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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Earnings and Comprehensive Income (Details) - CAD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gain/(loss) recognized in OCI | $ 219 | $ 458 | $ 153 | $ 843
Amount of (gain)/loss reclassified from AOCI to earnings | 14 | 66 | 23 | 157
Estimated gain (loss) of AOCI related to cash flow hedges reclassified to earnings in the next 12 months |  |  | $ 16 |
Maximum term of hedging exposures to variability of cash flows |  |  | 30 months |
Total unrealized derivative fair value gain/(loss), net |  |  | $ 1,135 | (415)
Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net | 615 | (784) | 1,135 | (415)
Foreign exchange contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gain)/loss reclassified from AOCI to earnings | 0 | 0 | 0 | 13
Foreign exchange contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net | 509 | (806) | 1,065 | (373)
Foreign exchange contracts | Gas distribution sales revenues | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net |  |  | 645 | (65)
Foreign exchange contracts | Other income/(expense) | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net |  |  | 420 | (308)
Interest rate contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gain)/loss reclassified from AOCI to earnings | 15 | 66 | 23 | 142
Interest rate contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net | 45 | (16) | 55 | (16)
Commodity contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gain)/loss reclassified from AOCI to earnings | (1) | 0 | (1) | 0
Commodity contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net | 62 | 38 | 23 | (30)
Commodity contracts | Gas distribution sales revenues | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net |  |  | 8 | 25
Commodity contracts | Commodity sales | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net |  |  | 96 | 109
Commodity contracts | Commodity costs | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net |  |  | (51) | (167)
Commodity contracts | Operating and administrative expense | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net |  |  | (30) | 3
Other contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gain)/loss reclassified from AOCI to earnings | 0 | 0 | 1 | 2
Other contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gain/(loss), net | (1) | 0 | (8) | 4
Cash flow hedges | Foreign exchange contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gain/(loss) recognized in OCI | 0 | 0 | 0 | 2
Cash flow hedges | Interest rate contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gain/(loss) recognized in OCI | 215 | 480 | 110 | 857
Cash flow hedges | Commodity contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gain/(loss) recognized in OCI | 2 | (15) | 36 | (11)
Cash flow hedges | Other contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gain/(loss) recognized in OCI | 0 | (3) | (2) | 0
Fair value hedges | Foreign exchange contracts |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gain/(loss) recognized in OCI | $ 2 | $ (4) | $ 9 | $ (5)

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