v3.24.1.1.u2
Fair Value Measurements (Schedule of Fair Value Hierarchy for Assets and Liabilities) (Details) - CAD ($)
$ in Millions
Apr. 30, 2024
Oct. 31, 2023
Trading loans, securities, and other1    
Trading loans, securities, and other $ 166,346 $ 152,090
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 5,646 7,340
Derivatives    
Derivatives 82,190 87,382
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 5,925 5,818
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 75,246 69,865
Securities purchased under reverse repurchase agreements 205,722 204,333
FINANCIAL LIABILITIES    
Trading deposits 31,221 30,980
Derivatives    
Derivatives 69,742 71,640
Securitization liabilities at fair value 17,653 14,422
Financial liabilities designated at fair value through profit or loss 188,105 192,130
Obligations related to securities sold short 38,145 44,661
Obligations related to securities sold under repurchase agreements 192,239 166,854
Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 166,346 152,090
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 5,646 7,340
Derivatives    
Derivatives 82,190 87,382
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 5,925 5,818
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 75,246 69,865
Securities purchased under reverse repurchase agreements 8,920 9,649
FINANCIAL LIABILITIES    
Trading deposits 31,221 30,980
Derivatives    
Derivatives 69,742 71,640
Securitization liabilities at fair value 17,653 14,422
Financial liabilities designated at fair value through profit or loss 188,105 192,130
Obligations related to securities sold short 38,145 44,661
Obligations related to securities sold under repurchase agreements 11,747 12,641
Equity securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 65,237 54,237
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 3,696 3,513
Interest Rate Contracts [Member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 21,091 22,910
Derivatives    
Derivatives 13,552 21,206
Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 52,113 57,413
Derivatives    
Derivatives 46,431 44,873
Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 4,959 4,897
Derivatives    
Derivatives 5,230 3,279
Commodity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 3,946 2,108
Derivatives    
Derivatives 3,730 2,110
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 2,983 3,845
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 5,925 5,818
Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 81 54
Derivatives    
Derivatives 799 172
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 2,663 3,495
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 206 421
Trading Loans [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 19,092 17,261
Commodities [Member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 12,556 8,411
Retained Interest 1 [Member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 2 3
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 9,390 8,811
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,683 1,498
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 7,482 7,445
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 20,586 19,940
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 7,552 9,145
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 18,607 18,210
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 1,964 1,698
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 2,211 2,277
Canadian Issuers [Member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 5,892 6,072
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 9,175 8,890
Other Issuers [Member] | Other debt securities [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 14,604 14,613
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 3,458 4,114
United State 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 22,575 24,394
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 15,624 11,002
Level 1 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 76,998 61,880
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 278 269
Derivatives    
Derivatives 661 407
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 1,388 1,133
Securities purchased under reverse repurchase agreements 0 0
FINANCIAL LIABILITIES    
Trading deposits 0 0
Derivatives    
Derivatives 694 290
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 2,117 1,329
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 65,210 54,186
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,388 1,133
Level 1 of fair value hierarchy [member] | Interest Rate Contracts [Member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 17
Derivatives    
Derivatives 1 16
Level 1 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 47 26
Derivatives    
Derivatives 49 19
Level 1 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 58 58
Derivatives    
Derivatives 0 7
Level 1 of fair value hierarchy [member] | Commodity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 556 306
Derivatives    
Derivatives 644 248
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 278 269
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] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 0
Derivatives    
Derivatives 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] | 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 11,749 7,620
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] | 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 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] | 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 39 72
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] | 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 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] | United State 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 2
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 89,310 90,068
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 4,218 6,091
Derivatives    
Derivatives 81,509 86,953
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 5,925 5,818
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 71,537 66,328
Securities purchased under reverse repurchase agreements 8,920 9,649
FINANCIAL LIABILITIES    
Trading deposits 30,311 29,995
Derivatives    
Derivatives 68,856 71,174
Securitization liabilities at fair value 17,653 14,422
Financial liabilities designated at fair value through profit or loss 188,031 192,108
Obligations related to securities sold short 36,028 43,332
Obligations related to securities sold under repurchase agreements 11,747 12,641
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 18 41
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1 3
Level 2 of fair value hierarchy [member] | Interest Rate Contracts [Member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 21,091 22,893
Derivatives    
Derivatives 13,403 21,064
Level 2 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 52,061 57,380
Derivatives    
Derivatives 46,370 44,841
Level 2 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 4,901 4,839
Derivatives    
Derivatives 5,207 3,251
Level 2 of fair value hierarchy [member] | Commodity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 3,375 1,787
Derivatives    
Derivatives 3,077 1,846
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 1,555 2,596
Financial assets designated at fair value through profit or loss    
Financial assets designated at fair value through profit or loss 5,925 5,818
Level 2 of fair value hierarchy [member] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 81 54
Derivatives    
Derivatives 799 172
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 2,663 3,495
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 206 421
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 19,092 17,261
Level 2 of fair value hierarchy [member] | Commodities [Member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 807 791
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 2 3
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 9,390 8,811
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 1,683 1,498
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 7,482 7,445
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 20,586 19,940
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 7,513 9,073
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 18,607 18,210
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 1,964 1,698
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 2,211 2,277
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 5,888 6,067
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 9,161 8,863
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 14,579 14,553
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 3,458 4,114
Level 2 of fair value hierarchy [member] | United State 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 22,575 24,325
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 15,624 11,002
Level 3 of fair value hierarchy [member] | Recurring fair value measurement [member]    
Trading loans, securities, and other1    
Trading loans, securities, and other 38 142
Non-trading financial assets at fair value through profit or loss    
Non-trading financial assets at fair value through profit or loss 1,150 980
Derivatives    
Derivatives 20 22
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 2,321 2,404
Securities purchased under reverse repurchase agreements 0 0
FINANCIAL LIABILITIES    
Trading deposits 910 985
Derivatives    
Derivatives 192 176
Securitization liabilities at fair value 0 0
Financial liabilities designated at fair value through profit or loss 74 22
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 9 10
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income 2,307 2,377
Level 3 of fair value hierarchy [member] | Interest Rate Contracts [Member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 0
Derivatives    
Derivatives 148 126
Level 3 of fair value hierarchy [member] | Foreign exchange contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 5 7
Derivatives    
Derivatives 12 13
Level 3 of fair value hierarchy [member] | Equity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 0
Derivatives    
Derivatives 23 21
Level 3 of fair value hierarchy [member] | Commodity contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 15 15
Derivatives    
Derivatives 9 16
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 1,150 980
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] | Credit contracts [member] | Recurring fair value measurement [member]    
Derivatives    
Derivatives 0 0
Derivatives    
Derivatives 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 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] | Trading Loans [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] | 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] | 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] | 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] | 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] | 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 4 5
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 14 27
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 25 60
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] | United State 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 67
Financial assets at fair value through other comprehensive income    
Financial assets at fair value through other comprehensive income $ 0 $ 0