v3.26.1
Fair Value Measurements (Schedule of Fair Value Hierarchy for Assets and Liabilities) (Details) - CAD ($)
$ in Millions
Jul. 31, 2026
Oct. 31, 2025
Trading loans, securities, and other1    
Trading loans, securities, and other $ 218,133 $ 220,136
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 9,534 7,395
Derivatives    
Derivatives 80,055 82,972
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,071 6,986
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 135,092 126,369
Securities purchased under reverse repurchase agreements 231,368 247,078
FINANCIAL LIABILITIES    
Trading deposits 43,486 37,882
Derivatives    
Derivatives 75,308 79,356
Securitization liabilities at fair value 26,491 25,283
Financial liabilities designated at fair value through profit or loss 213,022 197,635
Obligations related to securities sold short 41,924 43,795
Obligations related to securities sold under repurchase agreements 228,932 221,150
Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 218,133 220,136
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 9,534 7,395
Derivatives    
Derivatives 80,055 82,972
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,071 6,986
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 135,092 126,369
Securities purchased under reverse repurchase agreements 146,167 7,574
FINANCIAL LIABILITIES    
Trading deposits 43,486 37,882
Derivatives    
Derivatives 75,308 79,356
Securitization liabilities at fair value 26,491 25,283
Financial liabilities designated at fair value through profit or loss 213,022 197,635
Obligations related to securities sold short 41,924 43,795
Obligations related to securities sold under repurchase agreements 172,099 11,557
Equity securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 92,383 87,909
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 3,764 3,047
Trading loans [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 32,380 30,032
Commodities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 24,682 34,967
Retained interest 1 [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 1
Securities [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 8,295 7,051
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,071 6,986
Loans 1 [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1,239 344
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 374 288
Interest rate contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 12,099 11,004
Derivatives    
Derivatives 11,978 9,654
Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 42,526 53,609
Derivatives    
Derivatives 32,370 42,525
Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 99 44
Derivatives    
Derivatives 349 440
Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 19,907 12,696
Derivatives    
Derivatives 25,409 19,683
Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 5,424 5,619
Derivatives    
Derivatives 5,202 7,054
Canadian government federal debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 7,707 8,767
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 16,478 15,891
Canadian government provincial debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 5,994 4,537
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 24,931 21,080
United States federal state municipal governments and agencies debt [Member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 23,676 23,784
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 54,270 54,492
Other OECD government-guaranteed debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 5,892 6,101
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 9,791 7,875
Mortgage-backed securities [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 699 768
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,646 1,896
Canadian issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 7,332 6,762
Other issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 17,388 16,508
Assets backed security [Member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 8,374 8,709
Corporate and other debt [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 15,464 13,091
Level 1 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 122,740 129,307
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 704 465
Derivatives    
Derivatives 536 950
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,773 2,087
Securities purchased under reverse repurchase agreements 0 0
FINANCIAL LIABILITIES    
Trading deposits 0 0
Derivatives    
Derivatives 711 836
Securitization liabilities at fair value 0 0
Financial liabilities designated at fair value through profit or loss 0 0
Obligations related to securities sold short 14,451 15,342
Obligations related to securities sold under repurchase agreements 0 0
Level 1 of fair value hierarchy [member] | Equity securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 92,128 87,713
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,153 1,136
Level 1 of fair value hierarchy [member] | Trading loans [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Level 1 of fair value hierarchy [member] | Commodities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 23,143 33,446
Level 1 of fair value hierarchy [member] | Retained interest 1 [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Level 1 of fair value hierarchy [member] | Securities [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 704 465
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 0 0
Level 1 of fair value hierarchy [member] | Loans 1 [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 1 of fair value hierarchy [member] | Interest rate contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 3 6
Derivatives    
Derivatives 3 6
Level 1 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 73 30
Derivatives    
Derivatives 68 24
Level 1 of fair value hierarchy [member] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 0
Derivatives    
Derivatives 0 0
Level 1 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 115 162
Derivatives    
Derivatives 0 0
Level 1 of fair value hierarchy [member] | Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 345 752
Derivatives    
Derivatives 640 806
Level 1 of fair value hierarchy [member] | Canadian government federal debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 4,750 4,892
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 99 100
Level 1 of fair value hierarchy [member] | Canadian government provincial debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 1 of fair value hierarchy [member] | United States federal state municipal governments and agencies debt [Member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 2,215 2,973
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 521 851
Level 1 of fair value hierarchy [member] | Other OECD government-guaranteed debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 504 283
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 1 of fair value hierarchy [member] | Mortgage-backed securities [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 1 of fair value hierarchy [member] | Canadian issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Level 1 of fair value hierarchy [member] | Other issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Level 1 of fair value hierarchy [member] | Assets backed security [Member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 1 of fair value hierarchy [member] | Corporate and other debt [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 2 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 94,926 90,737
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 7,261 5,363
Derivatives    
Derivatives 79,471 82,011
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,071 6,986
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 130,737 122,371
Securities purchased under reverse repurchase agreements 146,167 7,574
FINANCIAL LIABILITIES    
Trading deposits 43,221 37,609
Derivatives    
Derivatives 74,495 78,229
Securitization liabilities at fair value 26,491 25,283
Financial liabilities designated at fair value through profit or loss 213,019 197,633
Obligations related to securities sold short 27,473 28,453
Obligations related to securities sold under repurchase agreements 172,099 11,557
Level 2 of fair value hierarchy [member] | Equity securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 229 171
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 29 0
Level 2 of fair value hierarchy [member] | Trading loans [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 31,997 30,032
Level 2 of fair value hierarchy [member] | Commodities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 1,539 1,521
Level 2 of fair value hierarchy [member] | Retained interest 1 [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 1
Level 2 of fair value hierarchy [member] | Securities [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 6,023 5,019
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,071 6,986
Level 2 of fair value hierarchy [member] | Loans 1 [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1,238 344
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 374 288
Level 2 of fair value hierarchy [member] | Interest rate contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 12,084 10,990
Derivatives    
Derivatives 11,899 9,572
Level 2 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 42,448 53,576
Derivatives    
Derivatives 32,295 42,496
Level 2 of fair value hierarchy [member] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 99 44
Derivatives    
Derivatives 349 440
Level 2 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 19,781 12,534
Derivatives    
Derivatives 25,409 19,528
Level 2 of fair value hierarchy [member] | Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 5,059 4,867
Derivatives    
Derivatives 4,543 6,193
Level 2 of fair value hierarchy [member] | Canadian government federal debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 2,957 3,875
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 16,379 15,791
Level 2 of fair value hierarchy [member] | Canadian government provincial debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 5,994 4,537
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 24,931 21,080
Level 2 of fair value hierarchy [member] | United States federal state municipal governments and agencies debt [Member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 21,461 20,811
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 53,749 53,641
Level 2 of fair value hierarchy [member] | Other OECD government-guaranteed debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 5,388 5,818
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 9,791 7,875
Level 2 of fair value hierarchy [member] | Mortgage-backed securities [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 699 768
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,646 1,896
Level 2 of fair value hierarchy [member] | Canadian issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 7,279 6,695
Level 2 of fair value hierarchy [member] | Other issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 17,383 16,508
Level 2 of fair value hierarchy [member] | Assets backed security [Member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 8,374 8,709
Level 2 of fair value hierarchy [member] | Corporate and other debt [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 15,464 13,091
Level 3 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 467 92
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1,569 1,567
Derivatives    
Derivatives 48 11
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 2,582 1,911
Securities purchased under reverse repurchase agreements 0 0
FINANCIAL LIABILITIES    
Trading deposits 265 273
Derivatives    
Derivatives 102 291
Securitization liabilities at fair value 0 0
Financial liabilities designated at fair value through profit or loss 3 2
Obligations related to securities sold short 0 0
Obligations related to securities sold under repurchase agreements 0 0
Level 3 of fair value hierarchy [member] | Equity securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 26 25
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 2,582 1,911
Level 3 of fair value hierarchy [member] | Trading loans [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 383 0
Level 3 of fair value hierarchy [member] | Commodities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Level 3 of fair value hierarchy [member] | Retained interest 1 [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Level 3 of fair value hierarchy [member] | Securities [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1,568 1,567
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 0 0
Level 3 of fair value hierarchy [member] | Loans 1 [member] | Recurring fair value measurement [member]    
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | Interest rate contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 12 8
Derivatives    
Derivatives 76 76
Level 3 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 5 3
Derivatives    
Derivatives 7 5
Level 3 of fair value hierarchy [member] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 0
Derivatives    
Derivatives 0 0
Level 3 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 11 0
Derivatives    
Derivatives 0 155
Level 3 of fair value hierarchy [member] | Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 20 0
Derivatives    
Derivatives 19 55
Level 3 of fair value hierarchy [member] | Canadian government federal debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | Canadian government provincial debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | United States federal state municipal governments and agencies debt [Member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | Other OECD government-guaranteed debt [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | Mortgage-backed securities [member] | Government and government-related securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 0 0
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | Canadian issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 53 67
Level 3 of fair value hierarchy [member] | Other issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 5 0
Level 3 of fair value hierarchy [member] | Assets backed security [Member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 0 0
Level 3 of fair value hierarchy [member] | Corporate and other debt [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income $ 0 $ 0