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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Fair Value of Derivatives (Details) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | $ 1,015 | $ 529
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Deferred amounts and other assets | Deferred amounts and other assets
Current derivative liabilities | $ (898) | $ (717)
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other long-term liabilities | Other long-term liabilities
Total net financial asset/(liability) | $ (546) | $ (359)
Foreign exchange contracts |  |
Fair Value of Derivatives |  |
Total net financial asset/(liability) | (1,327) | (227)
Interest rate contracts |  |
Fair Value of Derivatives |  |
Total net financial asset/(liability) | 910 | (22)
Commodity contracts |  |
Fair Value of Derivatives |  |
Total net financial asset/(liability) | (139) | (115)
Other contracts |  |
Fair Value of Derivatives |  |
Total net financial asset/(liability) | 10 | 5
Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 1,015 | 529
Long-term derivative assets | 627 | 360
Current derivative liabilities | (898) | (717)
Long-term derivative liabilities | (1,290) | (531)
Total net financial asset/(liability) | (546) | (359)
Fair Value | Foreign exchange contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 46 | 259
Long-term derivative assets | 309 | 240
Current derivative liabilities | (566) | (303)
Long-term derivative liabilities | (1,116) | (423)
Total net financial asset/(liability) | (1,327) | (227)
Fair Value | Interest rate contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 660 | 64
Long-term derivative assets | 254 | 88
Current derivative liabilities |  | (150)
Long-term derivative liabilities | (4) | (24)
Total net financial asset/(liability) | 910 | (22)
Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 302 | 204
Long-term derivative assets | 61 | 29
Current derivative liabilities | (332) | (264)
Long-term derivative liabilities | (170) | (84)
Total net financial asset/(liability) | (139) | (115)
Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 7 | 2
Long-term derivative assets | 3 | 3
Total net financial asset/(liability) | 10 | 5
Level 1 | Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 65 | 38
Long-term derivative assets | 0 | 0
Current derivative liabilities | (60) | (52)
Long-term derivative liabilities | 0 | 0
Total net financial asset/(liability) | 5 | (14)
Level 1 | Fair Value | Foreign exchange contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 0 | 0
Long-term derivative assets | 0 | 0
Current derivative liabilities | 0 | 0
Long-term derivative liabilities | 0 | 0
Total net financial asset/(liability) | 0 | 0
Level 1 | Fair Value | Interest rate contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 0 | 0
Long-term derivative assets | 0 | 0
Current derivative liabilities |  | 0
Long-term derivative liabilities | 0 | 0
Total net financial asset/(liability) | 0 | 0
Level 1 | Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 65 | 38
Long-term derivative assets | 0 | 0
Current derivative liabilities | (60) | (52)
Long-term derivative liabilities | 0 | 0
Total net financial asset/(liability) | 5 | (14)
Level 1 | Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 0 | 0
Long-term derivative assets | 0 | 0
Total net financial asset/(liability) | 0 | 0
Level 2 | Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 803 | 396
Long-term derivative assets | 583 | 352
Current derivative liabilities | (643) | (519)
Long-term derivative liabilities | (1,158) | (466)
Total net financial asset/(liability) | (415) | (237)
Level 2 | Fair Value | Foreign exchange contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 46 | 259
Long-term derivative assets | 309 | 240
Current derivative liabilities | (566) | (303)
Long-term derivative liabilities | (1,116) | (423)
Total net financial asset/(liability) | (1,327) | (227)
Level 2 | Fair Value | Interest rate contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 660 | 64
Long-term derivative assets | 254 | 88
Current derivative liabilities |  | (150)
Long-term derivative liabilities | (4) | (24)
Total net financial asset/(liability) | 910 | (22)
Level 2 | Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 90 | 71
Long-term derivative assets | 17 | 21
Current derivative liabilities | (77) | (66)
Long-term derivative liabilities | (38) | (19)
Total net financial asset/(liability) | (8) | 7
Level 2 | Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 7 | 2
Long-term derivative assets | 3 | 3
Total net financial asset/(liability) | 10 | 5
Level 3 |  |
Fair Value of Derivatives |  |
Total net financial asset/(liability) | (136) |
Level 3 | Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 147 | 95
Long-term derivative assets | 44 | 8
Current derivative liabilities | (195) | (146)
Long-term derivative liabilities | (132) | (65)
Total net financial asset/(liability) | (136) | (108)
Level 3 | Fair Value | Foreign exchange contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 0 | 0
Long-term derivative assets | 0 | 0
Current derivative liabilities | 0 | 0
Long-term derivative liabilities | 0 | 0
Total net financial asset/(liability) | 0 | 0
Level 3 | Fair Value | Interest rate contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 0 | 0
Long-term derivative assets | 0 | 0
Current derivative liabilities |  | 0
Long-term derivative liabilities | 0 | 0
Total net financial asset/(liability) | 0 | 0
Level 3 | Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 147 | 95
Long-term derivative assets | 44 | 8
Current derivative liabilities | (195) | (146)
Long-term derivative liabilities | (132) | (65)
Total net financial asset/(liability) | (136) | (108)
Level 3 | Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets (Note 24) | 0 | 0
Long-term derivative assets | 0 | 0
Total net financial asset/(liability) | $ 0 | $ 0

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