| Fact | Value | Period | Source |
|---|
| cash_and_equivalents | {"amount": 112924000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2022-12-31 | esef |
| cash_and_equivalents | {"amount": 14756000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2021-12-31 | esef |
| cash_and_equivalents | {"amount": 13733000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2020-12-31 | esef |
| cash_and_equivalents | {"amount": 13222000000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2019-12-31 | esef |
| cashflow_financing | {"amount": -5593000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2021-12-31 | esef |
| cashflow_financing | {"amount": 2681000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2020-12-31 | esef |
| cashflow_financing | {"amount": -3518000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2022-12-31 | esef |
| cashflow_investing | {"amount": -2226000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2021-12-31 | esef |
| cashflow_investing | {"amount": -357000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2020-12-31 | esef |
| cashflow_investing | {"amount": -538000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2022-12-31 | esef |
| cashflow_operating | {"amount": 8805000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2021-12-31 | esef |
| cashflow_operating | {"amount": -1729000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2020-12-31 | esef |
| cashflow_operating | {"amount": 102276000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2022-12-31 | esef |
| entity_legal_form | {"value": "P418", "elf_code": "P418"} | | gleif |
| eps_basic | {"amount": 0.23, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2022-12-31 | esef |
| eps_basic | {"amount": 0.22, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2021-12-31 | esef |
| eps_basic | {"amount": 0.18, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2020-12-31 | esef |
| eps_diluted | {"amount": 0.18, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2020-12-31 | esef |
| eps_diluted | {"amount": 0.22, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2021-12-31 | esef |
| eps_diluted | {"amount": 0.23, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2022-12-31 | esef |
| headquarters_address | {"city": "TORINO", "region": "IT-TO", "street": "PIAZZA SAN CARLO, 156", "country": "IT", | | gleif |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": 6276000000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": -5206000000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": 1472000000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": 12769000000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -2581000000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -8904000000.0} | 2022-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 12012000000.0} | 2021-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 12160000000.0} | 2020-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 11579000000.0} | 2022-12-31 | esef |
| ifrs:Assets | {"amount": 975683000000.0} | 2022-12-31 | esef |
| ifrs:Assets | {"amount": 1069003000000.0} | 2021-12-31 | esef |
| ifrs:Assets | {"amount": 1002614000000.0} | 2020-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 0.18} | 2020-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 0.23} | 2022-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 0.22} | 2021-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 112924000000.0} | 2022-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 14756000000.0} | 2021-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 13733000000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 13222000000.0} | 2019-12-31 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 1294000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -5593000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 2681000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -3518000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -2226000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -357000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -538000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -1729000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 8805000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 102276000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 10854000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 7210000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 11169000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 446000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 389000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": -1072000000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3523000000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3271000000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 1896000000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -135000000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 46000000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -53000000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 3658000000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 3225000000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 1949000000.0} | 2022-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 3520000000.0} | 2022-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 3555000000.0} | 2021-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 2326000000.0} | 2020-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 297000000.0} | 2022-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 363000000.0} | 2021-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 284000000.0} | 2020-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 76079000000.0} | 2022-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 86558000000.0} | 2021-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 91834000000.0} | 2020-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 14753000000.0} | 2022-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 15253000000.0} | 2021-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 17177000000.0} | 2020-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 2009000000.0} | 2022-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 1922000000.0} | 2021-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 2745000000.0} | 2020-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 137482000000.0} | 2022-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 165258000000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 115947000000.0} | 2020-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 454025000000.0} | 2022-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 458239000000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 422365000000.0} | 2020-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 10062000000.0} | 2022-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 1732000000.0} | 2021-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 1134000000.0} | 2020-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 5346000000.0} | 2022-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 4868000000.0} | 2021-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 7088000000.0} | 2020-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 0.22} | 2021-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 0.18} | 2020-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 0.23} | 2022-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 549000000.0} | 2021-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 1333000000.0} | 2022-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 4041000000.0} | 2021-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 41000000.0} | 2020-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 2966000000.0} | 2022-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 48000000.0} | 2021-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 23000000.0} | 2020-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 79000000.0} | 2022-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -84000000.0} | 2020-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 37000000.0} | 2021-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -52000000.0} | 2022-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 975683000000.0} | 2022-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 1069003000000.0} | 2021-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 1002614000000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 2723000000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 2334000000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 2708000000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 10312000000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 12087000000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 11285000000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 7978000000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 8577000000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 9364000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 528078000000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 668866000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 612481000000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 47577000000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 52731000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 58246000000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 42522000000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 47181000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 53165000000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 1000000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 4000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 3000000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 5054000000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 5546000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": 5078000000.0} | 2020-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 49716000000.0} | 2022-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 67580000000.0} | 2021-12-31 | esef |
| ifrs:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 57858000000.0} | 2020-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 667586000000.0} | 2022-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 710055000000.0} | 2021-12-31 | esef |
| ifrs:FinancialLiabilitiesAtAmortisedCost | {"amount": 630146000000.0} | 2020-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 46512000000.0} | 2022-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 56306000000.0} | 2021-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 59033000000.0} | 2020-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 8795000000.0} | 2022-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 3674000000.0} | 2021-12-31 | esef |
| ifrs:FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 3032000000.0} | 2020-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 101000000.0} | 2020-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 289000000.0} | 2021-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfInvestments | {"amount": 16000000.0} | 2022-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 2843000000.0} | 2021-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 4364000000.0} | 2020-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 2624000000.0} | 2022-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 1138000000.0} | 2021-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 59000000.0} | 2020-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 1630000000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 986000000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 595000000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | {"amount": 98220000000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTreasuryShareTransactions | {"amount": -69000000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTreasuryShareTransactions | {"amount": -1783000000.0} | 2022-12-31 | esef |
| ifrs:InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss | {"amount": -13525000000.0} | 2021-12-31 | esef |
| ifrs:InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss | {"amount": -12802000000.0} | 2020-12-31 | esef |
| ifrs:InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss | {"amount": -9398000000.0} | 2022-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 9830000000.0} | 2022-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 9342000000.0} | 2021-12-31 | esef |
| ifrs:IntangibleAssetsAndGoodwill | {"amount": 8194000000.0} | 2020-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 10277000000.0} | 2020-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 10039000000.0} | 2021-12-31 | esef |
| ifrs:InterestRevenueCalculatedUsingEffectiveInterestMethod | {"amount": 12708000000.0} | 2022-12-31 | esef |
| ifrs:InvestmentAccountedForUsingEquityMethod | {"amount": 2013000000.0} | 2022-12-31 | esef |
| ifrs:InvestmentAccountedForUsingEquityMethod | {"amount": 1652000000.0} | 2021-12-31 | esef |
| ifrs:InvestmentAccountedForUsingEquityMethod | {"amount": 1996000000.0} | 2020-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 10369000000.0} | 2022-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 10084000000.0} | 2021-12-31 | esef |
| ifrs:IssuedCapital | {"amount": 10084000000.0} | 2020-12-31 | esef |
| ifrs:IssueOfEquity | {"amount": 2485000000.0} | 2022-12-31 | esef |
| ifrs:IssueOfEquity | {"amount": 63000000.0} | 2021-12-31 | esef |
| ifrs:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale | {"amount": 15000000.0} | 2022-12-31 | esef |
| ifrs:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale | {"amount": 30000000.0} | 2021-12-31 | esef |
| ifrs:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale | {"amount": 35676000000.0} | 2020-12-31 | esef |
| ifrs:LoansAndAdvancesToBanks | {"amount": 32884000000.0} | 2022-12-31 | esef |
| ifrs:LoansAndAdvancesToBanks | {"amount": 163937000000.0} | 2021-12-31 | esef |
| ifrs:LoansAndAdvancesToBanks | {"amount": 107316000000.0} | 2020-12-31 | esef |
| ifrs:LoansAndAdvancesToCustomers | {"amount": 495194000000.0} | 2022-12-31 | esef |
| ifrs:LoansAndAdvancesToCustomers | {"amount": 504929000000.0} | 2021-12-31 | esef |
| ifrs:LoansAndAdvancesToCustomers | {"amount": 505165000000.0} | 2020-12-31 | esef |
| ifrs:NetEarnedPremium | {"amount": 10557000000.0} | 2021-12-31 | esef |
| ifrs:NetEarnedPremium | {"amount": 10842000000.0} | 2020-12-31 | esef |
| ifrs:NetEarnedPremium | {"amount": 10358000000.0} | 2022-12-31 | esef |
| ifrs:NoncontrollingInterests | {"amount": 166000000.0} | 2022-12-31 | esef |
| ifrs:NoncontrollingInterests | {"amount": 291000000.0} | 2021-12-31 | esef |
| ifrs:NoncontrollingInterests | {"amount": 450000000.0} | 2020-12-31 | esef |
| ifrs:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale | {"amount": 638000000.0} | 2022-12-31 | esef |
| ifrs:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale | {"amount": 1422000000.0} | 2021-12-31 | esef |
| ifrs:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale | {"amount": 28702000000.0} | 2020-12-31 | esef |