Fair Value of Financial Instruments - Summary of Fair Values of Financial Instruments of Bank Using Valuation Methods and Assumption (Detail) - CAD ($) $ in Millions |
Apr. 30, 2026 |
Jan. 31, 2026 |
Oct. 31, 2025 |
||||
|---|---|---|---|---|---|---|---|
| Assets: | |||||||
| Cash and deposits with financial institutions | [1] | $ 79,301 | $ 73,838 | $ 65,967 | |||
| Trading assets | 157,689 | 161,043 | 152,223 | ||||
| Securities purchased under resale agreements and securities borrowed | 253,177 | 215,379 | 203,008 | ||||
| Derivative financial instruments | 46,709 | 47,788 | 46,531 | ||||
| Customers' liability under acceptances | 155 | 173 | 177 | ||||
| Liabilities: | |||||||
| Deposits | [2] | 981,489 | 971,682 | 966,279 | |||
| Financial instruments designated at fair value through profit or loss | 48,629 | 47,740 | 47,165 | ||||
| Acceptances | 157 | 174 | 178 | ||||
| Obligations related to securities sold short | 38,064 | 33,147 | 38,104 | ||||
| Derivative financial instruments | 56,854 | 58,165 | 56,031 | ||||
| Obligations related to securities sold under repurchase agreements and securities lent | 238,663 | 204,760 | 189,144 | ||||
| Subordinated debentures | 5,766 | 5,807 | 7,692 | ||||
| Gross carrying amount [member] | |||||||
| Assets: | |||||||
| Cash and deposits with financial institutions | 79,301 | 73,838 | 65,967 | ||||
| Trading assets | 157,689 | 161,043 | 152,223 | ||||
| Securities purchased under resale agreements and securities borrowed | 253,177 | 215,379 | 203,008 | ||||
| Derivative financial instruments | 46,709 | 47,788 | 46,531 | ||||
| Investment securities – FVOCI and FVTPL | 127,818 | 119,947 | 126,226 | ||||
| Investment securities – amortized cost | 21,988 | 22,452 | 23,722 | ||||
| Loans | 757,434 | 755,475 | 771,045 | ||||
| Customers' liability under acceptances | 155 | 173 | 177 | ||||
| Other financial assets | 27,239 | 28,419 | 28,128 | ||||
| Liabilities: | |||||||
| Deposits | 981,489 | 971,682 | 966,279 | ||||
| Financial instruments designated at fair value through profit or loss | 48,629 | 47,740 | 47,165 | ||||
| Acceptances | 157 | 174 | 178 | ||||
| Obligations related to securities sold short | 38,064 | 33,147 | 38,104 | ||||
| Derivative financial instruments | 56,854 | 58,165 | 56,031 | ||||
| Obligations related to securities sold under repurchase agreements and securities lent | 238,663 | 204,760 | 189,144 | ||||
| Subordinated debentures | 5,766 | 5,807 | 7,692 | ||||
| Other financial liabilities | 52,913 | 55,490 | 56,529 | ||||
| At fair value [member] | |||||||
| Assets: | |||||||
| Cash and deposits with financial institutions | 79,301 | 73,838 | 65,967 | ||||
| Trading assets | 157,689 | 161,043 | 152,223 | ||||
| Securities purchased under resale agreements and securities borrowed | 253,177 | 215,379 | 203,008 | ||||
| Derivative financial instruments | 46,709 | 47,788 | 46,531 | ||||
| Investment securities – FVOCI and FVTPL | 127,818 | 119,947 | 126,226 | ||||
| Investment securities – amortized cost | 21,510 | 22,069 | 23,239 | ||||
| Loans | 754,267 | 754,887 | 769,900 | ||||
| Customers' liability under acceptances | 155 | 173 | 177 | ||||
| Other financial assets | 27,239 | 28,419 | 28,128 | ||||
| Liabilities: | |||||||
| Deposits | 979,387 | 971,043 | 965,925 | ||||
| Financial instruments designated at fair value through profit or loss | 48,629 | 47,740 | 47,165 | ||||
| Acceptances | 157 | 174 | 178 | ||||
| Obligations related to securities sold short | 38,064 | 33,147 | 38,104 | ||||
| Derivative financial instruments | 56,854 | 58,165 | 56,031 | ||||
| Obligations related to securities sold under repurchase agreements and securities lent | 238,663 | 204,760 | 189,144 | ||||
| Subordinated debentures | 5,801 | 5,882 | 7,749 | ||||
| Other financial liabilities | $ 53,031 | $ 55,508 | $ 56,500 | ||||
| |||||||