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Operating Segments - Summary of Bank's Financial Results by Geographic Region (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2025 | Oct. 31, 2024
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income | [1] | $ 21,522 |  | $ 19,252 |
Non-interest income | [2] | 16,219 | [3] | 14,418 | [4]
Total revenues |  | 37,741 |  | 33,670 |
Non-interest expenses |  | 22,518 |  | 19,695 |
Income tax expense |  | 2,751 |  | 2,032 |
Net income |  | 7,758 |  | 7,892 |
Net income attributable to non-controlling interests in subsidiaries |  | (31) |  | 134 |
Net income attributable to equity holders of the Bank |  | 7,789 |  | 7,758 |
Total average assets |  | 1,465,000 |  | 1,419,000 |
Total average liabilities |  | 1,379,000 |  | 1,338,000 |
Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 21,522 |  | 19,252 | [5]
Non-interest income |  | 16,219 | [6] | 14,418 | [5],[7]
Total revenues | [8] | 37,741 |  | 33,670 | [5]
Provision for credit losses |  | 4,714 |  | 4,051 | [5]
Non-interest expenses |  | 22,518 |  | 19,695 | [5]
Income tax expense |  | 2,751 |  | 2,032 | [5]
Net income |  | 7,758 |  | 7,892 | [5]
Net income attributable to non-controlling interests in subsidiaries |  | (31) |  | 134 | [5]
Net income attributable to equity holders of the Bank |  | 7,789 |  | 7,758 | [5]
Total average assets |  | 1,465,000 |  | 1,419,000 | [5]
Total average liabilities |  | 1,379,000 |  | 1,338,000 | [5]
Canada [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 11,378 |  | 9,207 | [5]
Non-interest income |  | 9,352 | [6] | 8,535 | [5],[7]
Total revenues | [8] | 20,730 |  | 17,742 | [5]
Provision for credit losses |  | 2,338 |  | 1,701 | [5]
Non-interest expenses |  | 13,660 |  | 11,207 | [5]
Income tax expense |  | 1,532 |  | 1,002 | [5]
Net income |  | 3,200 |  | 3,832 | [5]
Net income attributable to non-controlling interests in subsidiaries |  | (200) |  |  |
Net income attributable to equity holders of the Bank |  | 3,400 |  | 3,832 | [5]
Total average assets |  | 899,000 |  | 874,000 | [5]
Total average liabilities |  | 889,000 |  | 854,000 | [5]
United States [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 799 |  | 664 | [5]
Non-interest income |  | 2,165 | [6] | 1,578 | [5],[7]
Total revenues | [8] | 2,964 |  | 2,242 | [5]
Provision for credit losses |  | 67 |  | 28 | [5]
Non-interest expenses |  | 1,591 |  | 1,309 | [5]
Income tax expense |  | 189 |  | 146 | [5]
Net income |  | 1,117 |  | 759 | [5]
Net income attributable to equity holders of the Bank |  | 1,117 |  | 759 | [5]
Total average assets |  | 237,000 |  | 218,000 | [5]
Total average liabilities |  | 187,000 |  | 189,000 | [5]
Mexico [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 2,405 |  | 2,397 | [5]
Non-interest income |  | 1,014 | [6] | 1,032 | [5],[7]
Total revenues | [8] | 3,419 |  | 3,429 | [5]
Provision for credit losses |  | 552 |  | 380 | [5]
Non-interest expenses |  | 1,822 |  | 1,867 | [5]
Income tax expense |  | 264 |  | 280 | [5]
Net income |  | 781 |  | 902 | [5]
Net income attributable to non-controlling interests in subsidiaries |  | 23 |  | 24 | [5]
Net income attributable to equity holders of the Bank |  | 758 |  | 878 | [5]
Total average assets |  | 60,000 |  | 64,000 | [5]
Total average liabilities |  | 55,000 |  | 59,000 | [5]
Peru [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 1,334 |  | 1,422 | [5]
Non-interest income |  | 588 | [6] | 546 | [5],[7]
Total revenues | [8] | 1,922 |  | 1,968 | [5]
Provision for credit losses |  | 368 |  | 501 | [5]
Non-interest expenses |  | 885 |  | 869 | [5]
Income tax expense |  | 126 |  | 140 | [5]
Net income |  | 543 |  | 458 | [5]
Net income attributable to non-controlling interests in subsidiaries |  | 7 |  | 3 | [5]
Net income attributable to equity holders of the Bank |  | 536 |  | 455 | [5]
Total average assets |  | 29,000 |  | 27,000 | [5]
Total average liabilities |  | 22,000 |  | 21,000 | [5]
Chile [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 1,993 |  | 2,020 | [5]
Non-interest income |  | 571 | [6] | 455 | [5],[7]
Total revenues | [8] | 2,564 |  | 2,475 | [5]
Provision for credit losses |  | 748 |  | 626 | [5]
Non-interest expenses |  | 1,168 |  | 1,143 | [5]
Income tax expense |  | 79 |  | 119 | [5]
Net income |  | 569 |  | 587 | [5]
Net income attributable to non-controlling interests in subsidiaries |  | 7 |  | 42 | [5]
Net income attributable to equity holders of the Bank |  | 562 |  | 545 | [5]
Total average assets |  | 55,000 |  | 56,000 | [5]
Total average liabilities |  | 50,000 |  | 53,000 | [5]
Colombia [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 717 |  | 690 | [5]
Non-interest income |  | 479 | [6] | 486 | [5],[7]
Total revenues | [8] | 1,196 |  | 1,176 | [5]
Provision for credit losses |  | 378 |  | 561 | [5]
Non-interest expenses |  | 750 |  | 794 | [5]
Income tax expense |  | 38 |  | (49) | [5]
Net income |  | 30 |  | (130) | [5]
Net income attributable to non-controlling interests in subsidiaries |  | 9 |  | (50) | [5]
Net income attributable to equity holders of the Bank |  | 21 |  | (80) | [5]
Total average assets |  | 14,000 |  | 14,000 | [5]
Total average liabilities |  | 14,000 |  | 14,000 | [5]
Caribbean And Central America [Member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 1,931 |  | 1,842 | [5]
Non-interest income |  | 1,295 | [6] | 1,180 | [5],[7]
Total revenues | [8] | 3,226 |  | 3,022 | [5]
Provision for credit losses |  | 196 |  | 150 | [5]
Non-interest expenses |  | 1,508 |  | 1,454 | [5]
Income tax expense |  | 450 |  | 303 | [5]
Net income |  | 1,072 |  | 1,115 | [5]
Net income attributable to non-controlling interests in subsidiaries |  | 123 |  | 115 | [5]
Net income attributable to equity holders of the Bank |  | 949 |  | 1,000 | [5]
Total average assets |  | 38,000 |  | 35,000 | [5]
Total average liabilities |  | 35,000 |  | 32,000 | [5]
Other International [member] | Operating segments [member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net interest income |  | 965 |  | 1,010 | [5]
Non-interest income |  | 755 | [6] | 606 | [5],[7]
Total revenues | [8] | 1,720 |  | 1,616 | [5]
Provision for credit losses |  | 67 |  | 104 | [5]
Non-interest expenses |  | 1,134 |  | 1,052 | [5]
Income tax expense |  | 73 |  | 91 | [5]
Net income |  | 446 |  | 369 | [5]
Net income attributable to equity holders of the Bank |  | 446 |  | 369 | [5]
Total average assets |  | 133,000 |  | 131,000 | [5]
Total average liabilities |  | $ 127,000 |  | $ 116,000 | [5]
[1] | Interest income is reported net of interest expense as management relies primarily on net interest income as a performance measure.
[2] | Card revenues and Banking services fees are mainly earned in Canadian and International Banking. Mutual fund, Brokerage fees and Investment management and trust fees are primarily earned in Global Wealth Management. Underwriting and other advisory fees are predominantly earned in Global Banking and Markets.
[3] | Includes net income (on a taxable equivalent basis) from investments in associated corporations for Canadian Banking – $19; International Banking – $152; Global Banking and Markets – $1; and Other – $436.
[4] | Includes net income (on a taxable equivalent basis) from investments in associated corporations for Canadian Banking – $(9); International Banking – $130; and Other – $77.
[5] | Effective Q1 2025, changes were made to the methodology used to allocate certain income, expenses and balance sheet items between business segments. Prior period results for each segment have been reclassified to conform with the current period’s methodology.
[6] | Includes net income from investments in associated corporations for Canada – $(12), United States – $362, Mexico – $9, Peru – $4, Chile – $7, Caribbean and Central America – $132, and Other International – $106.
[7] | Includes net income from investments in associated corporations for Canada – $(68), Mexico – $11, Peru – $4, Chile – $6, Caribbean and Central America – $109, and Other International – $136.
[8] | Revenues are attributed to countries based on where services are performed or assets are recorded.

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