| Fact | Value | Period | Source |
|---|
| cashflow_financing | {"amount": 4595000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2024-12-31 | esef |
| cashflow_financing | {"amount": 3506000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2023-12-31 | esef |
| cashflow_financing | {"amount": -247000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2022-12-31 | esef |
| cashflow_financing | {"amount": -1363000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2021-12-31 | esef |
| cashflow_financing | {"amount": 918000000.0, "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities"} | 2020-12-31 | esef |
| cashflow_investing | {"amount": -200000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2024-12-31 | esef |
| cashflow_investing | {"amount": -28000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2023-12-31 | esef |
| cashflow_investing | {"amount": 1145000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2022-12-31 | esef |
| cashflow_investing | {"amount": -31000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2021-12-31 | esef |
| cashflow_investing | {"amount": -349000000.0, "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities"} | 2020-12-31 | esef |
| cashflow_operating | {"amount": -16289000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2024-12-31 | esef |
| cashflow_operating | {"amount": -5258000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2023-12-31 | esef |
| cashflow_operating | {"amount": -22252000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2022-12-31 | esef |
| cashflow_operating | {"amount": 14389000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2021-12-31 | esef |
| cashflow_operating | {"amount": 46259000000.0, "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities"} | 2020-12-31 | esef |
| controlled_by | {"lei": "R0MUWSFPU8MPRO8K5P83", "meaning": "oberste Konsolidierung (Konzernspitze)", "enti | | gleif |
| entity_legal_form | {"value": "R85P", "elf_code": "R85P"} | | gleif |
| headquarters_address | {"city": "Brussel", "region": "BE-BRU", "street": "Warandeberg 3", "country": "BE", "forma | | gleif |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 5150000000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 4265000000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 4230000000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 4484000000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForDepreciationAndAmortisationExpense | {"amount": 4139000000.0} | 2020-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 465000000.0} | 2024-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 311000000.0} | 2023-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 292000000.0} | 2022-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 322000000.0} | 2021-12-31 | esef |
| ifrs:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod | {"amount": 322000000.0} | 2020-12-31 | esef |
| ifrs:Assets | {"amount": 379846000000.0} | 2024-12-31 | esef |
| ifrs:Assets | {"amount": 373880000000.0} | 2023-12-31 | esef |
| ifrs:Assets | {"amount": 350392000000.0} | 2022-12-31 | esef |
| ifrs:Assets | {"amount": 341648000000.0} | 2021-12-31 | esef |
| ifrs:Assets | {"amount": 335135000000.0} | 2020-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 26538000000.0} | 2024-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 38467000000.0} | 2023-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 39009000000.0} | 2022-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 61263000000.0} | 2021-12-31 | esef |
| ifrs:CashAndBankBalancesAtCentralBanks | {"amount": 50074000000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 25818000000.0} | 2024-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 38037000000.0} | 2023-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 40802000000.0} | 2022-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 62823000000.0} | 2021-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 51534000000.0} | 2020-12-31 | esef |
| ifrs:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition | {"amount": 5574000000.0} | 2019-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 4595000000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 3506000000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -247000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": -1363000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInFinancingActivities | {"amount": 918000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -28000000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -200000000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": 1145000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -31000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInInvestingActivities | {"amount": -349000000.0} | 2020-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -16289000000.0} | 2024-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -5258000000.0} | 2023-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": -22252000000.0} | 2022-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 14389000000.0} | 2021-12-31 | esef |
| ifrs:CashFlowsFromUsedInOperatingActivities | {"amount": 46259000000.0} | 2020-12-31 | esef |
| ifrs:ChangesInGoodwill | {"amount": 0.0} | 2023-12-31 | esef |
| ifrs:ChangesInGoodwill | {"amount": -245000000.0} | 2022-12-31 | esef |
| ifrs:ChangesInGoodwill | {"amount": 0.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3759000000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 3645000000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 2592000000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 2571000000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncome | {"amount": 1832000000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 576000000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 507000000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 581000000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 248000000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToNoncontrollingInterests | {"amount": 267000000.0} | 2020-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 3183000000.0} | 2024-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 3138000000.0} | 2023-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 2011000000.0} | 2022-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 2323000000.0} | 2021-12-31 | esef |
| ifrs:ComprehensiveIncomeAttributableToOwnersOfParent | {"amount": 1565000000.0} | 2020-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 404000000.0} | 2024-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 375000000.0} | 2023-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 397000000.0} | 2022-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 361000000.0} | 2021-12-31 | esef |
| ifrs:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss | {"amount": 381000000.0} | 2020-12-31 | esef |
| ifrs:DividendsPaid | {"amount": -84000000.0} | 2020-12-31 | esef |
| ifrs:DividendsPaid | {"amount": -1241000000.0} | 2021-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsOperatingActivities | {"amount": 1241000000.0} | 2021-12-31 | esef |
| ifrs:DividendsPaidClassifiedAsOperatingActivities | {"amount": 2814000000.0} | 2022-12-31 | esef |
| ifrs:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners | {"amount": 2831600000.0} | 2023-12-31 | esef |
| ifrs:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners | {"amount": 2995500000.0} | 2022-12-31 | esef |
| ifrs:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare | {"amount": 5.01} | 2023-12-31 | esef |
| ifrs:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare | {"amount": 5.3} | 2022-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersOfParent | {"amount": 3309000000.0} | 2023-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersOfParent | {"amount": 3170000000.0} | 2024-12-31 | esef |
| ifrs:DividendsRecognisedAsDistributionsToOwnersOfParent | {"amount": 2814000000.0} | 2022-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -325000000.0} | 2024-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -985000000.0} | 2023-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -667000000.0} | 2022-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -1706000000.0} | 2021-12-31 | esef |
| ifrs:EffectOfExchangeRateChangesOnCashAndCashEquivalents | {"amount": -868000000.0} | 2020-12-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 2591000000.0} | 2022-12-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 2402000000.0} | 2021-12-31 | esef |
| ifrs:EmployeeBenefitsExpense | {"amount": 2410000000.0} | 2020-12-31 | esef |
| ifrs:Equity | {"amount": 34807000000.0} | 2024-12-31 | esef |
| ifrs:Equity | {"amount": 31179000000.0} | 2023-12-31 | esef |
| ifrs:Equity | {"amount": 31051000000.0} | 2022-12-31 | esef |
| ifrs:Equity | {"amount": 31197000000.0} | 2021-12-31 | esef |
| ifrs:Equity | {"amount": 31367000000.0} | 2021-12-30 | esef |
| ifrs:Equity | {"amount": 29838000000.0} | 2020-12-31 | esef |
| ifrs:Equity | {"amount": 28155000000.0} | 2019-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 379846000000.0} | 2024-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 373880000000.0} | 2023-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 350392000000.0} | 2022-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 341648000000.0} | 2021-12-31 | esef |
| ifrs:EquityAndLiabilities | {"amount": 335135000000.0} | 2020-12-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 28757000000.0} | 2024-12-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 25413000000.0} | 2023-12-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 25386000000.0} | 2022-12-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 25892000000.0} | 2021-12-31 | esef |
| ifrs:EquityAttributableToOwnersOfParent | {"amount": 24513000000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 1167000000.0} | 2024-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 1002000000.0} | 2023-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 865000000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 804000000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionExpense | {"amount": 724000000.0} | 2020-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 2738000000.0} | 2024-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 2441000000.0} | 2023-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 2275000000.0} | 2022-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 2199000000.0} | 2021-12-31 | esef |
| ifrs:FeeAndCommissionIncome | {"amount": 1998000000.0} | 2020-12-31 | esef |
| ifrs:GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost | {"amount": -4000000.0} | 2024-12-31 | esef |
| ifrs:GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost | {"amount": 63000000.0} | 2023-12-31 | esef |
| ifrs:GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost | {"amount": -2000000.0} | 2022-12-31 | esef |
| ifrs:GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost | {"amount": 2000000.0} | 2021-12-31 | esef |
| ifrs:GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost | {"amount": -5000000.0} | 2020-12-31 | esef |
| ifrs:GainsLossesOnCashFlowHedgesBeforeTax | {"amount": 46000000.0} | 2024-12-31 | esef |
| ifrs:GainsLossesOnCashFlowHedgesBeforeTax | {"amount": 4000000.0} | 2023-12-31 | esef |
| ifrs:GainsLossesOnCashFlowHedgesBeforeTax | {"amount": -123000000.0} | 2022-12-31 | esef |
| ifrs:GainsLossesOnCashFlowHedgesBeforeTax | {"amount": 21000000.0} | 2021-12-31 | esef |
| ifrs:GainsLossesOnCashFlowHedgesBeforeTax | {"amount": 144000000.0} | 2020-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfNoncurrentAssets | {"amount": 56000000.0} | 2022-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfNoncurrentAssets | {"amount": 15000000.0} | 2021-12-31 | esef |
| ifrs:GainsLossesOnDisposalsOfNoncurrentAssets | {"amount": -114000000.0} | 2020-12-31 | esef |
| ifrs:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax | {"amount": 40000000.0} | 2022-12-31 | esef |
| ifrs:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax | {"amount": 37000000.0} | 2021-12-31 | esef |
| ifrs:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax | {"amount": 11000000.0} | 2020-12-31 | esef |
| ifrs:GeneralAndAdministrativeExpense | {"amount": 5236000000.0} | 2024-12-31 | esef |
| ifrs:GeneralAndAdministrativeExpense | {"amount": 5121000000.0} | 2023-12-31 | esef |
| ifrs:GeneralAndAdministrativeExpense | {"amount": 2084000000.0} | 2022-12-31 | esef |
| ifrs:GeneralAndAdministrativeExpense | {"amount": 1814000000.0} | 2021-12-31 | esef |
| ifrs:GeneralAndAdministrativeExpense | {"amount": 1751000000.0} | 2020-12-31 | esef |
| ifrs:Goodwill | {"amount": 880000000.0} | 2024-12-31 | esef |
| ifrs:Goodwill | {"amount": 872000000.0} | 2023-12-31 | esef |
| ifrs:Goodwill | {"amount": 848000000.0} | 2022-12-31 | esef |
| ifrs:Goodwill | {"amount": 767000000.0} | 2021-12-31 | esef |
| ifrs:Goodwill | {"amount": 722000000.0} | 2020-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 390000000.0} | 2024-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 280000000.0} | 2023-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 328000000.0} | 2022-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 359000000.0} | 2021-12-31 | esef |
| ifrs:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9 | {"amount": 676000000.0} | 2020-12-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 702000000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 854000000.0} | 2023-12-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 670000000.0} | 2022-12-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 537000000.0} | 2021-12-31 | esef |
| ifrs:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | {"amount": 349000000.0} | 2020-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 1160000000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 1482000000.0} | 2023-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 1210000000.0} | 2022-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 752000000.0} | 2021-12-31 | esef |
| ifrs:IncomeTaxExpenseContinuingOperations | {"amount": 589000000.0} | 2020-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss | {"amount": -51000000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss | {"amount": -14000000.0} | 2023-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss | {"amount": -71000000.0} | 2022-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss | {"amount": 5000000.0} | 2021-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss | {"amount": 42000000.0} | 2020-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": 20000000.0} | 2024-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": -19000000.0} | 2023-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": -59000000.0} | 2022-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": -5000000.0} | 2021-12-31 | esef |
| ifrs:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss | {"amount": 1000000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": -12219000000.0} | 2024-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": -2765000000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": -22021000000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": 11289000000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": -22021000000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": 11289000000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseInCashAndCashEquivalents | {"amount": 45960000000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": 23000000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl | {"amount": -16000000.0} | 2020-12-31 | esef |
| ifrs:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquityAttributableToOwnersOfParent | {"amount": 23000000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseThroughSharebasedPaymentTransactions | {"amount": 3036000000.0} | 2024-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTransfersAndOtherChangesEquity | {"amount": -148000000.0} | 2023-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTransfersAndOtherChangesEquity | {"amount": 3000000.0} | 2024-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTransfersAndOtherChangesEquity | {"amount": 29000000.0} | 2021-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTransfersAndOtherChangesEquity | {"amount": -94000000.0} | 2022-12-31 | esef |
| ifrs:IncreaseDecreaseThroughTransfersAndOtherChangesEquity | {"amount": -49000000.0} | 2020-12-31 | esef |
| ifrs:InsuranceContractsIssuedThatAreLiabilities | {"amount": 279000000.0} | 2024-12-31 | esef |
| ifrs:InsuranceContractsIssuedThatAreLiabilities | {"amount": 246000000.0} | 2023-12-31 | esef |
| ifrs:InsuranceContractsIssuedThatAreLiabilities | {"amount": 178000000.0} | 2022-12-31 | esef |
| ifrs:InsuranceContractsIssuedThatAreLiabilities | {"amount": 154000000.0} | 2021-12-31 | esef |
| ifrs:IntangibleAssetsOtherThanGoodwill | {"amount": 622000000.0} | 2024-12-31 | esef |