v3.26.1
Loans and Allowance for Credit Losses - Reconciliation of Allowance for Credit Losses - Personal (Detail) - Retail [member] - Personal [member] - CAD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Disclosure of credit risk exposure [line items]        
Balance at beginning of period $ 1,659 $ 1,534 $ 1,639 $ 1,482
Provision for credit losses        
Model changes (54)   (54)  
Originations 55 25 79 53
Maturities (65) (66) (143) (132)
Changes in risk, parameters and exposures 226 329 509 614
Write-offs (250) (215) (493) (438)
Recoveries 43 37 85 71
Exchange rate and other (7) (11) (15) (17)
Balance at end of period 1,607 1,633 1,607 1,633
Performing Stage one [member]        
Disclosure of credit risk exposure [line items]        
Balance at beginning of period 283 305 291 305
Provision for credit losses        
Model changes 84   84  
Transfers to stage 1 156 141 308 285
Transfers to stage 2 (22) (32) (43) (53)
Transfers to stage 3 (1) (1) (2) (2)
Originations 55 25 79 53
Maturities (8) (13) (20) (26)
Changes in risk, parameters and exposures (208) (122) (357) (258)
Exchange rate and other 1 1    
Balance at end of period 340 304 340 304
Performing Stage two [member]        
Disclosure of credit risk exposure [line items]        
Balance at beginning of period 1,134 1,009 1,115 966
Provision for credit losses        
Model changes (138)   (138)  
Transfers to stage 1 (156) (140) (308) (284)
Transfers to stage 2 22 32 43 56
Transfers to stage 3 (35) (40) (76) (79)
Maturities (57) (53) (122) (106)
Changes in risk, parameters and exposures 267 304 524 558
Exchange rate and other (1) (2) (2) (1)
Balance at end of period 1,036 1,110 1,036 1,110
Impaired Stage three [member]        
Disclosure of credit risk exposure [line items]        
Balance at beginning of period 242 220 233 211
Provision for credit losses        
Transfers to stage 1   (1)   (1)
Transfers to stage 2       (3)
Transfers to stage 3 36 41 78 81
Maturities 0   (1)  
Changes in risk, parameters and exposures 167 147 342 314
Write-offs (250) (215) (493) (438)
Recoveries 43 37 85 71
Exchange rate and other (7) (10) (13) (16)
Balance at end of period $ 231 $ 219 $ 231 $ 219