| Fact | Value | Period | Source |
|---|
| cash_and_equivalents | {"amount": 31549000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2024-10-31 | esef |
| cash_and_equivalents | {"amount": 35234000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2023-10-31 | esef |
| cash_and_equivalents | {"amount": 31870000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2022-10-31 | esef |
| cash_and_equivalents | {"amount": 33879000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2021-10-31 | esef |
| cashflow_financing | {"amount": -1097000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2024-10-31 | esef |
| cashflow_financing | {"amount": -2267000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2023-10-31 | esef |
| cashflow_financing | {"amount": -381000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2022-10-31 | esef |
| cashflow_investing | {"amount": -7336000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2024-10-31 | esef |
| cashflow_investing | {"amount": -80000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2023-10-31 | esef |
| cashflow_investing | {"amount": -1456000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2022-10-31 | esef |
| cashflow_operating | {"amount": 4652000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2024-10-31 | esef |
| cashflow_operating | {"amount": 5166000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2023-10-31 | esef |
| cashflow_operating | {"amount": -1922000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2022-10-31 | esef |
| entity_legal_form | {"value": "UG3Z", "elf_code": "UG3Z"} | | gleif |
| eps_basic | {"amount": 10.78, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2024-10-31 | esef |
| eps_basic | {"amount": 9.47, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2023-10-31 | esef |
| eps_basic | {"amount": 9.72, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2022-10-31 | esef |
| eps_diluted | {"amount": 10.68, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2024-10-31 | esef |
| eps_diluted | {"amount": 9.38, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2023-10-31 | esef |
| eps_diluted | {"amount": 9.61, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2022-10-31 | esef |
| headquarters_address | {"city": "MONTRÉAL", "region": "CA-QC", "street": "800, RUE SAINT-JACQUES", "country": "CA | | gleif |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 219000000.0} | 2024-10-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 420000000.0} | 2023-10-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 202000000.0} | 2022-10-31 | esef |
| ifrs:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets | {"amount": 569000000.0} | 2024-10-31 | esef |
| ifrs:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets | {"amount": 397000000.0} | 2023-10-31 | esef |
| ifrs:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets | {"amount": 145000000.0} | 2022-10-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed | {"amount": -5005000000.0} | 2024-10-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed | {"amount": 15226000000.0} | 2023-10-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed | {"amount": -18970000000.0} | 2022-10-31 | esef |
| ifrs:AdjustmentsForDeferredTaxExpense | {"amount": -138000000.0} | 2024-10-31 | esef |
| ifrs:AdjustmentsForDeferredTaxExpense | {"amount": -229000000.0} | 2023-10-31 | esef |
| ifrs:AdjustmentsForDeferredTaxExpense | {"amount": 110000000.0} | 2022-10-31 | esef |
| ifrs:AdjustmentsForFairValueGainsLosses | {"amount": -174000000.0} | 2024-10-31 | esef |
| ifrs:AdjustmentsForFairValueGainsLosses | {"amount": -91000000.0} | 2023-10-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers | {"amount": 45372000000.0} | 2024-10-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers | {"amount": 21779000000.0} | 2023-10-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers | {"amount": 25456000000.0} | 2022-10-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent | {"amount": 16180000000.0} | 2022-10-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent | {"amount": -170000000.0} | 2024-10-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent | {"amount": 4874000000.0} | 2023-10-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 8000000.0} | 2024-10-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 11000000.0} | 2023-10-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 28000000.0} | 2022-10-31 | esef |
| ifrs:AllowanceAccountForCreditLossesOfFinancialAssets | {"amount": 1341000000.0} | 2024-10-31 | esef |
| ifrs:AllowanceAccountForCreditLossesOfFinancialAssets | {"amount": 1184000000.0} | 2023-10-31 | esef |
| ifrs:AllowanceAccountForCreditLossesOfFinancialAssets | {"amount": 955000000.0} | 2022-10-31 | esef |
| ifrs:AmortisationIntangibleAssetsOtherThanGoodwill | {"amount": 279000000.0} | 2022-10-31 | esef |
| ifrs:AmortisationIntangibleAssetsOtherThanGoodwill | {"amount": 281000000.0} | 2024-10-31 | esef |
| ifrs:AmortisationIntangibleAssetsOtherThanGoodwill | {"amount": 313000000.0} | 2023-10-31 | esef |
| ifrs:Assets | {"amount": 462226000000.0} | 2024-10-31 | esef |
| ifrs:Assets | {"amount": 423578000000.0} | 2023-10-31 | esef |
| ifrs:Assets | {"amount": 403740000000.0} | 2022-10-31 | esef |
| ifrs:BankAcceptanceAssets | {"amount": 0.0} | 2024-10-31 | esef |
| ifrs:BankAcceptanceAssets | {"amount": 6627000000.0} | 2023-10-31 | esef |
| ifrs:BankAcceptanceAssets | {"amount": 6541000000.0} | 2022-10-31 | esef |
| ifrs:BankAcceptanceLiabilities | {"amount": 0.0} | 2024-10-31 | esef |
| ifrs:BankAcceptanceLiabilities | {"amount": 6627000000.0} | 2023-10-31 | esef |
| ifrs:BankAcceptanceLiabilities | {"amount": 6541000000.0} | 2022-10-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 10.78} | 2024-10-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 9.47} | 2023-10-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 9.72} | 2022-10-31 | esef |
| ifrs:BrokerageFeeIncome | {"amount": 194000000.0} | 2024-10-31 | esef |
| ifrs:BrokerageFeeIncome | {"amount": 174000000.0} | 2023-10-31 | esef |
| ifrs:BrokerageFeeIncome | {"amount": 204000000.0} | 2022-10-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 6500000000.0} | 2024-10-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 6500000000.0} | 2023-10-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 5300000000.0} | 2022-10-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 31549000000.0} | 2024-10-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 35234000000.0} | 2023-10-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 31870000000.0} | 2022-10-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 33879000000.0} | 2021-10-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -1097000000.0} | 2024-10-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -2267000000.0} | 2023-10-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -381000000.0} | 2022-10-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -7336000000.0} | 2024-10-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -80000000.0} | 2023-10-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -1456000000.0} | 2022-10-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 4652000000.0} | 2024-10-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 5166000000.0} | 2023-10-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -1922000000.0} | 2022-10-31 | esef |
| ifrs:CommunicationExpense | {"amount": 56000000.0} | 2024-10-31 | esef |
| ifrs:CommunicationExpense | {"amount": 58000000.0} | 2023-10-31 | esef |
| ifrs:CommunicationExpense | {"amount": 57000000.0} | 2022-10-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3391000000.0} | 2024-10-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3295000000.0} | 2023-10-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 4065000000.0} | 2022-10-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -1000000.0} | 2024-10-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -2000000.0} | 2023-10-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -1000000.0} | 2022-10-31 | esef |
| ifrs:CreditrelatedFeeAndCommissionIncome | {"amount": 460000000.0} | 2024-10-31 | esef |
| ifrs:CreditrelatedFeeAndCommissionIncome | {"amount": 574000000.0} | 2023-10-31 | esef |
| ifrs:CreditrelatedFeeAndCommissionIncome | {"amount": 490000000.0} | 2022-10-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 333545000000.0} | 2024-10-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 288173000000.0} | 2023-10-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 266394000000.0} | 2022-10-31 | esef |
| ifrs:DerivativeFinancialAssets | {"amount": 12309000000.0} | 2024-10-31 | esef |
| ifrs:DerivativeFinancialAssets | {"amount": 17516000000.0} | 2023-10-31 | esef |
| ifrs:DerivativeFinancialAssets | {"amount": 18547000000.0} | 2022-10-31 | esef |
| ifrs:DerivativeFinancialLiabilities | {"amount": 15760000000.0} | 2024-10-31 | esef |
| ifrs:DerivativeFinancialLiabilities | {"amount": 19888000000.0} | 2023-10-31 | esef |
| ifrs:DerivativeFinancialLiabilities | {"amount": 19632000000.0} | 2022-10-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 10.68} | 2024-10-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 9.38} | 2023-10-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 9.61} | 2022-10-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 1640000000.0} | 2024-10-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 1503000000.0} | 2023-10-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 1325000000.0} | 2022-10-31 | esef |
| ifrs:DividendsPaidOrdinarySharesPerShare | {"amount": 4.32} | 2024-10-31 | esef |
| ifrs:DividendsPaidOrdinarySharesPerShare | {"amount": 3.98} | 2023-10-31 | esef |
| ifrs:DividendsPaidOrdinarySharesPerShare | {"amount": 3.58} | 2022-10-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersPerShare | {"amount": 4.32} | 2024-10-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersPerShare | {"amount": 3.98} | 2023-10-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersPerShare | {"amount": 3.58} | 2022-10-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 96000000.0} | 2024-10-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 545000000.0} | 2023-10-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 1750000000.0} | 2022-10-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 3725000000.0} | 2024-10-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 3452000000.0} | 2023-10-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 3284000000.0} | 2022-10-31 | esef |
| ifrs:Equity | {"amount": 25550000000.0} | 2024-10-31 | esef |
| ifrs:Equity | {"amount": 23678000000.0} | 2023-10-31 | esef |
| ifrs:Equity | {"amount": 21746000000.0} | 2022-10-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 462226000000.0} | 2024-10-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 423578000000.0} | 2023-10-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 403740000000.0} | 2022-10-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 25550000000.0} | 2024-10-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 23676000000.0} | 2023-10-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 21744000000.0} | 2022-10-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 14608000000.0} | 2024-10-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 12582000000.0} | 2023-10-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 13516000000.0} | 2022-10-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome | {"amount": 14622000000.0} | 2024-10-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome | {"amount": 9242000000.0} | 2023-10-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome | {"amount": 8828000000.0} | 2022-10-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 115935000000.0} | 2024-10-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 99994000000.0} | 2023-10-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 87375000000.0} | 2022-10-31 | esef |
| ifrs:ForeignExchangeGain | {"amount": 225000000.0} | 2024-10-31 | esef |
| ifrs:ForeignExchangeGain | {"amount": 183000000.0} | 2023-10-31 | esef |
| ifrs:ForeignExchangeGain | {"amount": 211000000.0} | 2022-10-31 | esef |
| ifrs:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax | {"amount": -67000000.0} | 2024-10-31 | esef |
| ifrs:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax | {"amount": -52000000.0} | 2023-10-31 | esef |
| ifrs:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax | {"amount": -138000000.0} | 2022-10-31 | esef |
| ifrs:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | {"amount": 68000000.0} | 2024-10-31 | esef |
| ifrs:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | {"amount": -87000000.0} | 2023-10-31 | esef |
| ifrs:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | {"amount": -197000000.0} | 2022-10-31 | esef |
| ifrs:Goodwill | {"amount": 1522000000.0} | 2024-10-31 | esef |
| ifrs:Goodwill | {"amount": 1521000000.0} | 2023-10-31 | esef |
| ifrs:Goodwill | {"amount": 1519000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 1085000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 741000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 1118000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 961000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 637000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 894000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome | {"amount": -86000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome | {"amount": 44000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome | {"amount": 3000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome | {"amount": -135000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome | {"amount": -63000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome | {"amount": 216000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome | {"amount": -193000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome | {"amount": -71000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome | {"amount": 84000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": -87000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": -98000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": 161000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome | {"amount": -23000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome | {"amount": -17000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome | {"amount": -41000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome | {"amount": 16000000.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome | {"amount": 8000000.0} | 2023-10-31 | esef |
| ifrs:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome | {"amount": -10000000.0} | 2022-10-31 | esef |
| ifrs:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss | {"amount": 0.0} | 2024-10-31 | esef |
| ifrs:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss | {"amount": 0.0} | 2023-10-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": -3685000000.0} | 2024-10-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": 3364000000.0} | 2023-10-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": -2009000000.0} | 2022-10-31 | esef |
| ifrs:IntangibleAssetsOtherThanGoodwill | {"amount": 1233000000.0} | 2024-10-31 | esef |
| ifrs:IntangibleAssetsOtherThanGoodwill | {"amount": 1256000000.0} | 2023-10-31 | esef |
| ifrs:IntangibleAssetsOtherThanGoodwill | {"amount": 1360000000.0} | 2022-10-31 | esef |
| ifrs:InterestExpense | {"amount": 17032000000.0} | 2024-10-31 | esef |
| ifrs:InterestExpense | {"amount": 13191000000.0} | 2023-10-31 | esef |
| ifrs:InterestExpense | {"amount": 4274000000.0} | 2022-10-31 | esef |
| ifrs:InterestExpenseOnDebtInstrumentsIssued | {"amount": 62000000.0} | 2024-10-31 | esef |
| ifrs:InterestExpenseOnDebtInstrumentsIssued | {"amount": 47000000.0} | 2023-10-31 | esef |
| ifrs:InterestExpenseOnDebtInstrumentsIssued | {"amount": 28000000.0} | 2022-10-31 | esef |
| ifrs:InterestExpenseOnDepositsFromCustomers | {"amount": 13198000000.0} | 2024-10-31 | esef |
| ifrs:InterestExpenseOnDepositsFromCustomers | {"amount": 10015000000.0} | 2023-10-31 | esef |
| ifrs:InterestExpenseOnDepositsFromCustomers | {"amount": 3291000000.0} | 2022-10-31 | esef |
| ifrs:InterestExpenseOnOtherFinancialLiabilities | {"amount": 3020000000.0} | 2024-10-31 | esef |
| ifrs:InterestExpenseOnOtherFinancialLiabilities | {"amount": 2496000000.0} | 2023-10-31 | esef |
| ifrs:InterestExpenseOnOtherFinancialLiabilities | {"amount": 483000000.0} | 2022-10-31 | esef |
| ifrs:InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost | {"amount": 468000000.0} | 2024-10-31 | esef |
| ifrs:InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost | {"amount": 473000000.0} | 2023-10-31 | esef |
| ifrs:InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost | {"amount": 263000000.0} | 2022-10-31 | esef |
| ifrs:InterestIncomeOnDeposits | {"amount": 1547000000.0} | 2024-10-31 | esef |
| ifrs:InterestIncomeOnDeposits | {"amount": 1668000000.0} | 2023-10-31 | esef |
| ifrs:InterestIncomeOnDeposits | {"amount": 435000000.0} | 2022-10-31 | esef |