lbl31144 -

Disclosure of significant accounting policies [text block]
conceptifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for available-for-sale financial assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForAvailableforsaleFinancialAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for borrowing costs [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForBorrowingCostsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for borrowings [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForBorrowingsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for business combinations and goodwill [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for cash flows [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForCashFlowsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for construction in progress [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForConstructionInProgressExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for contingent liabilities and contingent assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for decommissioning, restoration and rehabilitation provisions [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDecommissioningRestorationAndRehabilitationProvisionsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for deferred income tax [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for depreciation expense [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDepreciationExpenseExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for derecognition of financial instruments [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for derivative financial instruments and hedging [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for determining components of cash and cash equivalents [text block]
conceptifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalentsy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for discontinued operations [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDiscontinuedOperationsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for dividends [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForDividendsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for earnings per share [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for emission rights [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForEmissionRightsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for employee benefits [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for expenses [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForExpensesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for fair value measurement [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFairValueMeasurementExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for finance costs [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFinanceCostsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for finance income and costs [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for financial assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for financial instruments [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for financial instruments at fair value through profit or loss [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for financial liabilities [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for foreign currency translation [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for functional currency [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for goodwill [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for government grants [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForGovernmentGrantsy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for hedging [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForHedgingExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for held-to-maturity investments [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForHeldtomaturityInvestmentsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for impairment of assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for impairment of financial assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for impairment of non-financial assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for income tax [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for insurance contracts and related assets, liabilities, income and expense [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForInsuranceContractsy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for intangible assets and goodwill [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for intangible assets other than goodwill [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for interest income and expense [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for investment in associates [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociatesy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for investments in joint ventures [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForInvestmentsInJointVenturesy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for investment property [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForInvestmentPropertyExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for investments other than investments accounted for using equity method [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for issued capital [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for leases [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for loans and receivables [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForLoansAndReceivablesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for measuring inventories [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForMeasuringInventoriesy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for non-current assets or disposal groups classified as held for sale and discontinued operations [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for oil and gas assets [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForOilAndGasAssetsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for property, plant and equipment [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for provisions [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for reclassification of financial instruments [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForReclassificationOfFinancialInstrumentsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for recognising in profit or loss difference between fair value at initial recognition and transaction price [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for recognition of revenue [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenuey
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for repairs and maintenance [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForRepairsAndMaintenanceExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for research and development expense [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for restricted cash and cash equivalents [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForRestrictedCashAndCashEquivalentsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for service concession arrangements [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForServiceConcessionArrangementsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for share-based payment transactions [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for stripping costs [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForStrippingCostsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for subsidiaries [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForSubsidiariesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for termination benefits [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForTerminationBenefitsy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for trade and other payables [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for trade and other receivables [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for trading income and expense [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for transactions with non-controlling interests [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of accounting policy for transactions with related parties [text block]
conceptifrs-full:DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatoryy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x
Description of other accounting policies relevant to understanding of financial statements [text block]
conceptifrs-full:DescriptionOfOtherAccountingPoliciesRelevantToUnderstandingOfFinancialStatementsy
periodxs:date('2020-01-01')/xs:date('2020-12-31')x