v3.22.2.2
Results by Business Segment - Detailed Report of Segments (Detail) - CAD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Disclosure of operating segments [line items]    
Net interest income $ 22,717 $ 20,002
Non-interest income 26,268 29,691
Total revenue 48,985 49,693
Provision for credit losses 484 (753)
Insurance policyholder benefits, claims and acquisition expense 1,783 3,891
Non-interest expense 26,609 25,924
Net income (loss) before income taxes 20,109 20,631
Income taxes (recoveries) 4,302 4,581
Net income 15,807 16,050
Non-interest expense includes:    
Depreciation and amortization 2,634 2,563
Impairment of other intangibles 18 29
Total assets 1,917,219 1,706,323
Total assets include:    
Additions to premises and equipment and intangibles 3,678 2,197
Total liabilities 1,809,044 1,607,561
Canada [member]    
Disclosure of operating segments [line items]    
Net interest income 15,761 13,947
Non-interest income 13,508 15,454
Total revenue 29,269 29,401
Provision for credit losses 600 (203)
Insurance policyholder benefits, claims and acquisition expense (466) 2,036
Non-interest expense 13,648 12,897
Net income (loss) before income taxes 15,487 14,671
Income taxes (recoveries) 3,615 3,599
Net income 11,872 11,072
Non-interest expense includes:    
Depreciation and amortization 1,617 1,594
Impairment of other intangibles 11 16
Total assets 992,485 964,747
Total assets include:    
Additions to premises and equipment and intangibles 1,263 1,238
Total liabilities 884,394 866,287
United States [member]    
Disclosure of operating segments [line items]    
Net interest income 5,423 4,447
Non-interest income 6,364 8,083
Total revenue 11,787 12,530
Provision for credit losses 60 (277)
Non-interest expense 9,006 9,107
Net income (loss) before income taxes 2,721 3,700
Income taxes (recoveries) 452 649
Net income 2,269 3,051
Non-interest expense includes:    
Depreciation and amortization 776 728
Impairment of other intangibles 5 11
Total assets 570,255 454,949
Total assets include:    
Additions to premises and equipment and intangibles 666 739
Total liabilities 570,266 454,903
Other International [member]    
Disclosure of operating segments [line items]    
Net interest income 1,533 1,608
Non-interest income 6,396 6,154
Total revenue 7,929 7,762
Provision for credit losses (176) (273)
Insurance policyholder benefits, claims and acquisition expense 2,249 1,855
Non-interest expense 3,955 3,920
Net income (loss) before income taxes 1,901 2,260
Income taxes (recoveries) 235 333
Net income 1,666 1,927
Non-interest expense includes:    
Depreciation and amortization 241 241
Impairment of other intangibles 2 2
Total assets 354,479 286,627
Total assets include:    
Additions to premises and equipment and intangibles 1,749 220
Total liabilities 354,384 286,371
Operating segments [member] | Personal & Commercial Banking [member]    
Disclosure of operating segments [line items]    
Net interest income 14,019 12,621
Non-interest income 6,124 5,725
Total revenue 20,143 18,346
Provision for credit losses 463 (187)
Non-interest expense 8,437 7,978
Net income (loss) before income taxes 11,243 10,555
Income taxes (recoveries) 2,873 2,708
Net income 8,370 7,847
Non-interest expense includes:    
Depreciation and amortization 942 923
Impairment of other intangibles 11 5
Total assets 602,824 549,702
Total assets include:    
Additions to premises and equipment and intangibles 394 503
Total liabilities 602,741 549,619
Operating segments [member] | Wealth Management [member]    
Disclosure of operating segments [line items]    
Net interest income 3,634 2,689
Non-interest income 11,215 10,607
Total revenue 14,849 13,296
Provision for credit losses 34 (47)
Non-interest expense 10,701 9,929
Net income (loss) before income taxes 4,114 3,414
Income taxes (recoveries) 970 788
Net income 3,144 2,626
Non-interest expense includes:    
Depreciation and amortization 931 883
Impairment of other intangibles 2 3
Total assets 174,964 148,990
Total assets include:    
Additions to premises and equipment and intangibles 2,265 752
Total liabilities 174,986 149,096
Operating segments [member] | Insurance [member]    
Disclosure of operating segments [line items]    
Non-interest income 3,510 5,600
Total revenue 3,510 5,600
Provision for credit losses   (1)
Insurance policyholder benefits, claims and acquisition expense 1,783 3,891
Non-interest expense 588 596
Net income (loss) before income taxes 1,139 1,114
Income taxes (recoveries) 282 225
Net income 857 889
Non-interest expense includes:    
Depreciation and amortization 57 59
Impairment of other intangibles 2 1
Total assets 21,918 22,724
Total assets include:    
Additions to premises and equipment and intangibles 49 48
Total liabilities 22,588 22,966
Operating segments [member] | Investor & Treasury Services [member]    
Disclosure of operating segments [line items]    
Net interest income 498 460
Non-interest income 1,725 1,704
Total revenue 2,223 2,164
Provision for credit losses (3) (8)
Non-interest expense 1,569 1,589
Net income (loss) before income taxes 657 583
Income taxes (recoveries) 144 143
Net income 513 440
Non-interest expense includes:    
Depreciation and amortization 190 197
Impairment of other intangibles 1 2
Total assets 263,362 240,055
Total assets include:    
Additions to premises and equipment and intangibles 84 80
Total liabilities 263,206 239,960
Operating segments [member] | Capital Markets [member]    
Disclosure of operating segments [line items]    
Net interest income 4,698 4,553
Non-interest income 4,422 5,634
Total revenue 9,120 10,187
Provision for credit losses (11) (509)
Non-interest expense 5,561 5,427
Net income (loss) before income taxes 3,570 5,269
Income taxes (recoveries) 649 1,082
Net income 2,921 4,187
Non-interest expense includes:    
Depreciation and amortization 502 497
Impairment of other intangibles 2 18
Total assets 794,032 692,278
Total assets include:    
Additions to premises and equipment and intangibles 256 355
Total liabilities 793,826 691,767
Unallocated amounts [member]    
Disclosure of operating segments [line items]    
Net interest income (132) (321)
Non-interest income (728) 421
Total revenue (860) 100
Provision for credit losses 1 (1)
Non-interest expense (247) 405
Net income (loss) before income taxes (614) (304)
Income taxes (recoveries) (616) (365)
Net income 2 61
Non-interest expense includes:    
Depreciation and amortization 12 4
Total assets 60,119 52,574
Total assets include:    
Additions to premises and equipment and intangibles 630 459
Total liabilities $ (48,303) $ (45,847)