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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Schedule of Credit Concentrations and Maximum Credit Exposure, With Respect to Derivative Instruments (Details) - Derivative Instruments - CAD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
LIQUIDITY RISK AND CREDIT RISK |  |
Maximum credit exposure with respect to derivative instruments | $ 756 | $ 973
Canadian financial institutions |  |
LIQUIDITY RISK AND CREDIT RISK |  |
Maximum credit exposure with respect to derivative instruments | 249 | 344
US financial institutions |  |
LIQUIDITY RISK AND CREDIT RISK |  |
Maximum credit exposure with respect to derivative instruments | 191 | 128
European financial institutions |  |
LIQUIDITY RISK AND CREDIT RISK |  |
Maximum credit exposure with respect to derivative instruments | 75 | 116
Asian financial institutions |  |
LIQUIDITY RISK AND CREDIT RISK |  |
Maximum credit exposure with respect to derivative instruments | 32 | 53
Other |  |
LIQUIDITY RISK AND CREDIT RISK |  |
Maximum credit exposure with respect to derivative instruments | $ 209 | $ 332

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- Definition Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 + Details
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