v3.25.4
Risk Management - Allowance for Credit Losses by Stage (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of credit risk exposure [line items]    
Balance, beginning of year $ 828 $ 929
Net re-measurement due to transfers 0 0
Transfer to stage 1 0 0
Transfer to stage 2 0 0
Transfer to stage 3 0 0
Net originations, purchases, disposals and repayments (49) (131)
Changes to risk, parameters, and models 44 (5)
Foreign exchange and other adjustments (14) 35
Balance, end of year 809 828
Stage 1    
Disclosure of credit risk exposure [line items]    
Balance, beginning of year 434 483
Net re-measurement due to transfers 4 4
Transfer to stage 1 11 12
Transfer to stage 2 (7) (7)
Transfer to stage 3 0 (1)
Net originations, purchases, disposals and repayments 59 36
Changes to risk, parameters, and models (72) (107)
Foreign exchange and other adjustments (15) 18
Balance, end of year 410 434
Stage 2    
Disclosure of credit risk exposure [line items]    
Balance, beginning of year 213 209
Net re-measurement due to transfers (31) (22)
Transfer to stage 1 (11) (12)
Transfer to stage 2 7 7
Transfer to stage 3 (27) (17)
Net originations, purchases, disposals and repayments (11) (8)
Changes to risk, parameters, and models (1) 21
Foreign exchange and other adjustments (3) 13
Balance, end of year 167 213
Stage 3    
Disclosure of credit risk exposure [line items]    
Balance, beginning of year 181 237
Net re-measurement due to transfers 27 18
Transfer to stage 1 0 0
Transfer to stage 2 0 0
Transfer to stage 3 27 18
Net originations, purchases, disposals and repayments (97) (159)
Changes to risk, parameters, and models 117 81
Foreign exchange and other adjustments 4 4
Balance, end of year $ 232 $ 181