v3.22.2.2
Fair value of financial instrument - Summary of Fair Value for Financial Instruments Carried at Amortized Cost and Classified Using the Fair Value Hierarchy (Detail) - CAD ($)
$ in Millions
Oct. 31, 2022
Oct. 31, 2021
Disclosure of fair value measurement of assets and liabilities [line Items]    
Interest-bearing deposits with banks $ 108,011 $ 79,638
Investment securities 318,223 284,724
Assets purchased under reverse repurchase agreements and securities borrowed 317,845 307,903
Deposits    
Personal 404,932 362,488
Business and government 759,870 696,353
Bank 44,012 41,990
Deposits 1,208,814 1,100,831
Obligations related to assets sold under repurchase agreements and securities loaned 273,947 262,201
Subordinated debentures 10,025 9,593
Level 3 [member]    
Loans    
Fair value 4,553 3,594
Deposits    
Financial liabilities 2,347 1,548
Fair value of financial instruments not measured at fair value [member] | Fair Value Always Approximates Carrying Value [member]    
Disclosure of fair value measurement of assets and liabilities [line Items]    
Interest-bearing deposits with banks 23,543 22,742
Assets purchased under reverse repurchase agreements and securities borrowed 42,224 31,368
Loans    
Retail 70,162 68,377
Wholesale 17,943 16,228
Financial assets, excluding other financial assets 88,105 84,605
Other assets 72,198 57,859
Fair value 226,070 196,574
Deposits    
Personal 271,414 272,675
Business and government 406,045 418,185
Bank 22,638 16,943
Deposits 700,097 707,803
Obligations related to assets sold under repurchase agreements and securities loaned 25,112 26,054
Other liabilities 77,801 55,495
Financial liabilities 803,010 789,352
Fair value of financial instruments not measured at fair value [member] | Fair value may not approximate carrying value [member]    
Disclosure of fair value measurement of assets and liabilities [line Items]    
Investment securities 70,073 66,823
Assets purchased under reverse repurchase agreements and securities borrowed 10,956 11,524
Loans    
Retail 451,266 433,900
Wholesale 235,873 188,455
Financial assets, excluding other financial assets 687,139 622,355
Other assets 886 624
Fair value 769,054 701,326
Deposits    
Personal 108,982 71,365
Business and government 199,057 146,921
Bank 14,120 7,800
Deposits 322,159 226,086
Other liabilities 12,359 9,254
Subordinated debentures 9,668 9,601
Financial liabilities 344,186 244,941
Fair value of financial instruments not measured at fair value [member] | Fair value may not approximate carrying value [member] | Level 1 [member]    
Disclosure of fair value measurement of assets and liabilities [line Items]    
Investment securities   1,025
Loans    
Fair value   1,025
Fair value of financial instruments not measured at fair value [member] | Fair value may not approximate carrying value [member] | Level 2 [member]    
Disclosure of fair value measurement of assets and liabilities [line Items]    
Investment securities 70,073 65,798
Assets purchased under reverse repurchase agreements and securities borrowed 10,956 11,524
Loans    
Retail 446,809 429,672
Wholesale 230,880 184,055
Financial assets, excluding other financial assets 677,689 613,727
Other assets 716 489
Fair value 759,434 691,538
Deposits    
Personal 108,549 70,908
Business and government 198,265 146,334
Bank 14,120 7,792
Deposits 320,934 225,034
Other liabilities 1,554 1,256
Subordinated debentures 9,608 9,545
Financial liabilities 332,096 235,835
Fair value of financial instruments not measured at fair value [member] | Fair value may not approximate carrying value [member] | Level 3 [member]    
Loans    
Retail 4,457 4,228
Wholesale 4,993 4,400
Financial assets, excluding other financial assets 9,450 8,628
Other assets 170 135
Fair value 9,620 8,763
Deposits    
Personal 433 457
Business and government 792 587
Bank   8
Deposits 1,225 1,052
Other liabilities 10,805 7,998
Subordinated debentures 60 56
Financial liabilities 12,090 9,106
Fair value of financial instruments not measured at fair value [member] | At fair value [member]    
Disclosure of fair value measurement of assets and liabilities [line Items]    
Interest-bearing deposits with banks 23,543 22,742
Investment securities 70,073 66,823
Assets purchased under reverse repurchase agreements and securities borrowed 53,180 42,892
Loans    
Retail 521,428 502,277
Wholesale 253,816 204,683
Financial assets, excluding other financial assets 775,244 706,960
Other assets 73,084 58,483
Fair value 995,124 897,900
Deposits    
Personal 380,396 344,040
Business and government 605,102 565,106
Bank 36,758 24,743
Deposits 1,022,256 933,889
Obligations related to assets sold under repurchase agreements and securities loaned 25,112 26,054
Other liabilities 90,160 64,749
Subordinated debentures 9,668 9,601
Financial liabilities $ 1,147,196 $ 1,034,293