v3.25.4
INCOME TAXES - Components of tax expense (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Current tax expense:    
For the current period $ 639 $ 884
Change in estimate relating to prior periods (100) (20)
Total current tax expense 539 864
Deferred tax expense (recovery):    
Origination (reversal) of temporary differences 81 (291)
Change in estimate relating to prior periods 100 (1)
Total deferred tax expense (recovery) 181 (292)
Total income tax expense $ 720 $ 572