v3.26.1
Fair Value Measurements - Summary of Fair Value Measurement of Assets and Liabilities (Details) - CAD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2026
Jan. 31, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Oct. 31, 2025
Disclosure of fair value measurement of assets [line items]            
Trading Securities $ 207,475     $ 207,475   $ 192,303
Total FVTPL securities 23,250     23,250   21,354
FVOCI Securities 122,176     122,176   113,209
Derivative Assets            
Derivative Assets 62,358     62,358   57,151
Derivative Liabilities            
Derivative Liabilities 64,056     64,056   58,729
Interest expense for liabilities 9,746 $ 9,520 $ 10,557 19,266 $ 21,782  
Interest expense for liabilities carried at fair value            
Derivative Liabilities            
Interest expense for liabilities 1,373   1,060 2,244 1,780  
Interest expense for liabilities carried at amortized cost            
Derivative Liabilities            
Interest expense for liabilities 8,373   $ 9,497 17,022 $ 20,002  
Level 3            
Disclosure of fair value measurement of assets [line items]            
Fair value liabilities 135     135    
Measured at fair value            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 207,475     207,475   192,303
Total FVTPL securities 23,250     23,250   21,354
FVOCI Securities           113,209
Loans 13,314     13,314   13,324
Other Assets 10,905     10,905   10,004
Deposits 62,466     62,466   56,162
Securities sold but not yet purchased 62,947     62,947   54,876
Other liabilities 48,386     48,386   34,238
Fair value liabilities 173,799     173,799   145,276
Derivative Assets            
Derivative Assets 62,358     62,358   57,151
Derivative Liabilities            
Derivative Liabilities 64,056     64,056   58,729
Measured at fair value | Canadian federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 11,077     11,077   12,311
Total FVTPL securities 1,414     1,414   1,619
FVOCI Securities 49,497     49,497   45,335
Measured at fair value | Canadian provincial and municipal governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 10,080     10,080   9,035
Total FVTPL securities 2,440     2,440   1,578
FVOCI Securities 7,893     7,893   5,644
Measured at fair value | U.S. federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 29,447     29,447   30,902
Total FVTPL securities 1,753     1,753   1,495
FVOCI Securities 23,681     23,681   20,809
Measured at fair value | U.S. states, municipalities and agencies            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 281     281   1,144
FVOCI Securities 4,578     4,578   5,634
Measured at fair value | Other governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 3,408     3,408   4,126
Total FVTPL securities 124     124   0
FVOCI Securities 3,838     3,838   4,065
Measured at fair value | NHA MBS, and U.S. agency MBS and CMO            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 71,978     71,978   56,450
Total FVTPL securities 18     18   18
FVOCI Securities 27,918     27,918   27,015
Measured at fair value | Corporate debt            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 15,225     15,225   11,614
Total FVTPL securities 9,708     9,708   8,908
FVOCI Securities 4,582     4,582   4,515
Measured at fair value | Trading loans            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 3,402     3,402   4,568
Measured at fair value | Corporate equity            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 62,577     62,577   62,153
Total FVTPL securities 7,793     7,793   7,736
FVOCI Securities 189     189   192
Measured at fair value | Residential mortgages            
Disclosure of fair value measurement of assets [line items]            
Loans 68     68   79
Measured at fair value | Business and government loans            
Disclosure of fair value measurement of assets [line items]            
Loans 13,246     13,246   13,245
Measured at fair value | Interest rate contracts            
Derivative Assets            
Derivative Assets 9,551     9,551   8,681
Derivative Liabilities            
Derivative Liabilities 10,551     10,551   10,099
Measured at fair value | Foreign exchange contracts            
Derivative Assets            
Derivative Assets 25,432     25,432   30,519
Derivative Liabilities            
Derivative Liabilities 20,395     20,395   26,049
Measured at fair value | Commodity contracts            
Derivative Assets            
Derivative Assets 3,758     3,758   1,462
Derivative Liabilities            
Derivative Liabilities 3,583     3,583   1,608
Measured at fair value | Equity contracts            
Derivative Assets            
Derivative Assets 23,545     23,545   16,488
Derivative Liabilities            
Derivative Liabilities 29,422     29,422   20,973
Measured at fair value | Credit default swaps            
Derivative Assets            
Derivative Assets 72     72   1
Derivative Liabilities            
Derivative Liabilities 105     105   0
Measured at fair value | Level 1            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 66,620     66,620   65,759
Total FVTPL securities 1,104     1,104   1,146
FVOCI Securities 817     817   1,211
Loans 0     0   0
Other Assets 9,410     9,410   8,521
Deposits 0     0   0
Securities sold but not yet purchased 21,589     21,589   14,998
Other liabilities 2,311     2,311   2,142
Fair value liabilities 23,900     23,900   17,140
Derivative Assets            
Derivative Assets 324     324   558
Derivative Liabilities            
Derivative Liabilities 588     588   389
Measured at fair value | Level 1 | Canadian federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 784     784   757
Total FVTPL securities 0     0   56
FVOCI Securities 511     511   1,158
Measured at fair value | Level 1 | Canadian provincial and municipal governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 1 | U.S. federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 3,888     3,888   3,308
Total FVTPL securities 0     0   0
FVOCI Securities 297     297   16
Measured at fair value | Level 1 | U.S. states, municipalities and agencies            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 1 | Other governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 147     147   199
Total FVTPL securities 0     0   0
FVOCI Securities 9     9   37
Measured at fair value | Level 1 | NHA MBS, and U.S. agency MBS and CMO            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 1 | Corporate debt            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 1 | Trading loans            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Measured at fair value | Level 1 | Corporate equity            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 61,801     61,801   61,495
Total FVTPL securities 1,104     1,104   1,090
FVOCI Securities 0     0   0
Measured at fair value | Level 1 | Residential mortgages            
Disclosure of fair value measurement of assets [line items]            
Loans 0     0   0
Measured at fair value | Level 1 | Business and government loans            
Disclosure of fair value measurement of assets [line items]            
Loans 0     0   0
Measured at fair value | Level 1 | Interest rate contracts            
Derivative Assets            
Derivative Assets 68     68   15
Derivative Liabilities            
Derivative Liabilities 54     54   18
Measured at fair value | Level 1 | Foreign exchange contracts            
Derivative Assets            
Derivative Assets 0     0   43
Derivative Liabilities            
Derivative Liabilities 35     35   0
Measured at fair value | Level 1 | Commodity contracts            
Derivative Assets            
Derivative Assets 136     136   225
Derivative Liabilities            
Derivative Liabilities 344     344   196
Measured at fair value | Level 1 | Equity contracts            
Derivative Assets            
Derivative Assets 76     76   275
Derivative Liabilities            
Derivative Liabilities 107     107   175
Measured at fair value | Level 1 | Credit default swaps            
Derivative Assets            
Derivative Assets 44     44   0
Derivative Liabilities            
Derivative Liabilities 48     48   0
Measured at fair value | Level 2            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 140,855     140,855   126,544
Total FVTPL securities 16,325     16,325   14,384
FVOCI Securities 121,170     121,170   111,806
Loans 13,000     13,000   13,000
Other Assets 0     0   0
Deposits 62,466     62,466   56,162
Securities sold but not yet purchased 41,358     41,358   39,878
Other liabilities 45,940     45,940   32,096
Fair value liabilities 149,764     149,764   128,136
Derivative Assets            
Derivative Assets 62,008     62,008   56,568
Derivative Liabilities            
Derivative Liabilities 63,447     63,447   58,335
Measured at fair value | Level 2 | Canadian federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 10,293     10,293   11,554
Total FVTPL securities 1,414     1,414   1,563
FVOCI Securities 48,986     48,986   44,177
Measured at fair value | Level 2 | Canadian provincial and municipal governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 10,080     10,080   9,035
Total FVTPL securities 2,440     2,440   1,578
FVOCI Securities 7,893     7,893   5,644
Measured at fair value | Level 2 | U.S. federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 25,559     25,559   27,594
Total FVTPL securities 1,753     1,753   1,495
FVOCI Securities 23,384     23,384   20,793
Measured at fair value | Level 2 | U.S. states, municipalities and agencies            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 281     281   1,144
FVOCI Securities 4,578     4,578   5,634
Measured at fair value | Level 2 | Other governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 3,261     3,261   3,927
Total FVTPL securities 124     124   0
FVOCI Securities 3,829     3,829   4,028
Measured at fair value | Level 2 | NHA MBS, and U.S. agency MBS and CMO            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 71,978     71,978   56,450
Total FVTPL securities 18     18   18
FVOCI Securities 27,918     27,918   27,015
Measured at fair value | Level 2 | Corporate debt            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 15,225     15,225   11,614
Total FVTPL securities 9,705     9,705   8,908
FVOCI Securities 4,582     4,582   4,515
Measured at fair value | Level 2 | Trading loans            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 3,402     3,402   4,568
Measured at fair value | Level 2 | Corporate equity            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 776     776   658
Total FVTPL securities 871     871   822
FVOCI Securities 0     0   0
Measured at fair value | Level 2 | Residential mortgages            
Disclosure of fair value measurement of assets [line items]            
Loans 68     68   79
Measured at fair value | Level 2 | Business and government loans            
Disclosure of fair value measurement of assets [line items]            
Loans 12,932     12,932   12,921
Measured at fair value | Level 2 | Interest rate contracts            
Derivative Assets            
Derivative Assets 9,483     9,483   8,666
Derivative Liabilities            
Derivative Liabilities 10,497     10,497   10,081
Measured at fair value | Level 2 | Foreign exchange contracts            
Derivative Assets            
Derivative Assets 25,413     25,413   30,474
Derivative Liabilities            
Derivative Liabilities 20,352     20,352   26,049
Measured at fair value | Level 2 | Commodity contracts            
Derivative Assets            
Derivative Assets 3,622     3,622   1,224
Derivative Liabilities            
Derivative Liabilities 3,231     3,231   1,412
Measured at fair value | Level 2 | Equity contracts            
Derivative Assets            
Derivative Assets 23,462     23,462   16,203
Derivative Liabilities            
Derivative Liabilities 29,310     29,310   20,793
Measured at fair value | Level 2 | Credit default swaps            
Derivative Assets            
Derivative Assets 28     28   1
Derivative Liabilities            
Derivative Liabilities 57     57   0
Measured at fair value | Level 3            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 5,821     5,821   5,824
FVOCI Securities 189     189   192
Loans 314     314   324
Other Assets 1,495     1,495   1,483
Deposits 0     0   0
Securities sold but not yet purchased 0     0   0
Other liabilities 135     135   0
Fair value liabilities 135     135   0
Derivative Assets            
Derivative Assets           25
Derivative Liabilities            
Derivative Liabilities 21     21   5
Measured at fair value | Level 3 | Canadian federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | Canadian provincial and municipal governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | U.S. federal government            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | U.S. states, municipalities and agencies            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | Other governments            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | NHA MBS, and U.S. agency MBS and CMO            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 0     0   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | Corporate debt            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 3     3   0
FVOCI Securities 0     0   0
Measured at fair value | Level 3 | Trading loans            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Measured at fair value | Level 3 | Corporate equity            
Disclosure of fair value measurement of assets [line items]            
Trading Securities 0     0   0
Total FVTPL securities 5,818     5,818   5,824
FVOCI Securities 189     189   192
Measured at fair value | Level 3 | Residential mortgages            
Disclosure of fair value measurement of assets [line items]            
Loans 0     0   0
Measured at fair value | Level 3 | Business and government loans            
Disclosure of fair value measurement of assets [line items]            
Loans           324
Measured at fair value | Level 3 | Interest rate contracts            
Derivative Assets            
Derivative Assets 0     0   0
Derivative Liabilities            
Derivative Liabilities 0     0   0
Measured at fair value | Level 3 | Foreign exchange contracts            
Derivative Assets            
Derivative Assets 19     19   2
Derivative Liabilities            
Derivative Liabilities 8     8   0
Measured at fair value | Level 3 | Commodity contracts            
Derivative Assets            
Derivative Assets 0     0   13
Derivative Liabilities            
Derivative Liabilities 8     8   0
Measured at fair value | Level 3 | Equity contracts            
Derivative Assets            
Derivative Assets 7     7   10
Derivative Liabilities            
Derivative Liabilities 5     5   5
Measured at fair value | Level 3 | Credit default swaps            
Derivative Assets            
Derivative Assets 0     0   0
Derivative Liabilities            
Derivative Liabilities $ 0     $ 0   $ 0