| Oct 31, 2018 | Oct 31, 2019 | Oct 31, 2020 | Oct 31, 2021 | Oct 31, 2022 | Oct 31, 2023 | Oct 31, 2024 |
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| Profit (loss) | 11,334 | 11,686 | 11,895 | 14,298 | 17,429 | 10,782 | 8,842 |
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| Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss | 2,480 | 3,029 | 7,242 | -224 | 1,067 | 2,933 | 4,253 |
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| Adjustments for depreciation expense | 576 | 605 | 1,324 | 1,360 | 1,167 | 1,239 | 1,325 |
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| Adjustments For Amortization Expense Of Other Intangibles | 815 | 800 | 817 | 706 | 599 | 672 | 702 |
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| AdjustmentForNetRealizedGainsLossesOnSecurities | 111 | 78 | 40 | 14 | 60 | -48 | -358 |
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| Schwab | - | - | - | - | 991 | 864 | - |
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| Adjustments for undistributed profits of investments accounted for using equity method | - | - | - | - | - | - | 703 |
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| Schwab | - | - | - | - | 997 | - | - |
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| Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates | - | - | - | - | - | - | 1,022 |
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| Adjustments for deferred tax expense | 385 | -33 | -1,065 | 258 | 502 | -1,256 | -1,061 |
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| AdjustmentsForIncreaseDecreaseInAccruedInterestReceivableAndPayable | 104 | 26 | 108 | 288 | 412 | -812 | -1,133 |
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| Adjustments for increase (decrease) in repurchase agreements and cash collateral on securities lent | 4,798 | 32,467 | 63,020 | -44,779 | -16,073 | 36,832 | 35,046 |
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| Adjustments for decrease (increase) in reverse repurchase agreements and cash collateral on securities borrowed | 7,050 | -38,556 | -3,227 | 1,878 | 7,117 | -41,873 | -3,884 |
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| Securities sold short | 3,996 | -9,822 | 5,343 | 7,030 | 3,121 | -2,722 | -5,146 |
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| Trading loans and securities | -24,065 | -18,103 | -2,318 | 1,177 | 3,864 | -5,332 | -23,680 |
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| AdjustmentsForDecreaseIncreaseInLoansNetOfSecuritizationsAndSales | 45,620 | 41,693 | 39,641 | 3,660 | 109,463 | 67,766 | 57,908 |
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| AdjustmentsForIncreaseDecreaseInDeposits | 53,379 | -52,281 | 240,648 | -6,494 | 105,759 | -25,487 | 69,922 |
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| AdjustmentsForIncreaseDecreaseInNetDerivativeFinancialInstruments | -3,745 | 9,883 | -2,196 | 3,734 | -15,435 | -2,341 | 6,049 |
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| AdjustmentsForIncreaseDecreaseInNonTradingFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss | 5,257 | -2,397 | -2,045 | -842 | -1,556 | 3,897 | 1,471 |
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| Financial assets and liabilities designated at fair value through profit or loss | -468 | 104,693 | -46,165 | 54,498 | 48,323 | 28,565 | 15,185 |
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| AdjustmentsForIncreaseDecreaseInSecuritizationLiabilities | -1,532 | -157 | 2,342 | -719 | -1,083 | -552 | 5,552 |
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| Current taxes | -780 | -771 | 280 | 239 | -4,100 | 1,228 | 658 |
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| AdjustmentsForIncreaseDecreaseInBrokersDealersAndClientsAmountsReceivableAndPayable | 1,435 | -1,726 | 1,979 | 4,592 | -8,799 | 5,128 | -4,027 |
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| Other Adjustments Including Unrealised Foreign Exchange Losses Gains | - | - | - | 27,348 | -8,628 | 1,011 | -6,182 |
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| Cash flows from (used in) operating activities | 5,693 | 271 | 231,786 | 50,129 | 38,949 | -65,302 | 54,937 |
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| Proceeds From Borrowings Classified As Financing Activities | - | - | - | - | - | - | 3,324 |
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| Redemption or repurchase of subordinated notes and debentures | - | - | -2,530 | -7 | 6 | -1,716 | -1,544 |
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| Proceeds from issue of ordinary shares | 128 | 105 | 68 | 145 | 108 | 74 | 100 |
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| PaymentForCommonSharesRepurchasedForCancellation | 1,501 | 2,235 | 847 | - | 2,195 | 4,285 | 3,997 |
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| Proceeds From Issue Of Preferred Shares And Other Equity Instruments | - | - | - | - | - | - | 1,328 |
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| Payment For Redemption Of Preferred Shares And Other Equity Instruments | - | - | - | - | - | 400 | 1,300 |
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| Proceeds From Sale Of Treasury Shares And Other Equity Instruments | - | - | - | - | - | 8,497 | 11,948 |
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| Payment For Purchase Of Treasury Shares And Other Equity Instruments | - | - | - | - | - | 8,549 | 11,834 |
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| Dividends paid, classified as financing activities | 4,634 | 5,157 | 5,043 | 5,555 | 6,665 | 5,825 | 7,160 |
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| Repayment Of Lease Liabilities | - | - | - | - | - | 643 | 678 |
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| Cash flows from (used in) financing activities | -6,527 | -5,652 | -6,129 | -5,036 | -4,819 | -12,847 | -9,813 |
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| Cash flows from (used in) decrease (increase) in short-term deposits and investments | 20,465 | 5,137 | -138,566 | -729 | 30,455 | 41,446 | -71,153 |
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| PurchaseOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncome | 20,269 | 24,898 | 50,569 | 21,056 | 31,135 | 24,336 | 42,542 |
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| Proceeds from maturities | 30,101 | 37,835 | 49,684 | 33,541 | 33,158 | 17,893 | 18,825 |
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| Proceeds from sales | 2,731 | 10,158 | 11,005 | 5,363 | 6,723 | 5,838 | 4,130 |
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| PurchasesOfDebtSecuritiesAtAmortizedCost | 51,663 | 51,202 | 146,703 | 153,896 | 149,560 | 26,987 | 11,306 |
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| ProceedsFromMaturityOfDebtSecuritiesAtAmortizedCost | 20,101 | 28,392 | 51,400 | 92,131 | 68,719 | 52,819 | 49,606 |
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| ProceedsFromSaleOfDebtSecuritiesAtAmortizedCost | 670 | 1,418 | 1,391 | 2,365 | 8,720 | 12,021 | 5,772 |
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| NetPurchasesOfLandBuildingsEquipmentAndOtherDepreciableAssets | 587 | 794 | 1,757 | 1,129 | 1,454 | 1,844 | 2,177 |
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| CashFlowsFromDivestituresAndAcquisitionsOfSubsidiariesOrEquityAccountedAssociates | - | - | - | 1,858 | -2,479 | 624 | -3,423 |
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| Cash flows from (used in) investing activities | 1,549 | 5,506 | -224,115 | -45,268 | -31,895 | 76,226 | -45,422 |
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| Effect of exchange rate changes on cash and cash equivalents | 49 | 3 | 40 | -339 | 390 | 88 | 14 |
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| Increase (decrease) in cash and cash equivalents | 764 | 128 | 1,582 | -514 | 2,625 | -1,835 | -284 |
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| Income taxes paid (refund), classified as operating activities | 3,535 | 3,589 | 2,285 | 4,071 | 4,404 | 3,036 | 3,812 |
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| Interest paid, classified as operating activities | 13,888 | 17,958 | 10,287 | 5,878 | 12,523 | 48,179 | 61,779 |
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| Interest received, classified as operating activities | 34,789 | 40,315 | 34,076 | 28,127 | 37,642 | 76,646 | 91,013 |
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| Dividends received, classified as operating activities | 1,202 | 1,584 | 1,675 | 1,614 | 1,792 | 2,247 | 2,694 |
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