| Fact | Value | Period | Source |
|---|
| cash_and_equivalents | {"amount": 1673614000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2025-12-31 | esef |
| cash_and_equivalents | {"amount": 1033735000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2025-06-30 | esef |
| cash_and_equivalents | {"amount": 3361150000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2024-07-01 | esef |
| cash_and_equivalents | {"amount": 3361150000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2024-06-30 | esef |
| cash_and_equivalents | {"amount": 8578844000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2022-06-30 | esef |
| cash_and_equivalents | {"amount": 3273438000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2021-06-30 | esef |
| cash_and_equivalents | {"amount": 3219951000.0, "concept": "ifrs-full:CashAndCashEquivalents"} | 2020-06-30 | esef |
| cashflow_financing | {"amount": -580214000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2025-12-31 | esef |
| cashflow_financing | {"amount": -1281960000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2025-06-30 | esef |
| cashflow_financing | {"amount": -821049000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2022-06-30 | esef |
| cashflow_financing | {"amount": -3694000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2021-06-30 | esef |
| cashflow_investing | {"amount": -23838000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2025-12-31 | esef |
| cashflow_investing | {"amount": 157521000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2025-06-30 | esef |
| cashflow_investing | {"amount": 263543000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2022-06-30 | esef |
| cashflow_investing | {"amount": 152625000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2021-06-30 | esef |
| cashflow_operating | {"amount": 1243910000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2025-12-31 | esef |
| cashflow_operating | {"amount": -1202976000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2025-06-30 | esef |
| cashflow_operating | {"amount": 5862912000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2022-06-30 | esef |
| cashflow_operating | {"amount": -95444000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2021-06-30 | esef |
| controlled_by | {"lei": "J4CP7MHCXR8DAQMKIL78", "meaning": "oberste Konsolidierung (Konzernspitze)", "enti | | gleif |
| entity_legal_form | {"value": "P418", "elf_code": "P418"} | | gleif |
| headquarters_address | {"city": "MILAN", "region": "IT-25", "street": "PIAZZETTA ENRICO CUCCIA, 1", "country": "I | | gleif |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently | {"amount": 150134000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently | {"amount": -882745000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": -3297000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue | {"amount": -23566000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": -50467000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": -48950000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": 1258324000.0} | 2022-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading | {"amount": 75584000.0} | 2021-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost | {"amount": -255289000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost | {"amount": -1863862000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 281753000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | {"amount": 1614801000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInOtherFinancialAssets | {"amount": 217984000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDecreaseIncreaseInOtherFinancialAssets | {"amount": 368665000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently | {"amount": 69178000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently | {"amount": 308744000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -518941000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -906895000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -70086000.0} | 2022-06-30 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading | {"amount": -60043000.0} | 2021-06-30 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtAmortisedCost | {"amount": 2268102000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtAmortisedCost | {"amount": 738076000.0} | 2025-06-30 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInOtherFinancialLiabilities | {"amount": -632556000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForIncreaseDecreaseInOtherFinancialLiabilities | {"amount": 127312000.0} | 2025-06-30 | esef |
| ifrs:AdministrativeExpense | {"amount": 888505000.0} | 2025-12-31 | esef |
| ifrs:AdministrativeExpense | {"amount": 1639342000.0} | 2025-06-30 | esef |
| ifrs:AdministrativeExpense | {"amount": 1381467000.0} | 2022-06-30 | esef |
| ifrs:AdministrativeExpense | {"amount": 1304499000.0} | 2021-06-30 | esef |
| ifrs:Assets | {"amount": 106006555000.0} | 2025-12-31 | esef |
| ifrs:Assets | {"amount": 104197302000.0} | 2025-06-30 | esef |
| ifrs:Assets | {"amount": 99326693000.0} | 2024-07-01 | esef |
| ifrs:Assets | {"amount": 90568420000.0} | 2022-06-30 | esef |
| ifrs:Assets | {"amount": 82598700000.0} | 2021-06-30 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 1673614000.0} | 2025-12-31 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 1033735000.0} | 2025-06-30 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 3361150000.0} | 2024-07-01 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 3361150000.0} | 2024-06-30 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 8578844000.0} | 2022-06-30 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 3273438000.0} | 2021-06-30 | esef |
| ifrs:CashAndCashEquivalents | {"amount": 3219951000.0} | 2020-06-30 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2025-06-30 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2022-06-30 | esef |
| ifrs:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2021-06-30 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -580214000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -1281960000.0} | 2025-06-30 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -821049000.0} | 2022-06-30 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -3694000.0} | 2021-06-30 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -23838000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 157521000.0} | 2025-06-30 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 263543000.0} | 2022-06-30 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 152625000.0} | 2021-06-30 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 1243910000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -1202976000.0} | 2025-06-30 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 5862912000.0} | 2022-06-30 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -95444000.0} | 2021-06-30 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": -294741000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": -658046000.0} | 2025-06-30 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 536428000.0} | 2022-06-30 | esef |
| ifrs:CashFlowsFromUsedInOperations | {"amount": 335123000.0} | 2021-06-30 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2025-06-30 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2022-06-30 | esef |
| ifrs:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | {"amount": 0.0} | 2021-06-30 | esef |
| ifrs:ComprehensiveIncome | {"amount": 741351000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 1187884000.0} | 2025-06-30 | esef |
| ifrs:ComprehensiveIncome | {"amount": 411361000.0} | 2022-06-30 | esef |
| ifrs:ComprehensiveIncome | {"amount": 1365425000.0} | 2021-06-30 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 664000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 1045000.0} | 2025-06-30 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 3793000.0} | 2022-06-30 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 2310000.0} | 2021-06-30 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 740687000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 1186839000.0} | 2025-06-30 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 407568000.0} | 2022-06-30 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 1363115000.0} | 2021-06-30 | esef |
| ifrs:CurrentTaxAssets | {"amount": 199453000.0} | 2025-12-31 | esef |
| ifrs:CurrentTaxAssets | {"amount": 323696000.0} | 2025-06-30 | esef |
| ifrs:CurrentTaxAssets | {"amount": 350699000.0} | 2024-07-01 | esef |
| ifrs:CurrentTaxAssets | {"amount": 211290000.0} | 2022-06-30 | esef |
| ifrs:CurrentTaxAssets | {"amount": 208062000.0} | 2021-06-30 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 205807000.0} | 2025-12-31 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 345029000.0} | 2025-06-30 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 359882000.0} | 2024-07-01 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 257268000.0} | 2022-06-30 | esef |
| ifrs:CurrentTaxLiabilities | {"amount": 210817000.0} | 2021-06-30 | esef |
| ifrs:DebtInstrumentsIssuedAtAmortisedCost | {"amount": 27944059000.0} | 2025-12-31 | esef |
| ifrs:DebtInstrumentsIssuedAtAmortisedCost | {"amount": 28744201000.0} | 2025-06-30 | esef |
| ifrs:DebtInstrumentsIssuedAtAmortisedCost | {"amount": 25254900000.0} | 2024-07-01 | esef |
| ifrs:DebtSecurities | {"amount": 18240224000.0} | 2022-06-30 | esef |
| ifrs:DebtSecurities | {"amount": 18579307000.0} | 2021-06-30 | esef |
| ifrs:DeferredTaxAssets | {"amount": 278372000.0} | 2025-12-31 | esef |
| ifrs:DeferredTaxAssets | {"amount": 303371000.0} | 2025-06-30 | esef |
| ifrs:DeferredTaxAssets | {"amount": 404113000.0} | 2024-07-01 | esef |
| ifrs:DeferredTaxAssets | {"amount": 596967000.0} | 2022-06-30 | esef |
| ifrs:DeferredTaxAssets | {"amount": 584203000.0} | 2021-06-30 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 466388000.0} | 2025-12-31 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 429826000.0} | 2025-06-30 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 421565000.0} | 2024-07-01 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 402519000.0} | 2022-06-30 | esef |
| ifrs:DeferredTaxLiabilities | {"amount": 338787000.0} | 2021-06-30 | esef |
| ifrs:DepositsFromBanks | {"amount": 15751826000.0} | 2022-06-30 | esef |
| ifrs:DepositsFromBanks | {"amount": 12830919000.0} | 2021-06-30 | esef |
| ifrs:DepositsFromBanksAtAmortisedCost | {"amount": 14971657000.0} | 2025-12-31 | esef |
| ifrs:DepositsFromBanksAtAmortisedCost | {"amount": 12347364000.0} | 2025-06-30 | esef |
| ifrs:DepositsFromBanksAtAmortisedCost | {"amount": 10962115000.0} | 2024-07-01 | esef |
| ifrs:DepositsFromCustomers | {"amount": 32723575000.0} | 2022-06-30 | esef |
| ifrs:DepositsFromCustomers | {"amount": 27064789000.0} | 2021-06-30 | esef |
| ifrs:DepositsFromCustomersAtAmortisedCost | {"amount": 34768281000.0} | 2025-12-31 | esef |
| ifrs:DepositsFromCustomersAtAmortisedCost | {"amount": 34091725000.0} | 2025-06-30 | esef |
| ifrs:DepositsFromCustomersAtAmortisedCost | {"amount": 34104548000.0} | 2024-07-01 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 161471000.0} | 2025-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 329708000.0} | 2025-06-30 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 705549000.0} | 2024-07-01 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 872431000.0} | 2022-06-30 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 308370000.0} | 2021-06-30 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 635963000.0} | 2025-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 1037377000.0} | 2025-06-30 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 1431642000.0} | 2024-07-01 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 1361863000.0} | 2022-06-30 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 375413000.0} | 2021-06-30 | esef |
| ifrs:DividendsPaid | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 41857000.0} | 2025-06-30 | esef |
| ifrs:DividendsPaid | {"amount": 569164000.0} | 2022-06-30 | esef |
| ifrs:DividendsPaid | {"amount": 0.0} | 2021-06-30 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 537573000.0} | 2025-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 942784000.0} | 2025-06-30 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 579618000.0} | 2022-06-30 | esef |
| ifrs:DividendsPaidClassifiedAsFinancingActivities | {"amount": 3694000.0} | 2021-06-30 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 4564000.0} | 2025-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 302867000.0} | 2025-06-30 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 313833000.0} | 2022-06-30 | esef |
| ifrs:DividendsReceivedClassifiedAsInvestingActivities | {"amount": 206954000.0} | 2021-06-30 | esef |
| ifrs:DividendsReceivedClassifiedAsOperatingActivities | {"amount": 55298000.0} | 2025-12-31 | esef |
| ifrs:DividendsReceivedClassifiedAsOperatingActivities | {"amount": 151402000.0} | 2025-06-30 | esef |
| ifrs:DividendsReceivedClassifiedAsOperatingActivities | {"amount": 117945000.0} | 2022-06-30 | esef |
| ifrs:DividendsReceivedClassifiedAsOperatingActivities | {"amount": 97486000.0} | 2021-06-30 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 21000.0} | 2025-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2025-06-30 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2022-06-30 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2021-06-30 | esef |
| ifrs:EquityAndLiabilities | {"amount": 106006555000.0} | 2025-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 104197302000.0} | 2025-06-30 | esef |
| ifrs:EquityAndLiabilities | {"amount": 99326693000.0} | 2024-07-01 | esef |
| ifrs:EquityAndLiabilities | {"amount": 90568420000.0} | 2022-06-30 | esef |
| ifrs:EquityAndLiabilities | {"amount": 82598700000.0} | 2021-06-30 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 135488000.0} | 2025-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 220764000.0} | 2025-06-30 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 166719000.0} | 2022-06-30 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 134458000.0} | 2021-06-30 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 546149000.0} | 2025-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 1172369000.0} | 2025-06-30 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 834723000.0} | 2022-06-30 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 719736000.0} | 2021-06-30 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 410661000.0} | 2025-12-31 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 951605000.0} | 2025-06-30 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 668004000.0} | 2022-06-30 | esef |
| ifrs:FeeAndCommissionIncomeExpense | {"amount": 585278000.0} | 2021-06-30 | esef |
| ifrs:FinanceIncomeExpensesFromReinsuranceContractsHeldRecognisedInProfitOrLoss | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:FinanceIncomeExpensesFromReinsuranceContractsHeldRecognisedInProfitOrLoss | {"amount": 0.0} | 2025-06-30 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 71154524000.0} | 2025-12-31 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 70315458000.0} | 2025-06-30 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 64158936000.0} | 2024-07-01 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 60105275000.0} | 2022-06-30 | esef |
| ifrs:FinancialAssetsAtAmortisedCost | {"amount": 55295675000.0} | 2021-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 18154578000.0} | 2025-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 18241006000.0} | 2025-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 16787866000.0} | 2024-07-01 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 10681019000.0} | 2022-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLoss | {"amount": 12649596000.0} | 2021-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 15932463000.0} | 2025-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 15889997000.0} | 2025-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 15409451000.0} | 2024-07-01 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 9530935000.0} | 2022-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading | {"amount": 11273737000.0} | 2021-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 1506408000.0} | 2025-12-31 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 1659448000.0} | 2025-06-30 | esef |
| ifrs:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition | {"amount": 719215000.0} | 2024-07-01 | esef |