Fair Value of Financial Instruments - Summary of Fair Values of Financial Instruments of Bank Using Valuation Methods and Assumption (Detail) - CAD ($) $ in Millions |
Jul. 31, 2026 |
Apr. 30, 2026 |
Oct. 31, 2025 |
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|---|---|---|---|---|---|---|---|
| Assets: | |||||||
| Cash and deposits with financial institutions | [1] | $ 62,455 | $ 79,301 | $ 65,967 | |||
| Trading assets | 162,526 | 157,689 | 152,223 | ||||
| Securities purchased under resale agreements and securities borrowed | 273,638 | 253,177 | 203,008 | ||||
| Derivative financial instruments | 50,531 | 46,709 | 46,531 | ||||
| Customers' liability under acceptances | 161 | 155 | 177 | ||||
| Liabilities: | |||||||
| Deposits | [2] | 1,006,015 | 981,489 | 966,279 | |||
| Financial instruments designated at fair value through profit or loss | 52,864 | 48,629 | 47,165 | ||||
| Acceptances | 162 | 157 | 178 | ||||
| Obligations related to securities sold short | 39,971 | 38,064 | 38,104 | ||||
| Derivative financial instruments | 58,344 | 56,854 | 56,031 | ||||
| Obligations related to securities sold under repurchase agreements and securities lent | 226,261 | 238,663 | 189,144 | ||||
| Subordinated debentures | 6,919 | 5,766 | 7,692 | ||||
| Gross carrying amount [member] | |||||||
| Assets: | |||||||
| Cash and deposits with financial institutions | 62,455 | 79,301 | 65,967 | ||||
| Trading assets | 162,526 | 157,689 | 152,223 | ||||
| Securities purchased under resale agreements and securities borrowed | 273,638 | 253,177 | 203,008 | ||||
| Derivative financial instruments | 50,531 | 46,709 | 46,531 | ||||
| Investment securities – FVOCI and FVTPL | 130,461 | 127,818 | 126,226 | ||||
| Investment securities – amortized cost | 22,221 | 21,988 | 23,722 | ||||
| Loans | 770,555 | 757,434 | 771,045 | ||||
| Customers' liability under acceptances | 161 | 155 | 177 | ||||
| Other financial assets | 28,730 | 27,239 | 28,128 | ||||
| Liabilities: | |||||||
| Deposits | 1,006,015 | 981,489 | 966,279 | ||||
| Financial instruments designated at fair value through profit or loss | 52,864 | 48,629 | 47,165 | ||||
| Acceptances | 162 | 157 | 178 | ||||
| Obligations related to securities sold short | 39,971 | 38,064 | 38,104 | ||||
| Derivative financial instruments | 58,344 | 56,854 | 56,031 | ||||
| Obligations related to securities sold under repurchase agreements and securities lent | 226,261 | 238,663 | 189,144 | ||||
| Subordinated debentures | 6,919 | 5,766 | 7,692 | ||||
| Other financial liabilities | 57,045 | 52,913 | 56,529 | ||||
| At fair value [member] | |||||||
| Assets: | |||||||
| Cash and deposits with financial institutions | 62,455 | 79,301 | 65,967 | ||||
| Trading assets | 162,526 | 157,689 | 152,223 | ||||
| Securities purchased under resale agreements and securities borrowed | 273,638 | 253,177 | 203,008 | ||||
| Derivative financial instruments | 50,531 | 46,709 | 46,531 | ||||
| Investment securities – FVOCI and FVTPL | 130,461 | 127,818 | 126,226 | ||||
| Investment securities – amortized cost | 21,537 | 21,510 | 23,239 | ||||
| Loans | 769,595 | 754,267 | 769,900 | ||||
| Customers' liability under acceptances | 161 | 155 | 177 | ||||
| Other financial assets | 28,730 | 27,239 | 28,128 | ||||
| Liabilities: | |||||||
| Deposits | 1,003,369 | 979,387 | 965,925 | ||||
| Financial instruments designated at fair value through profit or loss | 52,864 | 48,629 | 47,165 | ||||
| Acceptances | 162 | 157 | 178 | ||||
| Obligations related to securities sold short | 39,971 | 38,064 | 38,104 | ||||
| Derivative financial instruments | 58,344 | 56,854 | 56,031 | ||||
| Obligations related to securities sold under repurchase agreements and securities lent | 226,261 | 238,663 | 189,144 | ||||
| Subordinated debentures | 6,923 | 5,801 | 7,749 | ||||
| Other financial liabilities | $ 56,883 | $ 53,031 | $ 56,500 | ||||
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