) - CAD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Income Taxes [Abstract] | ||
| Statutory income tax rate | 26.20% | 26.20% |
| Income before income tax expense | $ 7,626 | $ 2,306 |
| Computed income tax expense | 1,998 | 604 |
| Increase (decrease) in income tax expense resulting from: | ||
| Non-taxable gain on revaluation of MLSE investment | (1,304) | 0 |
| Non-deductible (taxable) stock-based compensation | 11 | (13) |
| Non-taxable portion of capital gains | (9) | 0 |
| Unrealized capital losses for which no deferred tax asset is recognized | 42 | 0 |
| Recognition of previously unrecognized capital loss | (10) | 0 |
| Other | (8) | (19) |
| Total income tax expense | $ 720 | $ 572 |
| Effective income tax rate | 9.40% | 24.80% |
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- Definition The amount of profit (loss) for a period before deducting tax expense. [Refer: Profit (loss)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The applicable income tax rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The tax expense (income) divided by the accounting profit. [Refer: Accounting profit] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that the entity does not separately disclose in the same statement or note. [Refer: Accounting profit; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The product of the accounting profit multiplied by the applicable tax rate(s). [Refer: Accounting profit; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Income Taxes [Abstract] No definition available.
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- Definition Increase (Decrease) in Income Tax Expense (Benefit) [Abstract] No definition available.
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- Definition Tax Effect Of Expense Not Deductible In Determining Taxable Profit (Tax Loss), Share-Based Compensation No definition available.
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- Definition Tax Effect Of Previously Unrecognised Capital Loss No definition available.
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- Definition Tax Effect Of Revenues Exempt From Taxation, Capital Gain No definition available.
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- Definition Tax Effect Of Unrealised Capital Losses For Which No Deferred Tax Asset Recognised No definition available.
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- Definition Tax Rate Effect Of Associates And Joint Ventures Accounted Using Equity Method Exempt From Taxation No definition available.
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