v3.26.1
Fair Value Measurements (Schedule of Fair Value Hierarchy for Assets and Liabilities) (Details) - CAD ($)
$ in Millions
Apr. 30, 2026
Oct. 31, 2025
Trading loans, securities, and other1    
Trading loans, securities, and other $ 231,680 $ 220,136
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 8,095 7,395
Derivatives    
Derivatives 74,835 82,972
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,299 6,986
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 128,612 126,369
Securities purchased under reverse repurchase agreements 220,120 247,078
FINANCIAL LIABILITIES    
Trading deposits 39,308 37,882
Derivatives    
Derivatives 74,532 79,356
Securitization liabilities at fair value 26,028 25,283
Financial liabilities designated at fair value through profit or loss 222,503 197,635
Obligations related to securities sold short 42,293 43,795
Obligations related to securities sold under repurchase agreements 218,392 221,150
Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 231,680 220,136
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 8,095 7,395
Derivatives    
Derivatives 74,835 82,972
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,299 6,986
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 128,612 126,369
Securities purchased under reverse repurchase agreements 6,901 7,574
FINANCIAL LIABILITIES    
Trading deposits 39,308 37,882
Derivatives    
Derivatives 74,532 79,356
Securitization liabilities at fair value 26,028 25,283
Financial liabilities designated at fair value through profit or loss 222,503 197,635
Obligations related to securities sold short 42,293 43,795
Obligations related to securities sold under repurchase agreements 11,106 11,557
Equity securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 92,611 87,909
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 3,335 3,047
Trading loans [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 30,540 30,032
Commodities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 33,246 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 7,314 7,051
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,299 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 781 344
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 393 288
Interest rate contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 9,766 11,004
Derivatives    
Derivatives 9,855 9,654
Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 40,990 53,609
Derivatives    
Derivatives 33,582 42,525
Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 87 44
Derivatives    
Derivatives 378 440
Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 16,484 12,696
Derivatives    
Derivatives 23,677 19,683
Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 7,508 5,619
Derivatives    
Derivatives 7,040 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 8,090 8,767
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 17,139 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 5,939 4,537
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 21,013 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 28,531 23,784
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 54,465 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 6,691 6,101
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 8,335 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 794 768
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,840 1,896
Canadian issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 7,631 6,762
Other issuers [member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 17,607 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 8,327 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 13,765 13,091
Level 1 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 132,343 129,307
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 536 465
Derivatives    
Derivatives 1,026 950
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 1,817 2,087
Securities purchased under reverse repurchase agreements 0 0
FINANCIAL LIABILITIES    
Trading deposits 0 0
Derivatives    
Derivatives 1,269 836
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 13,866 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 92,306 87,713
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,188 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 31,805 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 536 465
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 6 6
Derivatives    
Derivatives 4 6
Level 1 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 106 30
Derivatives    
Derivatives 75 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 179 162
Derivatives    
Derivatives 0 0
Level 1 of fair value hierarchy [member] | Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 735 752
Derivatives    
Derivatives 1,190 806
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 3,767 4,892
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 129 100
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 4,276 2,973
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 500 851
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 189 283
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 98,838 90,737
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 6,029 5,363
Derivatives    
Derivatives 73,733 82,011
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,299 6,986
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 124,652 122,371
Securities purchased under reverse repurchase agreements 6,901 7,574
FINANCIAL LIABILITIES    
Trading deposits 39,150 37,609
Derivatives    
Derivatives 73,038 78,229
Securitization liabilities at fair value 26,028 25,283
Financial liabilities designated at fair value through profit or loss 222,499 197,633
Obligations related to securities sold short 28,427 28,453
Obligations related to securities sold under repurchase agreements 11,106 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 280 171
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 4 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 30,114 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 1,441 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 5,249 5,019
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 7,299 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 780 344
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 393 288
Level 2 of fair value hierarchy [member] | Interest rate contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 9,749 10,990
Derivatives    
Derivatives 9,763 9,572
Level 2 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 40,883 53,576
Derivatives    
Derivatives 33,505 42,496
Level 2 of fair value hierarchy [member] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 87 44
Derivatives    
Derivatives 378 440
Level 2 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 16,305 12,534
Derivatives    
Derivatives 23,570 19,528
Level 2 of fair value hierarchy [member] | Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 6,709 4,867
Derivatives    
Derivatives 5,822 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 4,323 3,875
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 17,010 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 5,939 4,537
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 21,013 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 24,255 20,811
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 53,965 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 6,502 5,818
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 8,335 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 794 768
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,840 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 7,583 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 17,607 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 8,327 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 13,765 13,091
Level 3 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 499 92
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1,530 1,567
Derivatives    
Derivatives 76 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 2,143 1,911
Securities purchased under reverse repurchase agreements 0 0
FINANCIAL LIABILITIES    
Trading deposits 158 273
Derivatives    
Derivatives 225 291
Securitization liabilities at fair value 0 0
Financial liabilities designated at fair value through profit or loss 4 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 25 25
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 2,143 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 426 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 1,529 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 11 8
Derivatives    
Derivatives 88 76
Level 3 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 1 3
Derivatives    
Derivatives 2 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 0 0
Derivatives    
Derivatives 107 155
Level 3 of fair value hierarchy [member] | Commodity and other contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 64 0
Derivatives    
Derivatives 28 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 48 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 0 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