| r0.c0 | Disclosure of income tax [text block]/lbl32625 | ifrs-full:DisclosureOfIncomeTaxExplanatory | nonnum:textBlockItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r1.c0 | Major components of tax expense (income) [abstract]/lbl32625 | ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r2.c0 | Current tax expense (income) and adjustments for current tax of prior periods [abstract]/lbl32625 | ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r3.c0 | Current tax expense (income)/lbl32625 | ifrs-full:CurrentTaxExpenseIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r4.c0 | Adjustments for current tax of prior periods/lbl32625 | ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r5.c0 | Current tax expense (income) and adjustments for current tax of prior periods/lbl32625 | ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r6.c0 | Deferred tax expense (income) relating to origination and reversal of temporary differences/lbl32625 | ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r7.c0 | Deferred tax expense (income) relating to tax rate changes or imposition of new taxes/lbl32625 | ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r8.c0 | Tax benefit arising from previously unrecognised tax loss, tax credit or temporary difference of prior period used to reduce current tax expense/lbl32625 | ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r9.c0 | Tax benefit arising from previously unrecognised tax loss, tax credit or temporary difference of prior period used to reduce deferred tax expense/lbl32625 | ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r10.c0 | Deferred tax expense arising from write-down or reversal of write-down of deferred tax asset/lbl32625 | ifrs-full:DeferredTaxExpenseArisingFromWritedownOrReversalOfWritedownOfDeferredTaxAsset | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r11.c0 | Tax expense (income) relating to changes in accounting policies and errors included in profit or loss/lbl32625 | ifrs-full:TaxExpenseIncomeRelatingToChangesInAccountingPoliciesAndErrorsIncludedInProfitOrLoss | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r12.c0 | Adjustments for deferred tax of prior periods/lbl32625 | ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r13.c0 | Other components of deferred tax expense (income)/lbl32625 | ifrs-full:OtherComponentsOfDeferredTaxExpenseIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r14.c0 | Tax expense (income)/lbl32625 | ifrs-full:IncomeTaxExpenseContinuingOperations | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r15.c0 | Current and deferred tax relating to items charged or credited directly to equity [abstract]/lbl32625 | ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquityAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r16.c0 | Current tax relating to items credited (charged) directly to equity/lbl32625 | ifrs-full:CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r17.c0 | Deferred tax relating to items credited (charged) directly to equity/lbl32625 | ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r18.c0 | Current and deferred tax relating to items credited (charged) directly to equity/lbl32625 | ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r19.c0 | Income tax relating to components of other comprehensive income [abstract]/lbl32625 | ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r20.c0 | Income tax relating to exchange differences on translation included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r21.c0 | Income tax relating to available-for-sale financial assets included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r22.c0 | Income tax relating to cash flow hedges included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r23.c0 | Income tax relating to changes in revaluation surplus included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToChangesInRevaluationSurplusOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r24.c0 | Income tax relating to remeasurements of defined benefit plans included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r25.c0 | Income tax relating to investments in equity instruments included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r26.c0 | Income tax relating to hedges of net investments in foreign operations included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r27.c0 | Income tax relating to changes in fair value of financial liability attributable to change in credit risk of liability included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r28.c0 | Income tax relating to hedges of investments in equity instruments included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToHedgesOfInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r29.c0 | Income tax relating to change in value of time value of options included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToChangeInValueOfTimeValueOfOptionsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r30.c0 | Income tax relating to change in value of forward elements of forward contracts included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToChangeInValueOfForwardElementsOfForwardContractsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r31.c0 | Income tax relating to change in value of foreign currency basis spreads included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToChangeInValueOfForeignCurrencyBasisSpreadsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r32.c0 | Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r33.c0 | Income tax relating to components of other comprehensive income/lbl32625 | ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r34.c0 | Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method/lbl32625 | ifrs-full:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r35.c0 | Tax expense (income) of discontinued operation [abstract]/lbl32625 | ifrs-full:TaxExpenseOfDiscontinuedOperationAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r36.c0 | Tax expense (income) relating to gain (loss) on discontinuance/lbl32625 | ifrs-full:TaxExpenseRelatingToGainLossOnDiscontinuance | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r37.c0 | Tax expense (income) relating to profit (loss) from ordinary activities of discontinued operations/lbl32625 | ifrs-full:TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r38.c0 | Explanation of changes in applicable tax rates to previous accounting period/lbl32625 | ifrs-full:ExplanationOfChangesInApplicableTaxRatesToPreviousAccountingPeriod | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r39.c0 | Description of expiry date of deductible temporary differences, unused tax losses and unused tax credits/lbl32625 | ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r40.c0 | Diferencias temporarias deducibles por las que no se reconoce activo por impuestos diferidos/lbl32625 | co-sspd-ef-Grupo1:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r41.c0 | Pérdidas fiscales no utilizadas para las que no se han reconocido activos por impuestos diferidos/lbl32625 | co-sspd-ef-Grupo1:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r42.c0 | Créditos fiscales no utilizados para los que no se han reconocido activos por impuestos diferidos/lbl32625 | co-sspd-ef-Grupo1:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r43.c0 | Diferencias temporarias relacionadas con inversiones en subsidiarias, sucursales y asociadas, y con participaciones en acuerdos conjuntos, para los cuales no se han reconocido pasivos por impuestos diferidos/lbl32625 | co-sspd-ef-Grupo1:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r44.c0 | Reconciliation of accounting profit multiplied by applicable tax rates [abstract]/lbl32625 | ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r45.c0 | Accounting profit/lbl32625 | ifrs-full:AccountingProfit | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r46.c0 | Tax expense (income) at applicable tax rate/lbl32625 | ifrs-full:TaxExpenseIncomeAtApplicableTaxRate | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r47.c0 | Tax effect of revenues exempt from taxation/lbl32625 | ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011 | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r48.c0 | Tax effect of expense not deductible in determining taxable profit (tax loss)/lbl32625 | ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r49.c0 | Tax effect of impairment of goodwill/lbl32625 | ifrs-full:TaxEffectOfImpairmentOfGoodwill | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r50.c0 | Tax effect of tax losses/lbl32625 | ifrs-full:TaxEffectOfTaxLosses | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r51.c0 | Tax effect of foreign tax rates/lbl32625 | ifrs-full:TaxEffectOfForeignTaxRates | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r52.c0 | Tax effect from change in tax rate/lbl32625 | ifrs-full:TaxEffectFromChangeInTaxRate | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r53.c0 | Other tax effects for reconciliation between accounting profit and tax expense (income)/lbl32625 | ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r54.c0 | Tax expense (income)/lbl32625 | ifrs-full:IncomeTaxExpenseContinuingOperations | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r55.c0 | Reconciliation of average effective tax rate and applicable tax rate [abstract]/lbl32625 | ifrs-full:ReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateAbstract | xbrli:stringItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r56.c0 | Accounting profit/lbl32625 | ifrs-full:AccountingProfit | xbrli:monetaryItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r57.c0 | Applicable tax rate/lbl32625 | ifrs-full:ApplicableTaxRate | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r58.c0 | Tax rate effect of revenues exempt from taxation/lbl32625 | ifrs-full:TaxRateEffectOfRevenuesExemptFromTaxation | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r59.c0 | Tax rate effect of expense not deductible in determining taxable profit (tax loss)/lbl32625 | ifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r60.c0 | Tax rate effect of impairment of goodwill/lbl32625 | ifrs-full:TaxRateEffectOfImpairmentOfGoodwill | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r61.c0 | Tax rate effect of tax losses/lbl32625 | ifrs-full:TaxRateEffectOfTaxLosses | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r62.c0 | Tax rate effect of foreign tax rates/lbl32625 | ifrs-full:TaxRateEffectOfForeignTaxRates | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r63.c0 | Tax rate effect from change in tax rate/lbl32625 | ifrs-full:TaxRateEffectFromChangeInTaxRate | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r64.c0 | Tax rate effect of adjustments for current tax of prior periods/lbl32625 | ifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r65.c0 | Other tax rate effects for reconciliation between accounting profit and tax expense (income)/lbl32625 | ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |
| r66.c0 | Average effective tax rate/lbl32625 | ifrs-full:AverageEffectiveTaxRate | num:percentItemType | duration | xs:date('2020-01-01')/xs:date('2020-12-31') |