v3.25.4
INTANGIBLE ASSETS - Summary of Intangible Assets (Details) - CAD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets $ 1,590 $ 1,487
Accumulated Amortization 965 877
Development in Progress 29 51
Total 654 661
Computer applications software    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets 1,585 1,481
Accumulated Amortization 960 872
Development in Progress 29 51
Total 654 660
Other    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets 5 6
Accumulated Amortization 5 5
Development in Progress 0 0
Total $ 0 $ 1