v3.26.3
REVENUE - Schedule of Major Products and Services (Parenthetical) (Details) - CAD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Revenue [Line Items]        
Realized gain/(loss) on derivative $ (35) $ 13 $ (28) $ 145
Revenues from lease contracts $ 106 $ 116 $ 428 $ 415