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INCOME TAXES - Unrecognized deferred tax assets (Details) - CAD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total unrecognized temporary differences | $ 2,761 | $ 1,111
Tax losses in foreign jurisdictions, to be paid between 2025 and 2037 | 40 |
Tax losses in foreign jurisdictions, carried forward indefinitely | 32 |
Realized capital losses in Canada that can be applied against future capital gains |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total unrecognized temporary differences | 73 | 73
Unrealized capital losses on debt and derivative instruments |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total unrecognized temporary differences | 2,572 | 926
Tax losses in foreign jurisdictions |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total unrecognized temporary differences | 72 | 71
Deductible temporary differences in foreign jurisdictions |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total unrecognized temporary differences | $ 44 | $ 41

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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Deductible Temporary Differences For Which No Deferred Tax Asset Is Recognised, Carryforward Indefinitely + References No definition available. + Details
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