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OTHER LONG-TERM LIABILITIES (Details) - CAD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]    
Deferred pension liability $ 0 $ 3
Supplemental executive retirement plan 83 96
Stock-based compensation 60 49
Derivative instruments 398 189
Contract liabilities 61 52
Other 136 176
Total other long-term liabilities $ 738 $ 565