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IFRS 7 Disclosure - Summary of the Maturity of Assets and Liabilities as well as the Off-Balance Sheet Commitments (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024 | Oct. 31, 2023
--- | --- | --- | ---
Liabilities and equity |  |  |  |
Personal |  | $ 301,718 | $ 298,821 |
Financial instruments designated at fair value through profit or loss |  | 47,165 | 36,341 |
Acceptances |  | 178 | 149 |
Obligations related to securities sold short |  | 38,104 | 35,042 |
Derivative financial instruments |  | 56,031 | 51,260 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 189,144 | 190,449 |
Subordinated debentures |  | 7,692 | 7,833 |
Other liabilities |  | 66,862 | 63,028 |
Total equity |  | 88,587 | 84,076 | $ 78,571
Total liabilities and equity |  | 1,460,042 | 1,412,027 |
Liquidity risk [member] |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 966,279 | 943,849 |
Personal |  | 301,718 | 298,821 |
Non-personal |  | 664,561 | 645,028 |
Financial instruments designated at fair value through profit or loss |  | 47,165 | 36,341 |
Acceptances |  | 178 | 149 |
Obligations related to securities sold short |  | 38,104 | 35,042 |
Derivative financial instruments |  | 56,031 | 51,260 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 189,144 | 190,449 |
Subordinated debentures |  | 7,692 | 7,833 |
Other liabilities |  | 66,862 | 63,028 |
Total equity |  |  | 1,000 |
Total liabilities and equity |  | 1,460,042 | 1,412,027 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 280,342 | 269,471 |
Guarantees and letters of credit | [2] | 86,851 | 64,016 |
Liquidity risk [member] | Not later than one month [member] |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 75,799 | 88,575 |
Personal |  | 17,355 | 16,273 |
Non-personal |  | 58,444 | 72,302 |
Financial instruments designated at fair value through profit or loss |  | 1,098 | 510 |
Acceptances |  | 68 | 40 |
Obligations related to securities sold short |  | 172 | 272 |
Derivative financial instruments |  | 3,015 | 2,754 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 179,305 | 186,240 |
Other liabilities |  | 158 | 533 |
Total liabilities and equity |  | 259,615 | 278,924 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 2,347 | 1,538 |
Liquidity risk [member] | One to three months |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 79,361 | 77,322 |
Personal |  | 22,930 | 23,956 |
Non-personal |  | 56,431 | 53,366 |
Financial instruments designated at fair value through profit or loss |  | 932 | 1,045 |
Acceptances |  | 68 | 57 |
Obligations related to securities sold short |  | 1,750 | 1,988 |
Derivative financial instruments |  | 6,702 | 4,595 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 7,159 | 3,427 |
Subordinated debentures |  | 1,753 |  |
Other liabilities |  | 494 | 759 |
Total liabilities and equity |  | 98,219 | 89,193 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 9,299 | 9,568 |
Liquidity risk [member] | Three to six months |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 68,686 | 68,891 |
Personal |  | 19,913 | 24,000 |
Non-personal |  | 48,773 | 44,891 |
Financial instruments designated at fair value through profit or loss |  | 2,774 | 2,132 |
Acceptances |  | 25 | 36 |
Obligations related to securities sold short |  | 2,362 | 1,120 |
Derivative financial instruments |  | 4,077 | 2,429 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 1,894 | 93 |
Other liabilities |  | 2,167 | 1,285 |
Total liabilities and equity |  | 81,985 | 75,986 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 12,846 | 15,403 |
Liquidity risk [member] | Six to nine months |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 49,395 | 57,925 |
Personal |  | 17,931 | 22,746 |
Non-personal |  | 31,464 | 35,179 |
Financial instruments designated at fair value through profit or loss |  | 2,454 | 1,609 |
Acceptances |  | 11 | 10 |
Obligations related to securities sold short |  | 1,158 | 1,803 |
Derivative financial instruments |  | 3,506 | 2,301 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 546 | 437 |
Subordinated debentures |  |  | 251 |
Other liabilities |  | 1,204 | 1,267 |
Total liabilities and equity |  | 58,274 | 65,603 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 17,043 | 18,291 |
Liquidity risk [member] | Nine to twelve months |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 42,403 | 43,415 |
Personal |  | 16,136 | 19,827 |
Non-personal |  | 26,267 | 23,588 |
Financial instruments designated at fair value through profit or loss |  | 2,335 | 1,833 |
Acceptances |  | 6 | 6 |
Obligations related to securities sold short |  | 456 | 816 |
Derivative financial instruments |  | 2,311 | 1,857 |
Obligations related to securities sold under repurchase agreements and securities lent |  | 240 | 44 |
Other liabilities |  | 888 | 979 |
Total liabilities and equity |  | 48,639 | 48,950 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 14,364 | 12,075 |
Liquidity risk [member] | Later than one year and not later than two years [member] |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 64,578 | 64,530 |
Personal |  | 22,151 | 19,423 |
Non-personal |  | 42,427 | 45,107 |
Financial instruments designated at fair value through profit or loss |  | 5,798 | 5,330 |
Obligations related to securities sold short |  | 3,693 | 3,638 |
Derivative financial instruments |  | 7,770 | 7,647 |
Obligations related to securities sold under repurchase agreements and securities lent |  |  | 208 |
Subordinated debentures |  |  | 1,740 |
Other liabilities |  | 2,857 | 3,142 |
Total liabilities and equity |  | 84,696 | 86,235 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 53,723 | 58,806 |
Liquidity risk [member] | Later than two years and not later than five years [member] |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 75,189 | 76,309 |
Personal |  | 12,109 | 12,430 |
Non-personal |  | 63,080 | 63,879 |
Financial instruments designated at fair value through profit or loss |  | 12,103 | 8,887 |
Obligations related to securities sold short |  | 8,311 | 7,114 |
Derivative financial instruments |  | 11,011 | 11,705 |
Other liabilities |  | 7,042 | 6,860 |
Total liabilities and equity |  | 113,656 | 110,875 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 149,510 | 144,972 |
Liquidity risk [member] | Later than five years [member] |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 23,097 | 24,977 |
Personal |  | 155 | 138 |
Non-personal |  | 22,942 | 24,839 |
Financial instruments designated at fair value through profit or loss |  | 19,671 | 14,995 |
Obligations related to securities sold short |  | 11,091 | 9,413 |
Derivative financial instruments |  | 17,639 | 17,972 |
Subordinated debentures |  | 5,939 | 5,842 |
Other liabilities |  | 9,401 | 8,954 |
Total liabilities and equity |  | 86,838 | 82,153 |
Off-balance sheet commitments |  |  |  |
Credit commitments | [1] | 21,210 | 8,818 |
Liquidity risk [member] | No specific maturity [member] |  |  |  |
Liabilities and equity |  |  |  |
Deposits |  | 487,771 | 441,905 |
Personal |  | 173,038 | 160,028 |
Non-personal |  | 314,733 | 281,877 |
Obligations related to securities sold short |  | 9,111 | 8,878 |
Other liabilities |  | 42,651 | 39,249 |
Total equity |  | 88,587 | 84,076 |
Total liabilities and equity |  | 628,120 | 574,108 |
Off-balance sheet commitments |  |  |  |
Guarantees and letters of credit | [2] | $ 86,851 | $ 64,016 |
[1] | Includes the undrawn component of committed credit and liquidity facilities.
[2] | Includes outstanding balances of guarantees, standby letters of credit and commercial letters of credit which may expire undrawn.

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