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IFRS 7 - Disclosure - Liquidity Risk - Summary of Contractual Maturity Profile of On-Balance Sheet Assets, Liabilities and Equity at their Carrying Values (Detail) - CAD ($) $ in Millions | Jan. 31, 2025 | Oct. 31, 2024 | Jan. 31, 2024 | Oct. 31, 2023
--- | --- | --- | --- | ---
Assets |  |  |  |  |  |  |
Cash and non-interest-bearing deposits with banks |  | $ 13,530 | [1] | $ 8,565 | $ 8,910 | [1] | $ 20,816
Interest-bearing deposits with banks |  | 34,281 |  | 39,499 |  |  |
Securities |  | 273,041 |  | 254,345 |  |  |
Cash collateral on securities borrowed |  | 18,609 |  | 17,028 |  |  |
Securities purchased under resale agreements |  | 86,143 |  | 83,721 |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 282,675 |  | 280,672 |  |  |
Personal |  | 46,482 |  | 46,681 |  |  |
Credit card |  | 20,182 |  | 20,551 |  |  |
Business and government | [2] | 222,884 |  | 214,305 |  |  |
Allowance for credit losses |  | (4,104) |  | (3,917) | (4,020) |  |
Derivative instruments |  | 38,572 |  | 36,435 |  |  |
Other assets |  | 50,169 |  |  |  |  |
Total assets |  | 1,082,464 |  | 1,041,985 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 782,176 |  | 764,857 |  |  |
Obligations related to securities sold short |  | 20,778 |  | 21,642 |  |  |
Cash collateral on securities lent |  | 8,914 |  | 7,997 |  |  |
Obligations related to securities sold under repurchase agreements |  | 127,636 |  | 110,153 |  |  |
Derivative instruments |  | 44,902 |  | 40,654 |  |  |
Other liabilities |  | 28,929 |  |  |  |  |
Subordinated indebtedness |  | 7,498 |  | 7,465 |  |  |
Equity |  | 61,631 |  | 59,007 | $ 54,326 |  |
Total liabilities and equities |  | 1,082,464 |  | 1,041,985 |  |  |
Less than 1 month [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Cash and non-interest-bearing deposits with banks |  | 13,530 |  |  |  |  |
Interest-bearing deposits with banks |  | 34,281 |  |  |  |  |
Securities |  | 7,468 |  |  |  |  |
Cash collateral on securities borrowed |  | 18,609 |  |  |  |  |
Securities purchased under resale agreements |  | 49,767 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 5,657 |  |  |  |  |
Personal |  | 1,011 |  |  |  |  |
Credit card |  | 424 |  |  |  |  |
Business and government |  | 3,718 |  |  |  |  |
Derivative instruments |  | 3,248 |  |  |  |  |
Total assets |  | 137,713 |  | 130,008 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 47,327 |  |  |  |  |
Obligations related to securities sold short |  | 20,778 |  |  |  |  |
Cash collateral on securities lent |  | 8,914 |  |  |  |  |
Obligations related to securities sold under repurchase agreements |  | 93,959 |  |  |  |  |
Derivative instruments |  | 3,698 |  |  |  |  |
Other liabilities |  | 52 |  |  |  |  |
Total liabilities and equities |  | 174,728 |  | 188,502 |  |  |
Later than one months and not later than three months [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 8,301 |  |  |  |  |
Securities purchased under resale agreements |  | 16,203 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 12,463 |  |  |  |  |
Personal |  | 693 |  |  |  |  |
Credit card |  | 848 |  |  |  |  |
Business and government |  | 4,965 |  |  |  |  |
Derivative instruments |  | 4,619 |  |  |  |  |
Total assets |  | 48,092 |  | 45,680 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 53,168 |  |  |  |  |
Obligations related to securities sold under repurchase agreements |  | 31,970 |  |  |  |  |
Derivative instruments |  | 5,503 |  |  |  |  |
Other liabilities |  | 47 |  |  |  |  |
Total liabilities and equities |  | 90,688 |  | 48,833 |  |  |
3 - 6 months [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 15,558 |  |  |  |  |
Securities purchased under resale agreements |  | 12,705 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 17,892 |  |  |  |  |
Personal |  | 752 |  |  |  |  |
Credit card |  | 1,272 |  |  |  |  |
Business and government |  | 16,769 |  |  |  |  |
Derivative instruments |  | 3,336 |  |  |  |  |
Total assets |  | 68,284 |  | 57,993 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 57,862 |  |  |  |  |
Obligations related to securities sold under repurchase agreements |  | 412 |  |  |  |  |
Derivative instruments |  | 3,353 |  |  |  |  |
Other liabilities |  | 70 |  |  |  |  |
Total liabilities and equities |  | 61,697 |  | 75,616 |  |  |
6 - 9 months [Member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 9,611 |  |  |  |  |
Securities purchased under resale agreements |  | 3,915 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 14,262 |  |  |  |  |
Personal |  | 948 |  |  |  |  |
Credit card |  | 1,272 |  |  |  |  |
Business and government |  | 15,048 |  |  |  |  |
Derivative instruments |  | 2,223 |  |  |  |  |
Total assets |  | 47,279 |  | 52,094 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 44,816 |  |  |  |  |
Obligations related to securities sold under repurchase agreements |  | 141 |  |  |  |  |
Derivative instruments |  | 2,605 |  |  |  |  |
Other liabilities |  | 69 |  |  |  |  |
Total liabilities and equities |  | 47,631 |  | 49,168 |  |  |
9 - 12 months [Member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 14,995 |  |  |  |  |
Securities purchased under resale agreements |  | 2,247 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 27,972 |  |  |  |  |
Personal |  | 666 |  |  |  |  |
Credit card |  | 1,272 |  |  |  |  |
Business and government |  | 15,655 |  |  |  |  |
Derivative instruments |  | 3,913 |  |  |  |  |
Total assets |  | 66,720 |  | 61,184 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 45,255 |  |  |  |  |
Obligations related to securities sold under repurchase agreements |  | 500 |  |  |  |  |
Derivative instruments |  | 3,916 |  |  |  |  |
Other liabilities |  | 69 |  |  |  |  |
Total liabilities and equities |  | 49,740 |  | 46,158 |  |  |
1 - 2 years [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 32,005 |  |  |  |  |
Securities purchased under resale agreements |  | 1,295 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 90,598 |  |  |  |  |
Personal |  | 627 |  |  |  |  |
Credit card |  | 5,086 |  |  |  |  |
Business and government |  | 54,962 |  |  |  |  |
Derivative instruments |  | 5,950 |  |  |  |  |
Total assets |  | 190,523 |  | 186,218 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 54,037 |  |  |  |  |
Obligations related to securities sold under repurchase agreements |  | 654 |  |  |  |  |
Derivative instruments |  | 8,124 |  |  |  |  |
Other liabilities |  | 270 |  |  |  |  |
Total liabilities and equities |  | 63,085 |  | 55,388 |  |  |
2 - 5 years [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 62,839 |  |  |  |  |
Securities purchased under resale agreements |  | 7 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 102,630 |  |  |  |  |
Personal |  | 4,803 |  |  |  |  |
Credit card |  | 10,008 |  |  |  |  |
Business and government |  | 78,595 |  |  |  |  |
Derivative instruments |  | 8,613 |  |  |  |  |
Total assets |  | 267,495 |  | 260,975 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 66,119 |  |  |  |  |
Derivative instruments |  | 6,300 |  |  |  |  |
Other liabilities |  | 611 |  |  |  |  |
Subordinated indebtedness |  | 34 |  |  |  |  |
Total liabilities and equities |  | 73,064 |  | 73,705 |  |  |
Over 5 years [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 49,654 |  |  |  |  |
Securities purchased under resale agreements |  | 4 |  |  |  |  |
Loans |  |  |  |  |  |  |
Residential mortgages |  | 11,201 |  |  |  |  |
Personal |  | 5,352 |  |  |  |  |
Business and government |  | 20,704 |  |  |  |  |
Derivative instruments |  | 6,670 |  |  |  |  |
Total assets |  | 93,585 |  | 101,546 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 22,582 |  |  |  |  |
Derivative instruments |  | 11,398 |  |  |  |  |
Other liabilities |  | 842 |  |  |  |  |
Subordinated indebtedness |  | 7,464 |  |  |  |  |
Total liabilities and equities |  | 42,286 |  | 39,445 |  |  |
No specific maturity [member] |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Securities |  | 72,610 |  |  |  |  |
Loans |  |  |  |  |  |  |
Personal |  | 31,630 |  |  |  |  |
Business and government |  | 12,468 |  |  |  |  |
Allowance for credit losses |  | (4,104) |  |  |  |  |
Other assets |  | 50,169 |  |  |  |  |
Total assets |  | 162,773 |  | 146,287 |  |  |
Liabilities |  |  |  |  |  |  |
Deposits |  | 391,010 |  |  |  |  |
Derivative instruments |  | 5 |  |  |  |  |
Other liabilities |  | 26,899 |  |  |  |  |
Equity |  | 61,631 |  |  |  |  |
Total liabilities and equities |  | $ 479,545 |  | $ 465,170 |  |  |
[1] | Includes restricted cash of $489 million (January 31, 2024: $498 million) and interest-bearing demand deposits with Bank of Canada.
[2] | Includes customers’ liability under acceptances of $10 million (October 31, 2024: $6 million) in business and government loans and acceptances of $10 million (October 31, 2024: $6 million) in other liabilities. Prior period amounts have been revised to conform to the current period presentation.

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- Definition The amount of liabilities that are subordinate to other liabilities with respect to claims. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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