| Fact | Value | Period | Source |
|---|
| cashflow_financing | {"amount": 2239600000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2025-12-31 | esef |
| cashflow_financing | {"amount": 6003000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2024-12-31 | esef |
| cashflow_financing | {"amount": 788600000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2023-12-31 | esef |
| cashflow_financing | {"amount": 3438500000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2022-12-31 | esef |
| cashflow_financing | {"amount": -893800000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2021-12-31 | esef |
| cashflow_financing | {"amount": 6009600000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2020-12-31 | esef |
| cashflow_investing | {"amount": 1008800000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2025-12-31 | esef |
| cashflow_investing | {"amount": 469900000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2024-12-31 | esef |
| cashflow_investing | {"amount": 91100000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2023-12-31 | esef |
| cashflow_investing | {"amount": -116400000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2022-12-31 | esef |
| cashflow_investing | {"amount": -251200000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2021-12-31 | esef |
| cashflow_investing | {"amount": 459400000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2020-12-31 | esef |
| cashflow_operating | {"amount": -920900000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2025-12-31 | esef |
| cashflow_operating | {"amount": -7284200000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2024-12-31 | esef |
| cashflow_operating | {"amount": -7490800000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2023-12-31 | esef |
| cashflow_operating | {"amount": -2558500000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2022-12-31 | esef |
| cashflow_operating | {"amount": 1893900000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2021-12-31 | esef |
| cashflow_operating | {"amount": 1165200000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2020-12-31 | esef |
| entity_legal_form | {"value": "K65D", "elf_code": "K65D"} | | gleif |
| eps_basic | {"amount": 0.75, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2025-12-31 | esef |
| eps_basic | {"amount": 1.32, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2024-12-31 | esef |
| eps_basic | {"amount": 1.64, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2023-12-31 | esef |
| eps_basic | {"amount": 2.22, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2022-12-31 | esef |
| eps_basic | {"amount": 2.7, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2021-12-31 | esef |
| eps_basic | {"amount": -0.21, "concept": "ifrs-full:BasicEarningsLossPerShare"} | 2020-12-31 | esef |
| eps_diluted | {"amount": 0.75, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2025-12-31 | esef |
| eps_diluted | {"amount": 1.32, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2024-12-31 | esef |
| eps_diluted | {"amount": 1.64, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2023-12-31 | esef |
| eps_diluted | {"amount": 2.22, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2022-12-31 | esef |
| eps_diluted | {"amount": 2.7, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2021-12-31 | esef |
| eps_diluted | {"amount": -0.21, "concept": "ifrs-full:DilutedEarningsLossPerShare"} | 2020-12-31 | esef |
| headquarters_address | {"city": "MAISONS-ALFORT", "region": null, "street": "27 AVENUE DU GENERAL LECLERC, 27-31" | | gleif |
| ifrs:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets | {"amount": -2249200000.0} | 2022-12-31 | esef |
| ifrs:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets | {"amount": 124000000.0} | 2021-12-31 | esef |
| ifrs:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets | {"amount": 586000000.0} | 2020-12-31 | esef |
| ifrs:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities | {"amount": -2027300000.0} | 2022-12-31 | esef |
| ifrs:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities | {"amount": 264500000.0} | 2021-12-31 | esef |
| ifrs:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities | {"amount": 727500000.0} | 2020-12-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 126100000.0} | 2025-12-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": -128100000.0} | 2024-12-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 2038100000.0} | 2023-12-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 453200000.0} | 2022-12-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": 2154300000.0} | 2021-12-31 | esef |
| ifrs:AccumulatedOtherComprehensiveIncome | {"amount": -779900000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForAmortisationExpense | {"amount": 88700000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForAmortisationExpense | {"amount": 82800000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForAmortisationExpense | {"amount": 67300000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 131600000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 119500000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 102400000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 88700000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": -5500000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": -3100000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": -9600000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": -3800000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 13100000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 0.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForProvisions | {"amount": 155600000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForProvisions | {"amount": 75300000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForProvisions | {"amount": 488400000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 92300000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 180900000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 304300000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 495400000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 114600000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": -600000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital | {"amount": -1172400000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital | {"amount": -325500000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital | {"amount": 105100000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital | {"amount": -1296200000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital | {"amount": 1052800000.0} | 2025-12-31 | esef |
| ifrs:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital | {"amount": 996600000.0} | 2020-12-31 | esef |
| ifrs:Assets | {"amount": 106327600000.0} | 2025-12-31 | esef |
| ifrs:Assets | {"amount": 102661000000.0} | 2024-12-31 | esef |
| ifrs:Assets | {"amount": 100367200000.0} | 2023-12-31 | esef |
| ifrs:Assets | {"amount": 101609200000.0} | 2022-12-31 | esef |
| ifrs:Assets | {"amount": 100848100000.0} | 2021-12-31 | esef |
| ifrs:Assets | {"amount": 94316000000.0} | 2020-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 2.7} | 2021-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 0.75} | 2025-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 1.32} | 2024-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 1.64} | 2023-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": 2.22} | 2022-12-31 | esef |
| ifrs:BasicEarningsLossPerShare | {"amount": -0.21} | 2020-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 4385200000.0} | 2025-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 2313500000.0} | 2024-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 2921800000.0} | 2023-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 9575700000.0} | 2022-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 8600400000.0} | 2021-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 7819200000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 5557000000.0} | 2025-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 3229500000.0} | 2024-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 4040800000.0} | 2023-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 10652000000.0} | 2022-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 9888400000.0} | 2021-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 9139500000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 1505300000.0} | 2019-12-31 | esef |
| ifrs:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate | {"amount": 425800000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 2239600000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 6003000000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 788600000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 3438500000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -893800000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 6009600000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 1008800000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 469900000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 91100000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -116400000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -251200000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 459400000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -7284200000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -921000000.0} | 2025-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -7490800000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -2558500000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 1893900000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 1165200000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 1446000000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": -1108000000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3196100000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": -489700000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 4673700000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": -111100000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -4600000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": -15900000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 4800000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 6200000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 300000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 0.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 1450600000.0} | 2025-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": -1092100000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 3191300000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": -495900000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 4673400000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": -111100000.0} | 2020-12-31 | esef |
| ifrs:CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory | {"amount": 0.0} | 2024-12-31 | esef |
| ifrs:CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory | {"amount": 0.0} | 2023-12-31 | esef |
| ifrs:CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory | {"amount": 0.0} | 2020-12-31 | esef |
| ifrs:DebtInstrumentsHeld | {"amount": 9616200000.0} | 2022-12-31 | esef |
| ifrs:DebtInstrumentsHeld | {"amount": 8053100000.0} | 2021-12-31 | esef |
| ifrs:DebtInstrumentsHeldAtAmortisedCost | {"amount": 12048300000.0} | 2025-12-31 | esef |
| ifrs:DebtInstrumentsHeldAtAmortisedCost | {"amount": 10890000000.0} | 2024-12-31 | esef |
| ifrs:DebtInstrumentsIssuedAtAmortisedCost | {"amount": 52397900000.0} | 2025-12-31 | esef |
| ifrs:DebtInstrumentsIssuedAtAmortisedCost | {"amount": 49441200000.0} | 2024-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 49441200000.0} | 2024-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 42210100000.0} | 2023-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 39749000000.0} | 2022-12-31 | esef |
| ifrs:DebtSecurities | {"amount": 36402500000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 9729900000.0} | 2024-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 13532900000.0} | 2023-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 20672200000.0} | 2022-12-31 | esef |
| ifrs:DepositsFromBanks | {"amount": 21414300000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromBanksAtAmortisedCost | {"amount": 10094200000.0} | 2025-12-31 | esef |
| ifrs:DepositsFromBanksAtAmortisedCost | {"amount": 9729900000.0} | 2024-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 2009300000.0} | 2024-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 1996400000.0} | 2023-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 2389600000.0} | 2022-12-31 | esef |
| ifrs:DepositsFromCustomers | {"amount": 2443200000.0} | 2021-12-31 | esef |
| ifrs:DepositsFromCustomersAtAmortisedCost | {"amount": 1920300000.0} | 2025-12-31 | esef |
| ifrs:DepositsFromCustomersAtAmortisedCost | {"amount": 2009300000.0} | 2024-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 88700000.0} | 2022-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 82800000.0} | 2021-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 67300000.0} | 2020-12-31 | esef |
| ifrs:DepreciationAndAmortisationExpense | {"amount": 131600000.0} | 2025-12-31 | esef |
| ifrs:DepreciationAndAmortisationExpense | {"amount": 119500000.0} | 2024-12-31 | esef |
| ifrs:DepreciationAndAmortisationExpense | {"amount": 102400000.0} | 2023-12-31 | esef |
| ifrs:DepreciationAndAmortisationExpense | {"amount": 88700000.0} | 2022-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 78300000.0} | 2025-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 121800000.0} | 2024-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 60900000.0} | 2023-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 58100000.0} | 2022-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 11000000.0} | 2021-12-31 | esef |
| ifrs:DerivativeFinancialAssetsHeldForHedging | {"amount": 5900000.0} | 2020-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 4600000.0} | 2025-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 8800000.0} | 2024-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 14500000.0} | 2023-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 10900000.0} | 2022-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 36500000.0} | 2021-12-31 | esef |
| ifrs:DerivativeFinancialLiabilitiesHeldForHedging | {"amount": 84200000.0} | 2020-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 0.75} | 2025-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 1.32} | 2024-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 1.64} | 2023-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 2.22} | 2022-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": 2.7} | 2021-12-31 | esef |
| ifrs:DilutedEarningsLossPerShare | {"amount": -0.21} | 2020-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 398200000.0} | 2024-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 348600000.0} | 2025-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 533000000.0} | 2023-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 566500000.0} | 2022-12-31 | esef |
| ifrs:DividendsPaid | {"amount": 429900000.0} | 2021-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2025-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2024-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2023-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2022-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": 0.0} | 2020-12-31 | esef |
| ifrs:Equity | {"amount": 29972800000.0} | 2025-12-31 | esef |
| ifrs:Equity | {"amount": 28868900000.0} | 2024-12-31 | esef |