COP


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:SharesOutstanding
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:SharesIssued

us-gaap:CommonStockSharesIssued
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:CommonStockSharesOutstanding
us-gaap:AwardType, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit
us-gaap:BusinessAcquisition

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestAndDebtExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:OperatingCostsAndExpenses

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:Energy
us-gaap:MajorCustomers
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ReserveQuantitiesByTypeOfReserve
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ShortTermInvestments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:MarketableSecuritiesCurrent
us-gaap:FairValueByMeasurementFrequency

us-gaap:InventoryNet

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:Restatement

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
us-gaap:Restatement

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:Restatement

us-gaap:OtherAssetsNoncurrent
us-gaap:Restatement

us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument

us-gaap:AccountsPayableCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:DebtCurrent
us-gaap:Restatement

us-gaap:LiabilitiesCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OtherLiabilitiesCurrent
us-gaap:Restatement

us-gaap:TaxesPayableCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebt
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:FairValueByMeasurementBasis

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations
us-gaap:Restatement

us-gaap:DeferredIncomeTaxLiabilitiesNet
us-gaap:BalanceSheetLocation

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
us-gaap:Restatement

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:ProceedsFromSaleOfShortTermInvestments

us-gaap:ProceedsFromSaleOfLongtermInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:EquitySecuritiesFvNiSharesSold

cop:ExplorationAbandonmentAndImpairmentCashPayments
us-gaap:StatementGeographical, us-gaap:StatementScenario, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType
cop:FuturePricesAnnualIncreaseDecreasePercentage

cop:IncreaseDecreaseInCapitalAccrual

cop:OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense

cop:ProceedsFromCommonStockIssuance
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:ProceedsFromSaleOfEquitySecuritiesFvNi
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:ProceedsRecognizedFromSaleOfEquitySecuritiesFvNi

cop:RelatedPartyRevenue

cop:RelatedPartyTransactionsRelatedPartyRevenue
us-gaap:StatementGeographical, us-gaap:StatementScenario, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType
srt:AverageSalesPrices

us-gaap:AccretionExpenseIncludingAssetRetirementObligations

us-gaap:AssetImpairmentCharges

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
us-gaap:BusinessAcquisition, us-gaap:EquityInterestIssuedOrIssuableByType
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax
us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk
us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaRevenue
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed
us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:ContingentConsiderationByType, us-gaap:SubsequentEventType
us-gaap:BusinessExitCosts1

us-gaap:CapitalizedExploratoryWellCostChargedToExpense1

us-gaap:CashAcquiredFromAcquisition

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanSpecialTerminationBenefits

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquitySecuritiesFvNiGainLoss
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquitySecuritiesFvNiRealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss
us-gaap:FinancialInstrument
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

us-gaap:ExplorationExpense

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
us-gaap:IncomeStatementLocation
us-gaap:GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet
us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk
us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments
us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:GainLossOnSaleOfOilAndGasProperty
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:GainLossOnSaleOfPropertyPlantEquipment
us-gaap:BusinessAcquisition
us-gaap:GoodwillImpairmentLoss
us-gaap:BusinessAcquisition
us-gaap:ImpairmentOfOilAndGasProperties

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsBeforeIncomeTax

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
us-gaap:BusinessAcquisition
us-gaap:IncreaseDecreaseInCommodityContractAssetsAndLiabilities
us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:IncreaseDecreaseInDeferredIncomeTaxes
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:IncreaseDecreaseInPensionPlanObligations
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInRestructuringReserve

us-gaap:InterestIncomeRelatedParty
us-gaap:BusinessAcquisition
us-gaap:LiabilitiesFairValueAdjustment
us-gaap:ConsolidatedEntities
us-gaap:LitigationSettlementAmountAwardedFromOtherParty
us-gaap:ConsolidatedEntities, us-gaap:LitigationCase
us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyDamagesSoughtValue

us-gaap:MinorityInterestDecreaseFromRedemptions
us-gaap:StatementEquityComponents

us-gaap:NumberOfOperatingSegments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherNonoperatingExpense

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:PaymentsForProceedsFromInvestments

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForRestructuring
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsToAcquireLongtermInvestments

us-gaap:PaymentsToAcquireShortTermInvestments
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:PensionExpenseReversalOfExpenseNoncash

us-gaap:ProceedsFromCollectionOfLongtermLoansToRelatedParties

us-gaap:ProceedsFromCustomers

us-gaap:ProceedsFromIssuanceOfCommercialPaper

us-gaap:ProceedsFromIssuanceOfCommonStock
us-gaap:ConsolidatedEntities, us-gaap:LitigationCase
us-gaap:ProceedsFromLegalSettlements

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfProductiveAssets
us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets

us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty

us-gaap:RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty

us-gaap:RepaymentsOfDebt
us-gaap:BusinessAcquisition
us-gaap:RestructuringCharges
us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

us-gaap:StockIssuedDuringPeriodValueAcquisitions
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents

us-gaap:TaxesExcludingIncomeAndExciseTaxes

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents
us-gaap:BusinessAcquisition
us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition

cop:AROAndAccruedEnvironmentalCosts

cop:AROAndAccruedEnvironmentalCostsLongTerm

cop:AccruedEnviornmentalCostsDiscounted

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostsDueWithinOneYear
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
cop:BalanceOutstandingOnCreditFacility
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
cop:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableShares
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
cop:BusinessCombinationNotesOfferedInExchange
us-gaap:BusinessAcquisition
cop:BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:BusinessCombinationPercentOfOutstandingSharesUponCompletion

cop:BusinessCombinationShareExchangeRatio
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
cop:BusinessCombinationTenderedAndExchangedNotesForNewDebt
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
cop:CashAndCashEquivalentsAtFairValue
us-gaap:InvestmentSecondaryCategorization

cop:CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest
us-gaap:CashAndCashEquivalents
us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk

cop:CashAndCashEquivalentsCarriedatCostPlusAccruedInterest
us-gaap:CashAndCashEquivalents
us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk

cop:DeferredTaxAssetsAssetRetirementObligationsAndAccruedEnvironmentalCosts

cop:DeferredTaxAssetsOtherFinancialAccrualsAndDeferrals

cop:DeferredTaxLiabilitiesPropertiesPlantsAndEquipmentAndIntangibles
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
cop:Equitymethodinvestmentdifferencebetweencarryingamountandunderlyingequityallocatedtoindividualexplorationandproductionlicenseareas
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
cop:FairValueOfParticipatingInterestInAnnuityContract
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:FinancialInstrument
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
cop:GasAndOilAreaUndevelopedNet1
us-gaap:ConsolidationItems, us-gaap:Ownership, us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:InvestmentInEquitySecuritiesFairValue
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:InvestmentInEquitySecurityFairValue
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:InvestmentOwnedCommonStockPercentOfIssuedAndOutstanding
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:InvestmentOwnedCommonStockPricePerShare
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
cop:InvestmentsAndLongTermReceivableCarriedAtFairValue
us-gaap:InvestmentSecondaryCategorization

cop:InvestmentsAndLongTermReceivablesCarriedAtCostPlusAccruedInterest
us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
cop:LineOfCreditFacilityValueOutstanding
us-gaap:LitigationCase, us-gaap:StatementGeographical
cop:LitigationSettlementAmountAwardedFromOtherPartyRevised
us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments
cop:PercentSold

cop:SettledDebtExchangeOfferPercentOfHistoricalNotes
us-gaap:AwardType
cop:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsNonVestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
cop:ShareBasedCompensationArrangementByShareBasedPaymentAwardInstrumentsOtherThanOptionsOutstandingNumber
us-gaap:AwardType, us-gaap:StatementOperatingActivitiesSegment
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument
cop:SharesExchangeForAssetsHeldForSale

cop:ShorTtermInvestmentsExcludingCenovus
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis
us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization
cop:ShortTermInvestmentsAtFairValue
us-gaap:InvestmentSecondaryCategorization

cop:ShortTermInvestmentsCarriedAtCostPlusAccruedInterest
us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk

cop:ShortTermInvestmentsCarriedAtCostPlustAccruedInterest
us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk

cop:ShortTermInvestmentsExcludingCenovus
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
cop:StockForStockExchangeFixedRatio

dei:EntityCommonStockSharesOutstanding
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
srt:GasAndOilAreaUndevelopedNet
us-gaap:ConsolidationItems, us-gaap:Ownership, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:Ownership, us-gaap:StatementScenario, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:ConsolidationItems, us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType

srt:PayablesToBrokerDealersAndClearingOrganizations
us-gaap:Range, us-gaap:StatementGeographical, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:ValuationTechnique
srt:ProvedDevelopedReservesVolume

us-gaap:AccountsAndNotesReceivableNet

us-gaap:AccountsReceivableNet
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AccountsReceivableNetNoncurrent

us-gaap:AccrualForEnvironmentalLossContingencies
us-gaap:StatementGeographical

us-gaap:AccrualForEnvironmentalLossContingenciesDiscountRate

us-gaap:AccrualForEnvironmentalLossContingenciesGross
us-gaap:EnvironmentalRemediationContingency

us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear

us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear

us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear

us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear

us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear

us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
cop:CreditRisk
us-gaap:AdditionalCollateralAggregateFairValue

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:StatementGeographical, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:ValuationTechnique
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleSecuritiesCurrent
us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent

us-gaap:AvailableForSaleSecuritiesEquitySecuritiesCurrent
us-gaap:FairValueByMeasurementBasis
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisitionSharePrice
us-gaap:Range, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentLiability
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestructuringLiabilities

us-gaap:CapitalLeaseObligations

us-gaap:CapitalizedCostsProvedProperties
us-gaap:BusinessAcquisition

us-gaap:CapitalizedCostsUnprovedProperties
us-gaap:BusinessAcquisition

us-gaap:CapitalizedExploratoryWellCosts

us-gaap:CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear

us-gaap:CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess

us-gaap:CollateralAlreadyPostedAggregateFairValue

us-gaap:ContractWithCustomerLiability
us-gaap:ContractWithCustomerDuration

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet

us-gaap:DeferredCreditsAndOtherLiabilities
us-gaap:Restatement
us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInvestments

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOtherLossCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign
us-gaap:IncomeTaxAuthorityName

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts

us-gaap:DeferredTaxLiabilitiesOther
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:RetirementPlanFundingStatus, us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanSponsorLocation
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:RestructuringPlan, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:RestructuringPlan, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1

us-gaap:DerivativeAssetCollateralObligationToReturnCashOffset

us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssetFairValueGrossLiability

us-gaap:DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection

us-gaap:DerivativeAssetNotSubjectToMasterNettingArrangement
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeAssets
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis

us-gaap:DerivativeCollateralObligationToReturnCash

us-gaap:DerivativeCollateralRightToReclaimCash

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral

us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis
us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeNet

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset

us-gaap:DerivativeLiabilityFairValueGrossAsset

us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection

us-gaap:DerivativeLiabilityNotSubjectToMasterNettingArrangement

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue
cop:CreditRisk
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:DerivativeNonmonetaryNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DueFromRelatedParties
us-gaap:FairValueByMeasurementBasis
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsInAndAdvancesToAffiliatesCategorization

us-gaap:DueFromRelatedPartiesCurrent

us-gaap:DueFromRelatedPartiesNoncurrent

us-gaap:DueToRelatedPartiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:LitigationCase, us-gaap:Ownership
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentUnderlyingEquityInNetAssets

us-gaap:EquityMethodInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentsFairValueDisclosure

us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue

us-gaap:FinanceLeaseLiability
us-gaap:Restatement
us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:FinanceLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
us-gaap:BalanceSheetLocation
us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:BalanceSheetLocation
us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsCurrentCarryingValue
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:GuaranteeObligationsByNature

us-gaap:IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority

us-gaap:InventoryCrudeOilProductsAndMerchandise

us-gaap:InvestmentsFairValueDisclosure
us-gaap:FinancialInstrument

us-gaap:InvestmentsInAndAdvancesToAffiliatesAtFairValue
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:LIFOInventoryAmount

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount
us-gaap:CreditFacility
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LongTermAccountsNotesAndLoansReceivableNetNoncurrent
us-gaap:BusinessAcquisition
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermInvestmentsAndReceivablesNet
us-gaap:ConsolidationItems, us-gaap:Ownership, us-gaap:StatementBusinessSegments
us-gaap:MinorityInterestOwnershipPercentageByParent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherInvestments
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue

us-gaap:PropertyPlantAndEquipmentOther
us-gaap:BalanceSheetLocation
us-gaap:RestrictedCash

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RetainedEarningsUndistributedEarningsFromEquityMethodInvestees
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:StatementOperatingActivitiesSegment

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
dei:LegalEntity, us-gaap:FinancialInstrument
us-gaap:SharePrice
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

us-gaap:TreasuryStockShares

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary

us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount

us-gaap:UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Liability
Assets
Inventory Net
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Contract With Customer Liability Current
Noncurrent Liabilities
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Cash Paid
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Payable
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
DividendsAndRepurchase
Dividends Common Stock
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ██▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁21.021.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.017.017.017.017.017.0NANANA
 us-gaap:SharesOutstanding dei:LegalEntity,us-gaap:BusinessAcquisition cop:ConchoResourcesInc,cop:ConchoResourcesIncNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SharesOutstanding dei:LegalEntity,us-gaap:BusinessAcquisition cop:ConchoResourcesInc,cop:ConchoResourcesIncorporatedNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SharesOutstanding us-gaap:BusinessAcquisition,us-gaap:SubsequentEventType cop:ConchoResourcesInc,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:SharesIssued NANA1798.844267NANANA1795.652203NANANA1791.637434NANANA1785.419175NANANA1782.079107NANANA1778.226388NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesIssued 2087.542804NA1798.8442671798.7385121798.5630791798.4220311795.6522031795.2437451794.922851794.6810421791.6374341790.9242151788.9505361787.239081785.4191751785.1957381784.9271811784.1506511782.0791071781.2580821780.7358321780.6178891778.2263881776.8726641775.6892421775.1772891773.5833681773.1435451771.7986091769.936131768.1699061767.3293711765.2379291764.8918531762.2479491757.0897961754.9970041753.7554161749.5505871746.7319751745.6011031744.7019111740.529279NANANA
 us-gaap:CommonStockSharesOutstanding dei:LegalEntity,us-gaap:BusinessAcquisition cop:ConchoResourcesInc,cop:ConchoResourcesIncNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CommonStockSharesOutstanding dei:LegalEntity,us-gaap:BusinessAcquisition cop:ConchoResourcesInc,cop:ConchoResourcesIncorporatedNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:AwardType,us-gaap:BusinessAcquisition,us-gaap:SubsequentEventType us-gaap:RestrictedStock,cop:ConchoResourcesInc,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁1353.2011.302691NA1077.3771077.6061.084561NA1.113251.1312421.146515NA1.1726941.1811671.186454NA1215.3411236.8311.248722NA1.2459611.2448921.244557NA1.2421251.2410261.245531NA1.2474361.2451551.242667NA1.2403651.2371571.235907NA1.2293431258.1891293.104NA1369.5621412.1471445.477NA1493.081501.2571503.565
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁1348.6371.300375NA1077.3771076.6591.084561NA1.1085551.1259951.139463NA1.1630331.1723781.179792NA1212.4541236.8311.24328NA1.2459611.2448921.244557NA1.2421251.2410261.240791NA1.2382341.2360571.234968NA1.2310541.2297731.229232NA1.2204621248.31283.493NA1357.711399.4731432.285NA1481.5221489.8141492.861
us-gaap:EarningsPerShareBasic ▆▅▄▄▅▂▅█▆▇▇▇▆▅▆▅▁▅▄▃▃▃▁▃▄▅▄▇▇▇▇▇▇▇▆▆▇▇█▇█▇▆▇█▆1.550.75-0.7199999999999998-0.420.24-1.60.67999999999999972.761.41.611.621.61.40.751.280.35-2.780.47-0.03000000000000025-0.84-0.86-1.18-2.7800000000000002-0.87-0.150.22-0.0400000000000000362.181.681.722.01999999999999962.011.661.741.171.471.822.292.55999999999999871.932.432.111.422.062.791.41
us-gaap:EarningsPerShareDiluted █▁1.550.75NA-0.420.24-1.6NA2.741.41.6NA1.591.390.751.280.34-2.780.47-0.03000000000000025-0.84-0.86-1.18-2.7800000000000002-0.87-0.150.22-0.030000000000000252.171.671.712.02.01.651.731.171.461.82.272.55000000000000071.912.412.091.41000000000000012.052.771.4
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▆▅▄▄▄▂▅▆▅▅▅▅▅▅▅▅▁▄▃▃▃▄▁▁▄▂▂▄▆▅▅▆▄▅▅▆▅▇▆▄▇▇▆█▆▆2251.01120.0-324.0-291.0580.0-2527.01017.03229.01667.02022.01247.02056.01374.0977.01353.01470.0-3821.0818.0-784.0-1113.0-1296.0-368.0-3572.0-3555.0769.0-2415.0-2526.0791.02777.01923.01777.03352.0412.01530.01174.02260.01798.03823.03273.0-306.03980.03802.02409.05579.02770.02308.0
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest NANA0.00.018.028.023.015.017.013.010.012.014.012.019.016.014.013.016.014.013.013.013.015.015.014.015.023.017.014.016.016.013.014.015.015.022.018.020.015.017.0-14.012.014.019.0-14.0
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▅▄▄▄▂▅▆▅▅▅▅▅▅▅▅▁▄▃▃▃▄▁▁▄▂▂▄▆▅▅▆▄▅▅▆▅▇▆▄▇▇▆█▆▆2251.01120.0-324.0-291.0598.0-2499.01040.03244.01684.02035.01257.02068.01388.0989.01372.01486.0-3807.0831.0-768.0-1099.0-1283.0-355.0-3559.0-3540.0784.0-2401.0-2511.0814.02794.01937.01793.03368.0425.01544.01189.02275.01820.03841.03293.0-291.03997.03816.02421.05593.02789.02322.0
us-gaap:CostOfGoodsAndServicesSold ▅█▄▂▁▄▄▄▄▆▇▆▅▆▆▅2998.04483.02448.01839.01130.02661.02783.02710.02674.03675.03986.03530.03064.03714.03435.02926.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidationItems,us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,cop:BarossaProject,cop:AsiaPacificOperatingSegmentNA200.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations cop:FosterCreekChristinaLakeFcclAndWesternCanadaGasProperties68.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▇▄▅▅▄▆█▇▇▇█▇▇▆▆▂▅▅▄▄▃▁▄▅▅3080.01714.0-1086.0-512.021.0-1563.01286.03493.02058.02687.02672.02906.02619.01776.01325.0653.0-4361.0-232.0-8.0-1654.0-1644.0-2224.0-5051.0-1741.0-91.0-356.0NA2553.03460.03698.0NA4405.03696.03787.0NA3591.03945.04265.0NANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▅▅▃▃▃▄▄▄▄▅▅▅▅▅▃▄▂▂▄▃▃▂▁▂▄▃▃▅▆▆▅▇▆▆▆▇▇█▇███▇▇▇▇989.0732.0-314.0-62.0-257.0148.0543.0422.0461.0841.0794.01033.0965.0876.0-273.0217.0-935.0-831.011.0-628.0-586.0-768.0-1614.0-685.073.0-642.0-297.0904.01395.01581.01050.01966.01630.01763.01437.01945.02334.02520.02423.02549.02773.02754.02239.02205.02011.01878.0
us-gaap:IncomeTaxesPaidNet ▂▂▂▂▂▃▃▃▄▃▄▃▄▃▃▂▂▂▂▂▁▂▂▂▃▁▄▄▅▃▄▄▅▄▆▅█▅▇▆▇▇▇▆▆▅54.053.0102.042.0296.0465.0695.0638.0872.0700.01049.0620.01307.0521.0594.0237.0187.0150.021.027.0-499.0133.0147.0204.0425.0-253.0844.01038.01654.0667.0860.01189.01662.01199.02174.01698.03234.01462.02858.02251.02730.02722.02452.02097.02329.01596.0
us-gaap:InterestAndDebtExpense ▄▄▃▃▃▃▃▃▂▄▃▃▃▃▄▅▇▇▇█▇▆▅▅▄▃▂▂▂▂▃▂▁▁▂▂▃▄▄▄▅▅▆▅█▆220.0226.0202.0200.0202.0202.0196.0184.0165.0233.0188.0186.0177.0184.0226.0251.0306.0315.0317.0335.0312.0281.0268.0240.0210.0202.0173.0149.0155.0171.0192.0151.0139.0130.0161.0161.0197.0209.0228.0235.0247.0262.0273.0264.0349.0301.0
us-gaap:InterestPaidNet ▄▄▃▃▃▃▃▃▄▃▃▃█▄▄▄▇▆▆▆▅▄▅▄▃▃▃▃▁▃▂▃▁▂▂▄▁▅▃▅▄▅▄▆▇▆231.0233.0194.0194.0197.0200.0196.0200.0215.0199.0188.0179.0405.0220.0245.0242.0349.0327.0297.0328.0282.0244.0287.0234.0202.0197.0178.0180.0112.0199.0118.0189.0102.0157.0128.0213.092.0291.0184.0253.0209.0286.0214.0336.0338.0322.0
us-gaap:NetIncomeLoss ▆▅▃▄▄▃▅▇▆▆▆▆▆▅▆▅▁▅▄▃▃▃▁▃▄▄▄▇▆▆▆▆▆▆▅▆▆▇▇▇▇▇▆▇█▆2091.0982.0-772.0-450.0260.0-1739.0720.03056.01580.01833.01868.01861.01640.0888.01579.0420.0-3440.0586.0-35.0-1040.0-1071.0-1469.0-3450.0-1071.0-179.0272.0-39.02704.02081.02123.02487.02480.02050.02139.01426.01798.02267.02937.03390.02616.03402.03028.02041.03055.04164.02098.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest NANA0.00.018.028.023.015.017.013.010.012.014.012.019.016.014.013.016.014.013.013.013.015.015.014.015.023.017.014.016.016.013.014.015.015.022.018.020.015.017.014.012.014.019.014.0
us-gaap:OperatingCostsAndExpenses ▂▂▂▁▁▂▂▂▃▂▂▂▂▂▂▂▂▂▂▃▃▂▃▄▄▄█▅▅▄1379.01383.01161.0963.01047.01173.01302.01331.01418.01271.01362.01367.01313.01171.01324.01224.01327.01298.01342.01526.01445.01354.01582.01834.01798.01802.02943.02041.02030.01895.0NANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▆▆▇▆▇▅▆▆▆▆▅▆▅▆▆▇▆▆▅▆▆█▅▂▇▁▃▃▇▆▄▇▃▅▆▇▅▇▇▁▇96.069.0510.0190.0309.0-797.0204.0245.070.0176.0-420.059.0-359.078.0-134.0509.027.0184.0-719.0-82.0-224.01183.0-712.0-2519.0787.0-2719.0-1986.0-1932.0677.0-226.0-989.0621.0-1674.0-644.0-188.0612.0-500.0834.0619.0-2970.0540.0NANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▆▇▆▇▅▇▆▆▆▅▆▆▆▆█▅▆▅▆▆█▆▂█▁▂▃▇▆▅█▃▅▆▇▅█▆▁▇160.0138.0448.0159.0320.0-788.0297.0173.087.0189.0-621.0195.0-266.089.0-226.01050.0-381.0232.0-749.0-73.0-225.01101.0-122.0-2484.0948.0-2687.0-2487.0-1913.0696.0-200.0-710.0872.0-1638.0-609.0-252.0462.0-469.0886.0-117.0-2922.0578.0NANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆▇▇▆█▁▇▇▆█▄▇▇▆▇▆▆▆-37.0378.0474.0-38.0594.0-1539.0222.0262.0172.0702.0-500.0309.0416.0-52.0386.065.047.031.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▆▅▃▄▄▃▅▇▆▆▆▆▆▅▆▅▁▅▄▃▃▃▁▃▄▄▄▇▆▆▆▆▆▆▅▆▆▇▇▇▇▇▆▇█▆2091.0982.0-772.0-450.0278.0-1711.0743.03071.01597.01846.01878.01873.01654.0900.01598.0436.0-3426.0599.0-19.0-1026.0-1058.0-1456.0-3437.0-1056.0-164.0286.0-24.02727.02098.02137.02503.02496.02063.02153.01441.01813.02289.02955.03410.02631.03419.03042.02053.03069.04183.02112.0
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆█▁█▇▇9556.09826.05491.04386.02749.06158.07708.07756.07953.09150.09666.09449.08504.08798.08119.06688.06781.07518.06587.06516.05575.05015.06766.07507.08660.08002.011851.012917.014701.016048.013985.015470.014142.014651.015279.015089.015166.016083.014903.016695.017668.056530.0-74380.047208.045686.044821.0
us-gaap:Revenues ▆▆▅▅▅▅▅▆▅▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆█▁█▇▇10211.010559.06049.04380.04016.04811.08140.010093.08380.010057.010361.010165.09240.08961.08736.07195.08882.07771.07254.06516.05575.05015.06766.07507.08660.08002.011851.012917.014701.016048.013985.015470.014142.014651.015279.015089.015166.016083.014903.016695.017668.056530.0-74380.047208.045686.044821.0
us-gaap:SellingGeneralAndAdministrativeExpense ▂▄▃▂▃▁▃▂▂▃▂▂▂▂▂▂▂▃▃▃▃▃▄▄▃▃▂▃▃▃▄▄▃▃▃▄▃█▇▆▆▆▇▆▅▆117.0311.0181.096.0156.0-3.0187.087.0129.0153.065.0119.0118.099.0138.0132.0134.0157.0167.0203.0167.0186.0283.0293.0218.0159.0132.0203.0218.0182.0247.0249.0193.0165.0214.0330.0235.0685.0599.0466.0514.0499.0630.0493.0438.0444.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▃▂▁▁▁▁▂▂▂▂▂▂▁▂▂▂▂▃▃▃▃▄▃▄▄▄▅▅▅▅▅▅▅▅▅▅▅█▇▇███85403.083693.062618.063157.063046.065033.070514.070340.071261.071498.069980.070556.068936.070727.073362.074861.078004.087973.089772.094284.096054.099834.097484.0105949.0112003.0110042.0116539.0118986.0121648.0120025.0118057.0119760.0116947.0117780.0117144.0115369.0114008.0162881.0153230.0154689.0160068.0159643.0156314.0NANANA
us-gaap:Liabilities ▂▂▁▁▁▁▁▁▂▂▂▂▂▂▂▂▃▃▄▄▄▄▄▄▄▄▅▄▅▅▅▅▅▅▅▅▅█▇▇▇▇▇41127.040538.032769.032374.031553.033646.035464.035101.038187.038517.037916.038477.037714.040009.042561.044149.047505.052372.054546.057828.058223.060427.057402.061394.063034.061034.064266.063325.065962.066404.065565.068223.068015.068540.068717.067492.067565.095838.087496.088363.089490.089122.087205.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▃▂▁▁▁▁▂▂▂▂▂▂▁▂▂▂▂▃▃▃▃▄▃▄▄▄▅▅▅▅▅▅▅▅▅▅▅█▇▇███85403.083693.062618.063157.063046.065033.070514.070340.071261.071498.069980.070556.068936.070727.073362.074861.078004.087973.089772.094284.096054.099834.097484.0105949.0112003.0110042.0116539.0118986.0121648.0120025.0118057.0119760.0116947.0117780.0117144.0115369.0114008.0162881.0153230.0154689.0160068.0159643.0156314.0NANANA
us-gaap:StockholdersEquity NA43155.029849.030783.031493.031315.034981.035146.032976.032859.031939.031950.031042.030546.030607.030500.030286.035353.034974.036170.037544.039089.039762.044210.048620.048652.051911.055274.055315.053222.052090.051113.048508.048803.047987.047406.045971.066534.065224.065806.070059.069972.068562.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▃▂▂▂▂▂▃▃▃▂▂▃▂▂▃▃▄▂▁▁▁▂▁▁▂▂▃▃▄▄▄▄▄▅▅▃▃█▆▇▇█▇17172.014614.012066.011059.011053.013144.016913.015217.015800.013683.013274.014723.011608.013187.016512.016954.019879.010728.08609.09641.09259.010934.08789.09664.011944.010840.015068.016253.018836.020400.019023.022557.022602.024235.023989.015781.016912.037066.030218.032391.034678.035613.034660.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▃▃▂▃▃▄▆▅▅▅▃▃▄▅▆▆▃▃▄▃▄▂▂▃▂▄▅▅▆▅▃▃▅▃▁▁▃▅▃▅▅█▇▄▁6608.02831.02991.02490.02907.03908.05088.07193.05941.06218.05915.03716.03234.04984.06325.06911.07534.03109.03610.04090.02863.04866.02368.02413.03813.02664.05062.05408.06142.07520.06246.03883.03909.05422.03618.01268.01044.03707.05780.03437.05505.06172.09454.07996.04120.0855.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▇▂▂▁▂▃▅█▆▆▆▃▂▅▇▇█▁▂6956.03163.03315.02796.03190.04183.05362.07458.06197.06470.06151.03940.03457.05206.06536.06911.07534.03109.03610.0NANANA2368.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShortTermInvestments NANA3609.0NANANA3028.0NA732.0249.0248.0875.0612.0288.01873.02696.02733.0252.050.0234.01289.0307.0NANANANA0.0374.0288.0210.0272.0NA75.023.0NA0.0NA508.0581.02589.02635.02231.0973.0NANANA
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us-gaap:InventoryNet ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▂▂▂▁▁▂▁▁▁▁▁▆▅▇▇█▅1138.01098.01002.01034.0982.0726.01026.0955.01089.01014.01007.01239.01093.01053.01060.01023.01019.01097.01018.01108.01150.01072.01124.01143.01277.01233.01331.01330.01291.01221.01194.01268.01134.01133.0965.01176.01178.06072.04631.07164.06986.07944.05197.0NANANA
us-gaap:InventoryRawMaterialsAndSupplies ▄▃▂▁▁▁▃▃█▇▅▄▄▃▃566.0557.0541.0531.0530.0534.0554.0556.0608.0595.0575.0566.0563.0550.0548.0NANANA600.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▁▁▁▁▁▂▂▁▃▁▁▂▁▁▁▁▄▃▁▁▁▁▁▂▂▂▂▂▃▃▃██▇█▂▂▃▃849.0536.0454.0575.0676.01960.02259.0594.02552.0528.0575.02308.0580.0894.01035.0876.03897.02911.0517.0889.0641.0735.0783.01644.01675.01564.01868.01688.02911.02798.02824.09001.09064.08759.09476.01686.01971.03246.02700.0NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NoncurrentAssets NANA47603.0NANANA50722.0NANANA55038.0NANANA55273.0NANANA79276.0NANANA86992.0NANANA99674.0NANANA97164.0NANANA91211.0NANANA116840.0NANANA114789.0NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical cop:OtherforeigncountriesmemberNANA1087.0NANANA1308.0NANANA1346.0NANANA2122.0NANANA2234.0NANANA2469.0NANANANANANANANANANANANANANANANANANANANANANANA
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 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:CANANA6385.0NANANA5769.0NANANA5333.0NANANA5613.0NANANA16846.0NANANA16766.0NANANA20874.0NANANA21380.0NANANA21304.0NANANA20083.0NANANA20439.0NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:CNNANA1491.0NANANA1447.0NANANA1380.0NANANA1275.0NANANA1372.0NANANA1647.0NANANA1913.0NANANA2143.0NANANA2408.0NANANA2449.0NANANA2656.0NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:GBNANA1.0NANANA2.0NANANA1583.0NANANA3335.0NANANA3209.0NANANA4154.0NANANA5327.0NANANA5959.0NANANA4480.0NANANA3257.0NANANA2975.0NANANA
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 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:LYNANA670.0NANANA668.0NANANA679.0NANANA699.0NANANA704.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:MYNANA1501.0NANANA1871.0NANANA2327.0NANANA2736.0NANANA3323.0NANANA3599.0NANANA3811.0NANANA3406.0NANANA1832.0NANANA1349.0NANANANANANANA
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 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:USNANA24034.0NANANA26566.0NANANA26838.0NANANA23623.0NANANA32949.0NANANA37445.0NANANA39641.0NANANA37593.0NANANA35443.0NANANA33750.0NANANA32246.0NANANA
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us-gaap:PropertyPlantAndEquipmentGross NANA102106.0NANANA97746.0NANANA110597.0NANANA110431.0NANANA131406.0NANANA136859.0NANANA146230.0NANANA138148.0NANANA126179.0NANA151253.0149209.0147135.0150224.0147409.0143225.0NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:Restatement srt:ScenarioPreviouslyReportedNANA1375.0NANANA1039.0NANANA1044.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▅▄▄▂▂▁▁▃▃▅▄▅▆▅▄▄▃▅█▇██▇██▆▇▆▆▅▅▄▃▃▂▃▂▅▅▄▅▄▃65572.064082.062213.058726.057176.055425.055477.060014.060043.066969.064899.066664.068169.066710.064748.064115.062018.066400.073075.072984.074243.073521.070413.074420.073854.070256.070786.070117.069511.066890.065321.063399.060824.059518.058916.059890.057220.065694.065029.064045.065956.063644.060671.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ▄▄▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▃▄▄▅▅▅▆▆▆▆▇▆▆▆▆▆▅▅▆▆██████57717.058270.039893.041269.041120.040645.042269.043814.044334.045942.045698.044736.046306.045997.045683.046669.046846.054440.058331.061649.063685.066000.066446.071828.074387.074220.075444.075790.075424.074025.072827.071129.069438.067890.067263.073612.071227.085559.084180.083090.084268.083765.082554.0NANANA
us-gaap:OtherAssetsNoncurrent ████▇▇█▆▆▇▃▂▂▄▂▂▂▂▂▂▂▂▂▁▂▂▁▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁2442.02464.02528.02420.02372.02370.02426.02174.02111.02303.01344.01209.01188.01572.01107.01081.01076.01130.01160.01130.01086.01094.01063.0955.01020.01008.0888.01126.01173.01050.0943.0908.0891.0885.0882.0902.0889.0995.0972.0992.0968.0909.0905.0NANANA
us-gaap:EquitySecuritiesFvNi ▇▆▄▃▃▁█▇1802.01564.01256.0809.0971.0420.02111.01951.0NANA1462.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▂▂▁▁▁▁▁▁▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂▂▂▃▃▃▄▄▄▄▄▄▄▄▄█▇███▇3591.03779.02669.02217.02060.02900.03176.03148.03618.03815.03863.03887.03642.03824.04009.03378.03401.03494.03631.03686.03746.04088.04895.05173.05833.06706.07982.08692.09254.09604.09314.010333.010437.010421.010013.09982.09096.021550.019653.020835.021018.020203.018399.0NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▁▁█42.042.056.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DebtCurrent ▂▂▂▁▁▁▁▁▁▁▁▁▁▁▄▂▅▂▂▂▂▃▂▁▁▁▁▃▃▃▂▁▁▂▂▃▅█▂▂▂▂▂1205.0689.0619.0482.0146.0126.0105.0121.0114.0113.0112.095.089.0337.02575.01331.03798.01095.01089.01336.01331.02079.01427.0175.0138.0193.0182.01688.01664.01712.0589.0572.0554.01351.0955.02335.04179.07002.01013.0616.0606.0605.0936.0NANANA
us-gaap:LiabilitiesCurrent ▂▂▁▁▁▁▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▄▄▃▄▄▄▄▄▄█▆▆▆▆▆8150.07184.05366.04640.04105.06075.07043.05942.08996.07370.07395.07401.06638.07109.09397.07131.09926.07526.06909.07537.07348.08825.09256.08287.08734.09563.011537.014141.016191.017117.015129.016335.016715.018315.017443.017383.018360.036430.028068.028936.029344.029218.027419.0NANANA
us-gaap:OtherLiabilitiesCurrent ▂▂▂▂▂▄▄▁█▂▂▂▂▂▁▁▂▃▁▂▂▂▃▂▂▂▂▂▄▄▃▄▅▅▅▃▃▅▄▄▄▅▄1355.01168.01121.01111.01145.01852.02045.01030.03505.01402.01259.01180.01071.01137.01029.0851.01394.01679.0994.01299.01107.01379.01510.01381.01227.01204.01400.01393.01905.01821.01671.01841.02375.02453.02367.01551.01672.02427.02071.02018.02112.02333.02129.0NANANA
us-gaap:TaxesPayableCurrent ▂▂▁▁▁▂▂▂▂▃▂▃▂▂▂▂▂▂▁▁▁▂▁▁▂▂▂▃▄▅▄▅▄▆▅▄▄▇▆▇▇█▇1406.0959.0320.0339.0312.0853.01030.01077.01213.01539.01320.01582.01301.01341.01038.01005.0791.0756.0484.0394.0554.0701.0499.0659.0880.0864.01051.01655.02770.03485.02713.02911.02813.03658.03366.02837.02819.04751.04220.04573.04836.05445.04874.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee cop:AffiliatedCompaniesNANA18099.0NANANA22168.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebt █▇▄▄▃▁▃▃▃▂▁▂▂▄▇23376.022578.019106.018827.018307.015841.018108.018131.017770.017167.016147.016554.016581.018908.022435.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DebtAndCapitalLeaseObligations ██▂▂▁▁▁20000.020000.015369.015387.014998.014973.014895.0NANANA14968.0NANANA19703.0NANANA27275.0NANANA24880.0NANANA22565.0NANANA21662.0NANANA21725.0NANANA22623.0NANANA23592.0NANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations ▃▄▁▁▁▁▁▁▁▁▁▁▁▂▂▄▄▇▇███▆▇▇▅▅▄▄▄▅▅▅▄▄▃▃▅▅▅▅▅▅18805.019338.014750.014905.014852.014847.014790.014799.014809.014832.014856.014902.014885.016709.017128.019673.019670.025340.026186.027353.027346.027376.023453.024716.024787.022318.022383.019499.019570.019494.021073.021096.021167.020319.020770.018782.018829.021358.021610.022534.022590.022604.022656.0NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▆▁▁▂▃▅5331.04982.03747.03854.03901.04141.04634.0NANANA5021.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
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us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA155.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA116.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
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us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA55.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA200.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity NA43155.029849.030783.031493.031315.034981.035146.032976.032859.031939.031950.031042.030546.030607.030500.030286.035353.034974.036170.037544.039089.039762.044210.048620.048652.051911.055274.055315.053222.052090.051113.048508.048803.047987.047406.045971.066534.065224.065806.070059.069972.068562.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▃▃▁▁▁▁▂▂▂▂▁▁▁▁▁▁▁▂▂▂▂▃▃▄▄▄▅▅▅▅▅▅▄▄▄▄▄▇▇▇████▇▇44276.043155.029849.030783.031493.031387.035050.035239.033074.032981.032064.032079.031222.030718.030801.030712.030499.035601.035226.036456.037831.039407.040082.044555.048969.049008.052273.055661.055686.053621.052492.051537.048932.049240.048427.047877.046443.067043.065734.066326.070578.070521.069109.069917.065945.063417.0
us-gaap:CommonStockValue ██▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁21.021.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.018.017.017.017.017.017.0NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ██▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁60337.060278.047133.047113.047079.047027.046983.046954.046922.046877.046879.046858.046746.046642.046622.046595.046558.046510.046507.046480.046429.046365.046357.046311.046244.046136.046071.046000.045926.045754.045690.045637.045531.045425.045324.045130.045016.044936.044725.044610.044468.044314.044132.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▄▃▃▄▄▄▅▄▄▃▃▂▂▁▁▁▁▂▂▂▃▃▄▅▅▆▆▆▆▅▅▄▄▄▃▃▃█▇▇▆▅▅37116.035608.035213.036448.037351.037545.039742.039484.036769.035534.034010.032495.030967.029663.029391.028130.028033.031804.031548.031896.033248.034632.036414.040786.042779.043867.044504.045451.043653.042428.041160.039526.037899.036662.035338.034764.033756.051286.049194.046681.044964.042480.040397.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▂▂▂▁▁▁▂▁▁▁▁▂▁▂▁▂▁▁▁▂▂▂▁▁▃▂▃▅▆▆▆▆▆▇▇▇▇▇▆▆██▇-4920.0-5080.0-5218.0-5666.0-5825.0-6145.0-5357.0-5654.0-5827.0-5914.0-6063.0-5442.0-5637.0-5371.0-5518.0-5292.0-6342.0-5961.0-6193.0-5444.0-5371.0-5146.0-6247.0-6125.0-3641.0-4589.0-1902.0585.02498.01802.02002.02712.01840.03478.04087.04339.03877.03972.03086.03203.06125.05547.04773.0NANANA
us-gaap:TreasuryStockValue ███████▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▃▂▁▁48278.047672.047297.047130.047130.047130.046405.045656.044906.043656.042905.041979.041052.040406.039906.038951.037981.037018.036906.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036780.036845.036696.033678.031787.028671.024862.021713.020077.0NANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders NANA0.00.06.026.048.020.043.017.016.063.08.034.036.017.050.017.049.016.043.016.038.019.022.021.040.07.045.017.038.016.026.017.046.016.028.019.033.0129.0-47.0-12.0-182.0128.0-24.0-24.0
 us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterestNANA0.00.06.026.048.020.043.017.016.063.08.034.036.017.050.017.049.016.043.016.038.019.022.021.040.07.045.017.038.016.026.017.046.016.028.019.033.0129.0-47.0-12.0-182.0128.0-24.0-24.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▃▃▂▁▃▄▃▄▄▅▅▅▄▄▂▃▃▂▂▂▁▃▃▃▃▄▆▅█▅▅▅▆▅▅▃▆▇▇█▃█▆▅▄4251.02080.01672.0868.0157.02105.02982.02337.02891.02894.03783.03410.03342.02399.02481.01055.01751.01790.01443.01280.01259.0421.01596.01934.02172.01870.02597.04180.03622.06336.03911.03705.03741.04730.03870.03520.02350.04182.05812.05613.06274.01947.06191.04339.03475.03040.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▃▃▃▃▂▁▄▃▃▃▃▂▄▃▅█▃▄▄▂▂▃▂▂▂▂▁▁▁▅▂▂▂▂▂▂▂▄▂▂▂▃▆▆▂734.0-1215.0-543.0-1116.0-530.0-1932.0-3830.0150.0-1461.0-1477.0-178.0-1638.0-1949.0-78.0-469.02008.07197.0-974.053.0275.0-2122.0-2065.0-626.0-2249.0-2664.0-3116.0-3357.0-3811.0-4265.0-3698.02315.0-2718.0-3415.0-2433.0-2929.0-2773.0-2915.0-3010.01124.0-3245.0-2683.0-2211.0-1119.04101.03840.0-2157.0
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▄▅▄▄▄▄▃▄▄▄▂▂▃▂▁▄▃▄▄█▄▄▆▄▅▄▄▄▂▄▃▄▆▄▃▂▁▁▁▂▂▁▁▄-1203.0-1015.0-652.0-177.0-649.0-1230.0-1270.0-1132.0-1654.0-1173.0-1317.0-1263.0-3003.0-3776.0-2586.0-3827.0-4599.0-1344.0-1906.0-347.0-1120.04137.0-975.0-990.01555.0-1019.0542.0-973.0-789.0-1354.0-3873.0-1085.0-1845.0-330.01402.0-532.0-2081.0-3270.0-4687.0-4322.0-4235.0-3061.0-3492.0-4687.0-4066.0-574.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▇▃▄▃▂▂▁▅▃▄▆▄▁▂▃▃█▃3793.0-152.0519.0-394.0-993.0-1179.0-2096.01261.0-273.0319.02211.0483.0-1749.0-1330.0-586.0-623.04425.0-501.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▇▇▅▆▆▅▆▆▅▆▆▇▇▆▃▅▂▂▆▄▄▃▁▄▆▄▅██▇▇██▇██▇▇█▇█▆▆▅▄▆364.0203.0-406.0-108.0-93.0-227.0-140.0-83.0-220.0-1.0-115.0136.0197.065.0-911.0-222.0-1234.0-1314.0-69.0-695.0-630.0-827.0-1488.0-682.035.0-637.0-315.0391.0403.0230.0169.0458.0443.0241.0519.0431.0189.0258.0478.0293.0429.087.057.0-392.0-508.0-35.0
us-gaap:DepreciationDepletionAndAmortization ▅▅▃▂▁▂▃▃▃▃▄▃▃▂▄▃▄▆▆█▇▇█▇▇▆▇▆▆▅▅▅▅▅▄▄▄▅▅▅▆▆▇▇▇▇1867.01886.01541.01411.01158.01411.01488.01566.01490.01546.01612.01494.01438.01412.01633.01608.01625.01979.02061.02425.02329.02247.02382.02271.02329.02131.02271.02096.02070.01892.01893.01902.01832.01807.01632.01699.01626.01838.01919.01870.02075.02070.02216.02246.02280.02318.0
us-gaap:IncreaseDecreaseInAccountsPayable ▄▅▄▄▃▃▄▄▄▄▄▄▄▄▅▄▄▄▄▄▄▃▄▄▄▂▃▄▃▅▄▄▄▅▄▅▁▇▂▄▅▇█▅▃▅-101.0424.0334.0171.0-457.0-297.098.0-150.0-184.0-142.0-9.0239.0-101.0-181.0477.0-34.0-49.0-129.0-9.0-61.00.0-454.0-29.0-260.0-56.0-1302.0-596.0-258.0-282.0353.0-141.0-70.0-134.0528.0209.0842.0-1807.01859.0-1469.0203.0803.01753.02486.0507.0-502.0396.0
us-gaap:IncreaseDecreaseInInventories ▄▄▄▄▅▄▄▄▅▄▄▅▄▄▄▄▄▅▄▄▅▄▄▄▄▄▄▄▅▄▄▅▄▅▄▄▂▆▁▅▃█▁▅▄█38.051.0-49.047.0304.0-277.065.0-75.073.04.0-251.0144.033.0-12.040.012.0-73.076.0-22.0-45.084.0-61.0-7.0-117.035.0-77.031.059.076.027.0-23.0122.02.0177.0-207.028.0-1433.01402.0-2535.0298.0-988.02669.0-2535.0497.0-38.02439.0
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▁▂▄▅▇▇▅▆▇▆▅▃▄▅▃▄▅▄▄▅▃▃▄▆▅▁▁▄▂█-704.0-440.0-113.0-30.0393.0445.0-42.0224.0345.0149.025.0-359.0-121.034.0-385.0-162.04.0-79.0-90.0-46.0-374.0-416.0-83.0138.0-15.0-630.0-623.0-66.0-472.0595.0NANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▃▃▂▁▃▄▃▄▄▅▅▅▄▄▂▃▃▂▂▂▁▃▃▃▃▄▆▅█▅▅▅▆▅▅▃▆▇▇█▃█▆▅▄4251.02080.01672.0868.0157.02105.02982.02337.02891.02894.03783.03410.03342.02399.02481.01055.01751.01790.01443.01280.01259.0421.01596.01934.02172.01870.02597.04180.03622.06336.03911.03705.03741.04730.03870.03520.02350.04182.05812.05613.06274.01947.06191.04339.03475.03040.0
us-gaap:NetIncomeLoss ▆▅▃▄▄▃▅▇▆▆▆▆▆▅▆▅▁▅▄▃▃▃▁▃▄▄▄▇▆▆▆▆▆▆▅▆▆▇▇▇▇▇▆▇█▆2091.0982.0-772.0-450.0260.0-1739.0720.03056.01580.01833.01868.01861.01640.0888.01579.0420.0-3440.0586.0-35.0-1040.0-1071.0-1469.0-3450.0-1071.0-179.0272.0-39.02704.02081.02123.02487.02480.02050.02139.01426.01798.02267.02937.03390.02616.03402.03028.02041.03055.04164.02098.0
us-gaap:ProfitLoss ▆▅▃▄▄▃▅▇▆▆▆▆▆▅▆▅▁▅▄▃▃▃▁▃▄▄▄▇▆▆▆▆▆▆▅▆▆▇▇▇▇▇▆▇█▆2091.0982.0-772.0-450.0278.0-1711.0743.03071.01597.01846.01878.01873.01654.0900.01598.0436.0-3426.0599.0-19.0-1026.0-1058.0-1456.0-3437.0-1056.0-164.0286.0-24.02727.02098.02137.02503.02496.02063.02153.01441.01813.02289.02955.03410.02631.03419.03042.02053.03069.04183.02112.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▃▃▃▃▂▁▄▃▃▃▃▂▄▃▅█▃▄▄▂▂▃▂▂▂▂▁▁▁▅▂▂▂▂▂▂▂▄▂▂▂▃▆▆▂734.0-1215.0-543.0-1116.0-530.0-1932.0-3830.0150.0-1461.0-1477.0-178.0-1638.0-1949.0-78.0-469.02008.07197.0-974.053.0275.0-2122.0-2065.0-626.0-2249.0-2664.0-3116.0-3357.0-3811.0-4265.0-3698.02315.0-2718.0-3415.0-2433.0-2929.0-2773.0-2915.0-3010.01124.0-3245.0-2683.0-2211.0-1119.04101.03840.0-2157.0
us-gaap:PaymentsToAcquireProductiveAssets ▂▂▁▁▁▂▂▃▃▂▂▂▃▂▂▁▁▁▁▁▁▃▃▃▄▆██▇▇1265.01200.01058.01132.0876.01649.01595.01675.01729.01637.01617.01599.01999.01535.01517.01088.01020.0966.0999.0916.01133.01821.02137.02174.02407.03332.04356.04588.04246.03895.0NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▄▅▄▄▄▄▃▄▄▄▂▂▃▂▁▄▃▄▄█▄▄▆▄▅▄▄▄▂▄▃▄▆▄▃▂▁▁▁▂▂▁▁▄-1203.0-1015.0-652.0-177.0-649.0-1230.0-1270.0-1132.0-1654.0-1173.0-1317.0-1263.0-3003.0-3776.0-2586.0-3827.0-4599.0-1344.0-1906.0-347.0-1120.04137.0-975.0-990.01555.0-1019.0542.0-973.0-789.0-1354.0-3873.0-1085.0-1845.0-330.01402.0-532.0-2081.0-3270.0-4687.0-4322.0-4235.0-3061.0-3492.0-4687.0-4066.0-574.0
us-gaap:PaymentsOfDividendsCommonStock ▄▄▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██████▇▇▇▇▇▇▇▆▇▇▇███▆▇▇▆583.0588.0464.0454.0455.0458.0463.0341.0346.0350.0354.0334.0337.0338.0319.0324.0331.0331.0313.0314.0313.0313.0923.0922.0909.0910.0907.0907.0856.0855.0853.0852.0814.0815.0809.0808.0818.0843.0871.0900.0917.0944.0799.0816.0816.0744.0
us-gaap:PaymentsForRepurchaseOfCommonStock ▄▃▂▁▁▅▅▅█▅▆▆▅▄▆▆▆▂▂606.0375.0166.00.00.0726.0749.0749.01250.0752.0926.0927.0646.0500.0955.0970.0963.0112.0126.0NANA0.0NANANANANANANANANANANANA0.0149.03050.01899.03139.03199.03149.01636.02608.0868.0NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2121181818181818181818181818181818181818181818181818181818181818181818181818171717171717
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Outstanding

us-gaap:SharesOutstanding dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:SharesOutstanding

cop:ConchoResourcesInc, cop:ConchoResourcesInc


Shares
Period End2021-01-15
Value195
Percentage of SharesOutstanding100.0

cop:ConchoResourcesInc, cop:ConchoResourcesIncorporated


Shares
Period End2021-01-15
Value195
Percentage of SharesOutstanding100.0

us-gaap:SharesOutstanding us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Shares
Period End2021-01-15
Value195
Percentage of SharesOutstanding100.0

Shares Issued

us-gaap:SharesIssued

us-gaap:SharesIssued


Shares
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value179817951791178517821778
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2087179817981798179817951795179417941791179017881787178517851784178417821781178017801778177617751775177317731771176917681767176517641762175717541753174917461745174417401733
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesIssued dei:LegalEntity, us-gaap:BusinessAcquisition

cop:ConchoResourcesInc, cop:ConchoResourcesInc


Common
Period End2021-01-15
Value194
Percentage of CommonStockSharesIssued0.0

cop:ConchoResourcesInc, cop:ConchoResourcesIncorporated


Common
Period End2021-01-15
Value194
Percentage of CommonStockSharesIssued0.0

us-gaap:CommonStockSharesIssued us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Common
Period End2021-01-15
Value194
Percentage of CommonStockSharesIssued0.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:CommonStockSharesOutstanding

cop:ConchoResourcesInc, cop:ConchoResourcesInc


Common
Period End2021-01-15
Value194
Percentage of CommonStockSharesOutstanding100.0

cop:ConchoResourcesInc, cop:ConchoResourcesIncorporated


Common
Period End2021-01-15
Value194
Percentage of CommonStockSharesOutstanding100.0

us-gaap:CommonStockSharesOutstanding us-gaap:AwardType, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:RestrictedStock, cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Common
Period End2021-01-15
Value1.599
Percentage of CommonStockSharesOutstanding0.8

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value13531.302691107710771.0845611.113251.1312421.1465151.1726941.1811671.186454121512361.2487221.2459611.2448921.2445571.2421251.2410261.2455311.2474361.2451551.2426671.2403651.2371571.2359071.22934312581293136914121445149315011503
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value13481.300375107710761.0845611.1085551.1259951.1394631.1630331.1723781.179792121212361.243281.2459611.2448921.2445571.2421251.2410261.2407911.2382341.2360571.2349681.2310541.2297731.2292321.22046212481283135713991432148114891492
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.550.75-0.72-0.420.24-1.60.682.761.41.611.621.61.40.751.280.35-2.780.47-0.03-0.84-0.86-1.18-2.78-0.87-0.150.22-0.042.181.681.722.022.011.661.741.171.471.822.292.561.932.432.111.422.062.791.41
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.550.75-0.420.24-1.62.741.41.61.591.390.751.280.34-2.780.47-0.03-0.84-0.86-1.18-2.78-0.87-0.150.22-0.032.171.671.712.02.01.651.731.171.461.82.272.551.912.412.091.412.052.771.4
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value22511120-324.0-291.0580-2527.0101732291667202212472056137497713531470-3821.0818-784.0-1113.0-1296.0-368.0-3572.0-3555.0769-2415.0-2526.07912777192317773352412153011742260179838233273-306.0398038022409557927702308
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.611.40.0-6.621.1-41.00.041.621.022.10.021.816.211.10.022.0-56.310.90.0-17.1-23.2-7.30.0-47.48.9-30.20.06.118.912.00.021.72.910.40.015.011.923.80.0-1.822.56.70.011.86.15.1

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.018282315171310.0121412191614131614131313151514152317141616131415152218201517-14.0121419-14.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.70.50.00.20.20.10.00.10.20.10.00.20.20.20.00.20.20.30.00.20.20.20.00.20.10.10.00.10.10.10.00.10.10.10.00.10.1-0.00.00.00.0-0.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value22511120-324.0-291.0598-2499.0104032441684203512572068138898913721486-3807.0831-768.0-1099.0-1283.0-355.0-3559.0-3540.0784-2401.0-2511.08142794193717933368425154411892275182038413293-291.0399738162421559327892322
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.611.40.0-6.621.8-40.60.041.821.222.20.021.916.311.20.022.2-56.111.10.0-16.9-23.0-7.10.0-47.29.1-30.00.06.319.012.10.021.83.010.50.015.112.023.90.0-1.722.66.80.011.86.15.2

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2998448324481839113026612783271026743675398635303064371434352926
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.445.60.041.941.143.20.034.933.640.20.037.436.042.20.043.8

Disposal Group Not Discontinued Operation Gain Loss On Disposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:OperatingSegments, cop:BarossaProject, cop:AsiaPacificOperatingSegment


Disposal
Period End2021-03-31
Value200
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:BarossaProject cop:AsiaPacificOperatingSegment0.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

cop:FosterCreekChristinaLakeFcclAndWesternCanadaGasProperties


Disposal
Period End2021-06-30
Value68
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:FosterCreekChristinaLakeFcclAndWesternCanadaGasProperties0.0

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value30801714-1086.0-512.021-1563.0128634932058268726722906261917761325653-4361.0-232.0-8.0-1654.0-1644.0-2224.0-5051.0-1741.0-91.0-356.0255334603698440536963787359139454265
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.217.40.0-11.70.8-25.40.045.025.929.40.030.830.820.20.09.8-64.3-3.10.0-25.4-29.5-44.30.0-23.2-1.1-4.419.823.523.028.526.125.823.826.026.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value989732-314.0-62.0-257.01485434224618417941033965876-273.0217-935.0-831.011-628.0-586.0-768.0-1614.0-685.073-642.0-297.0904139515811050196616301763143719452334252024232549277327542239220520111878
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.37.40.0-1.4-9.32.40.05.45.89.20.010.911.310.00.03.2-13.8-11.10.0-9.6-10.5-15.30.0-9.10.8-8.00.07.09.59.90.012.711.512.00.012.915.415.70.015.315.74.90.04.74.44.2

us-gaap:IncomeTaxExpenseBenefit us-gaap:BusinessAcquisition

cop:ConchoResourcesIncorporated


Income
Period End2021-02-08
Value75
Percentage of IncomeTaxExpenseBenefit0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:ConchoResourcesIncorporated0.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value545310242296465695638872700104962013075215942371871502127-499.0133147204425-253.084410381654667860118916621199217416983234146228582251273027222452209723291596
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.50.01.010.87.60.08.211.07.70.06.615.45.90.03.52.82.00.00.4-9.02.70.02.74.9-3.20.08.011.34.20.07.711.88.20.011.321.39.10.013.515.54.80.04.45.13.6

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value220226202200202202196184165233188186177184226251306315317335312281268240210202173149155171192151139130161161197209228235247262273264349301
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.30.04.67.33.30.02.42.12.50.02.02.12.10.03.84.54.20.05.15.65.60.03.22.42.50.01.21.11.10.01.01.00.90.01.11.31.30.01.41.40.50.00.60.80.7

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value23123319419419720019620021519918817940522024524234932729732828224428723420219717818011219911818910215712821392291184253209286214336338322
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.42.40.04.47.23.20.02.62.72.20.01.94.82.50.03.65.14.30.05.05.14.90.03.12.32.50.01.40.81.20.01.20.71.10.01.40.61.80.01.51.20.50.00.70.70.7

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2091982-772.0-450.0260-1739.07203056158018331868186116408881579420-3440.0586-35.0-1040.0-1071.0-1469.0-3450.0-1071.0-179.0272-39.02704208121232487248020502139142617982267293733902616340230282041305541642098
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.910.00.0-10.39.5-28.20.039.419.920.00.019.719.310.10.06.3-50.77.80.0-16.0-19.2-29.30.0-14.3-2.13.40.020.914.213.20.016.014.514.60.011.914.918.30.015.719.35.40.06.59.14.7

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CorporateNonSegment, us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value66-121.0-390.0185-1775.0-14.0-193.0271-247.028-541.0-327.0-424.0-348.0
Percentage of NetIncomeLoss3.2-12.386.771.2102.1-0.5-12.214.8-13.31.7-60.9-77.912.3-59.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-1.2-8.96.7-28.8-0.2-2.43.0-2.60.3-6.1-4.9-6.3-4.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment us-gaap:CorporateAndOther1650.0-189.10.09250.0-13653.8-19.4-4825.0193.6-316.735.0-13525.0-760.5-2650.0-994.3

us-gaap:OperatingSegments, cop:AlaskaSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value371159-643.0-16.0-141.0813143064623844454274185241175103199-11.0
Percentage of NetIncomeLoss17.716.283.33.6-54.2-4.743.610.029.220.923.822.925.559.074.424.5-5.8-1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.91.60.0-0.4-5.11.30.03.95.84.20.04.54.96.00.01.52.9-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:AlaskaSegment26.214.00.0-1.9-32.27.30.023.632.427.30.028.629.837.80.011.118.6-1.1

us-gaap:OperatingSegments, cop:AsiaPacificOperatingSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value175317648272
Percentage of NetIncomeLoss8.432.3249.2-15.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.83.223.64.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:AsiaPacificOperatingSegment27.854.9144.027.1

us-gaap:OperatingSegments, cop:CanadaOperatingSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value10210.0-86.0-109.0
Percentage of NetIncomeLoss4.91.0-33.16.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.10.1-3.1-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:CanadaOperatingSegment22.71.8-52.1-32.7

us-gaap:OperatingSegments, cop:EuropeMiddleEastAndNorthAfrica


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value20715392252012171
Percentage of NetIncomeLoss9.915.6-20.49.6-11.671.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.62.10.93.328.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:EuropeMiddleEastAndNorthAfrica17.815.621.38.733.5177.2

us-gaap:OperatingSegments, cop:LowerFortyEight


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1175468-78.0-365.0-437.026206193513410308-97.0-2536.0-362.0
Percentage of NetIncomeLoss56.247.717.3-140.425.10.913.010.527.625.034.7-23.173.7-61.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.34.8-1.8-13.3-7.10.32.62.15.44.83.5-1.5-37.4-4.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:LowerFortyEight20.07.2-3.4-26.0-14.10.75.44.711.310.67.8-3.1-82.1-11.2

us-gaap:OperatingSegments, cop:OtherInternational


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-5.0-4.0-8.0-6.0287381131316-5.0-44.0-20.0-9.0-48.0
Percentage of NetIncomeLoss-0.2-0.41.8-2.3-1.62.45.17.117.0-0.3-5.0-4.80.3-8.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.0-0.2-0.20.50.91.01.43.3-0.1-0.5-0.3-0.1-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:OtherInternational-250.0-400.0-800.0-600.0933.30.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, country:CA


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-75.0-86.0-109.0511001223433-65.02801379948
Percentage of NetIncomeLoss16.7-33.16.31.76.36.71.82.0-7.366.7-40.1161.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-3.1-1.80.71.31.30.40.4-0.74.220.312.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:CA-22.9-52.1-32.714.226.221.38.06.3-10.251.5197.3120.9

us-gaap:OperatingSegments, srt:AsiaPacific


Net
Period End2020-09-302019-09-30
Value25443
Percentage of NetIncomeLoss-5.614.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.65.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:AsiaPacific5.240.8

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.018282315171310.01214121916141316141313131515141523171416161314151522182015171412141914
Percentage of NetIncomeLossAttributableToNoncontrollingInterest0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.70.50.00.20.20.10.00.10.20.10.00.20.20.20.00.20.20.30.00.20.20.20.00.20.10.10.00.10.10.10.00.10.10.10.00.10.10.00.00.00.00.0

Operating Costs And Expenses

us-gaap:OperatingCostsAndExpenses

us-gaap:OperatingCostsAndExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value13791383116196310471173130213311418127113621367131311711324122413271298134215261445135415821834179818022943204120301895
Percentage of OperatingCostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.414.10.022.038.119.00.017.217.813.90.014.515.413.30.018.319.617.30.023.425.927.00.024.420.822.50.015.813.811.8

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value9669510190309-797.020424570176-420.059-359.078-134.050927184-719.0-82.0-224.01183-712.0-2519.0787-2719.0-1986.0-1932.0677-226.0-989.0621-1674.0-644.0-188.0612-500.0834619-2970.0540
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.70.04.311.2-12.90.03.20.91.90.00.6-4.20.90.07.60.42.40.0-1.3-4.023.60.0-33.69.1-34.00.0-15.04.6-1.40.04.0-11.8-4.40.04.1-3.35.20.0-17.83.1

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value160138448159320-788.029717387189-621.0195-266.089-226.01050-381.0232-749.0-73.0-225.01101-122.0-2484.0948-2687.0-2487.0-1913.0696-200.0-710.0872-1638.0-609.0-252.0462-469.0886-117.0-2922.0578
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.40.03.611.6-12.80.02.21.12.10.02.1-3.11.00.015.7-5.63.10.0-1.1-4.022.00.0-33.110.9-33.60.0-14.84.7-1.20.05.6-11.6-4.20.03.1-3.15.50.0-17.53.3

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312012-12-312012-09-30
Value160138448159320-788.029717387189-621.0195-266.089-252.0462
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.40.03.611.6-12.80.02.21.12.10.02.1-3.11.00.03.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-37.0378474-38.0594-1539.0222262172702-500.0309416-52.0386654731
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.43.80.0-0.921.6-25.00.03.42.27.70.03.34.9-0.60.01.00.70.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2091982-772.0-450.0278-1711.07433071159718461878187316549001598436-3426.0599-19.0-1026.0-1058.0-1456.0-3437.0-1056.0-164.0286-24.02727209821372503249620632153144118132289295534102631341930422053306941832112
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.910.00.0-10.310.1-27.80.039.620.120.20.019.819.410.20.06.5-50.58.00.0-15.7-19.0-29.00.0-14.1-1.93.60.021.114.313.30.016.114.614.70.012.015.118.40.015.819.45.40.06.59.24.7

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.018282315171310.01214121916141316141313131515141523171416161314151522182015171412141914
Percentage of ProfitLoss-0.0-0.06.5-1.63.10.51.10.70.50.60.81.31.23.7-0.42.2-84.2-1.4-1.2-0.9-0.4-1.4-9.14.9-62.50.80.80.70.60.60.60.71.00.81.00.60.60.60.50.50.60.50.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.70.50.00.20.20.10.00.10.20.10.00.20.20.20.00.20.20.30.00.20.20.20.00.20.10.10.00.10.10.10.00.10.10.10.00.10.10.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312012-12-312012-09-30
Value2091982-772.0-450.0260-1739.072030561580183318681861164088814261798
Percentage of ProfitLoss100.0100.0100.0100.093.5101.696.999.598.999.399.599.499.298.799.099.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.910.00.0-10.39.5-28.20.039.419.920.00.019.719.310.10.011.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9556982654914386274961587708775679539150966694498504879881196688678175186587651655755015676675078660800211851129171470116048139851547014142146511527915089151661608314903166951766856530-74380.0472084568644821
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Revenue
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302018-09-302018-06-302017-09-302017-06-30
Value955643862749775679539449850466886781
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CorporateNonSegment, us-gaap:CorporateAndOther


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value4.0640.02.013724.014078804.0431635
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.70.00.10.20.90.11.50.80.90.00.60.20.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.70.00.10.20.90.11.50.80.90.00.60.20.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment us-gaap:CorporateAndOther100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, cop:AlaskaSegment


Revenue
Period End2020-12-312020-09-302020-06-302019-06-30
Value0.0-30.0190.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.70.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.70.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination cop:AlaskaSegment0.0100.0100.00.0

us-gaap:IntersegmentElimination, cop:CanadaOperatingSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value-352.0-305.00.0-180.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.7-3.10.0-2.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.7-3.10.0-2.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination cop:CanadaOperatingSegment100.0100.00.0100.0

us-gaap:IntersegmentElimination, cop:LowerFortyEight


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-2.0-2.0-9.0-28.0-10.0-10.0-11.0-12.0-14.0-1.0-3.0-2.0-2.0-3.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.2-1.0-0.2-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.2-1.0-0.2-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination cop:LowerFortyEight100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, country:CA


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-20.00.0-180.0-273.0-335.0-250.0-308.0-290.0-255.0-155.0-89.0-86.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.50.0-2.9-3.5-4.2-2.7-3.3-3.4-2.9-2.3-1.3-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.50.0-2.9-3.5-4.2-2.7-3.3-3.4-2.9-2.3-1.3-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination country:CA100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AlaskaSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value141811331012834438111313541296142614071459149314031385121493210711007
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.811.518.419.015.918.117.616.717.915.415.115.816.515.715.013.915.813.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.811.518.419.015.918.117.616.717.915.415.115.816.515.715.013.915.813.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:AlaskaSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AsiaPacificOperatingSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value6305774501003
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.65.916.416.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.65.916.416.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:AsiaPacificOperatingSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:CanadaOperatingSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value450562165333
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.75.76.05.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.75.76.05.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:CanadaOperatingSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:EuropeMiddleEastAndNorthAfrica


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value11659784322886001225
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.210.09.810.59.715.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.210.09.810.59.715.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:EuropeMiddleEastAndNorthAfrica100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:LowerFortyEight


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value58876511231414053093371837984141452938513949310030883227
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax61.666.352.851.150.247.947.845.347.945.344.946.445.542.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax61.666.352.851.150.247.947.845.347.945.344.946.445.542.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:LowerFortyEight100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:OtherInternational


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-30
Value2.01.01.01.03.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:OtherInternational100.0100.0100.0100.0100.00.0

us-gaap:OperatingSegments, country:CA


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value328165333360382573427520636544699784
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.56.05.44.64.86.34.56.17.28.110.310.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.56.05.44.64.86.34.56.17.28.110.310.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, srt:AsiaPacific


Revenue
Period End2020-09-302019-09-30
Value4771085
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.914.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.914.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:AsiaPacific100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Energy

cop:OtherProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value62258349942725990845550.001189101213281204131811691321106510078801018
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.55.99.19.79.414.759.10.012.714.512.513.913.715.013.115.113.013.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.55.99.19.79.414.759.10.012.714.512.513.913.715.013.115.113.013.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:OtherProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:CrudeOil


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value579744952755232112163444184810.00461248134581195700.005277
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax60.745.750.252.944.255.9239.80.060.550.1202.50.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax60.745.750.252.944.255.9239.80.060.550.1202.50.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:CrudeOil100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MajorCustomers

cop:CustomersWithinTheScopeOfAscTopic606


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-03-31
Value775371613078191949116240663370596545
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax81.172.970.269.879.780.583.477.174.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax81.172.970.269.879.780.583.477.174.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:CustomersWithinTheScopeOfAscTopic606100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

cop:CrudeOilProductLine


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value178124177100269218526616518826926729028658171218141
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.91.33.22.30.91.52.43.42.12.12.82.83.43.30.72.63.21.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.91.33.22.30.91.52.43.42.12.12.82.83.43.30.72.63.21.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:CrudeOilProductLine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:FinancialDerivativeContracts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value49-309.0-8.028-26.0-49.0-43.0-13.0-51.010.0616.042-8.0-16.02.0-9.0-65.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.5-3.1-0.10.6-0.9-0.8-0.6-0.2-0.60.10.60.10.5-0.1-0.20.0-0.1-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.5-3.1-0.10.6-0.9-0.8-0.6-0.2-0.60.10.60.10.5-0.1-0.20.0-0.1-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:FinancialDerivativeContracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:NaturalGasProductLine


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value15042727144410427631090129111591095176819591522136318901941181118652194
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.727.826.323.827.817.716.714.913.819.320.316.116.021.523.927.127.529.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.727.826.323.827.817.716.714.913.819.320.316.116.021.523.927.127.529.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:NaturalGasProductLine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:OtherProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7212312413867114101104111125113108668539687390
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.32.33.12.41.91.31.31.41.41.21.10.81.00.51.01.11.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.32.33.12.41.91.31.31.41.41.21.10.81.00.51.01.11.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:OtherProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:PhysicalGasContracts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value17542974174512808561296157715291371208123411897171922612038205021562425
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.430.331.829.231.121.020.519.717.222.724.220.120.225.725.130.731.832.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.430.331.829.231.121.020.519.717.222.724.220.120.225.725.130.731.832.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:PhysicalGasContracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

cop:PhysicalGasContracts, cop:CanadaSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value207303275152121179264861002412558796191184161240279
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.23.15.03.54.42.93.41.11.32.62.60.91.12.22.32.43.53.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.23.15.03.54.42.93.41.11.32.62.60.91.12.22.32.43.53.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:PhysicalGasContracts cop:CanadaSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:PhysicalGasContracts, cop:EuropeMiddleEastAndNorthAfrica


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value20220511037141344
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.12.12.51.32.34.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.12.12.51.32.34.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:PhysicalGasContracts cop:EuropeMiddleEastAndNorthAfrica100.0100.0100.0100.0100.0100.0

cop:PhysicalGasContracts, cop:LowerFortyEightSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1345246612741018698976116610991111161318111534130017131468156315441727
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.125.123.223.225.415.815.114.214.017.618.716.215.319.518.123.422.823.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.125.123.223.225.415.815.114.214.017.618.716.215.319.518.123.422.823.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:PhysicalGasContracts cop:LowerFortyEightSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReserveQuantitiesByTypeOfReserve

srt:NaturalGasLiquidsReserves


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value32523716412984151207156213238267351265231357238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.42.43.02.93.12.52.72.02.72.62.83.73.12.64.43.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.42.43.02.93.12.52.72.02.72.62.83.73.12.64.43.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NaturalGasLiquidsReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NaturalGasReserves


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2812451120731509119016551998179919153003312725032294279628242496
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.445.937.834.443.326.925.923.224.132.832.426.527.031.834.837.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.445.937.834.443.326.925.923.224.132.832.426.527.031.834.837.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NaturalGasReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

cop:AlaskaSegment


Revenue
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value14181012864419135412961426
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.818.419.715.217.616.717.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.818.419.715.217.616.717.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:AlaskaSegment100.0100.0100.0100.0100.0100.0100.0

cop:CanadaOperatingSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value802867165513
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.48.86.08.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.48.86.08.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:CanadaOperatingSegment100.0100.0100.0100.0

cop:LowerFortyEight


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value58896513232314333103372838094153454338523952310230903230
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax61.666.353.052.150.448.147.945.448.145.344.946.445.643.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax61.666.353.052.150.448.147.945.448.145.344.946.445.643.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:LowerFortyEight100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:CA


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value348165513633717823735810891699788870
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.96.08.38.29.09.07.89.510.110.511.611.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.96.08.38.29.09.07.89.510.110.511.611.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

cop:Libya


Revenue
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302018-09-302018-06-302017-09-302017-06-30
Value2906.00.028826726466891439
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.00.10.03.73.42.87.91.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.00.10.03.73.42.87.91.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:Libya100.0100.00.0100.0100.0100.0100.0100.0100.0

cop:Libyamember


Revenue
Period End2021-03-312020-03-312019-03-312018-03-31
Value23044254276
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.30.72.83.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.30.72.83.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax cop:Libyamember100.0100.0100.0100.0

country:AU


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.0168437365412311559540515303440398323344383
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.06.17.14.75.33.96.15.65.53.65.04.94.85.15.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.06.17.14.75.33.96.15.65.53.65.04.94.85.15.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:AU0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:CA


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value450562435328165333454360382573441427520636592544699784681542361390469500574593914958102315141171112912501097130311719971082140313651276
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.75.77.97.56.05.45.94.64.86.34.64.56.17.27.38.110.310.410.38.36.57.86.96.76.67.47.77.47.09.48.47.38.87.58.57.86.66.79.48.27.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.75.77.97.56.05.45.94.64.86.34.64.56.17.27.38.110.310.410.38.36.57.86.96.76.67.47.77.47.09.48.47.38.87.58.57.86.66.79.48.27.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:CN


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1711558616167146179191159243220262136218201148158205
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.61.63.72.42.42.32.52.02.72.32.81.62.52.52.22.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.61.63.72.42.42.32.52.02.72.32.81.62.52.52.22.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CN100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:GB


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2573361126846110155305485704695574715669750437479622
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.73.42.01.61.71.82.03.96.17.77.26.18.47.69.26.57.18.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.73.42.01.61.71.82.03.96.17.77.26.18.47.69.26.57.18.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:GB100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:ID


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value207196186167132204221223226205224234213215203191164199
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.03.43.84.83.32.92.92.82.22.32.52.52.42.52.92.42.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.03.43.84.83.32.92.92.82.22.32.52.52.42.52.92.42.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:ID100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:MY


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2522261631488321630225833433630733926234433529793237
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.62.33.03.43.03.53.93.34.23.73.23.63.13.94.14.41.43.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.62.33.03.43.03.53.93.34.23.73.23.63.13.94.14.41.43.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:MY100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:NO


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value618412380358242446568632561588774734356663597583234689
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.54.26.98.28.87.27.48.17.16.48.07.84.27.57.48.73.59.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.54.26.98.28.87.27.48.17.16.48.07.84.27.57.48.73.59.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:NO100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value730877074021314818444217516350855225568661236025525653364764403841624240
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.578.473.271.867.168.567.065.665.762.163.363.861.860.758.760.461.456.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.578.473.271.867.168.567.065.665.762.163.363.861.860.758.760.461.456.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NonUs


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value3.02.02.02.05.02.03.02.07575277369.0159
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.10.10.00.00.00.80.93.10.50.12.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.10.10.00.00.00.80.93.10.50.12.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NonUs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1021110559604943804016481181401009383801005710361101659240896187367195888277717254651655755015676675078660800211851129171470116048139851547014142146511527915089151661608314903166951766856530-74380.0472084568644821
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax106.9107.5110.299.9146.178.1105.6130.1105.4109.9107.2107.6108.7101.9107.6107.6131.0103.4110.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11731118196156-3.0187871291536511911899138132134157167203167186283293218159132203218182247249193165214330235685599466514499630493438444
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.23.23.32.25.7-0.02.41.11.61.70.71.31.41.11.72.02.02.12.53.13.03.74.23.92.52.01.11.61.51.11.81.61.41.11.42.21.54.34.02.82.90.9-0.81.01.01.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value8540383693626186315763046650337051470340712617149869980705566893670727733627486178004879738977294284960549983497484105949112003110042116539118986121648120025118057119760116947117780117144115369114008162881153230154689160068159643156314152138142865
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value8987111648573114564962
Percentage of Assets14.415.812.315.65.5
Percentage of Assets14.415.812.315.65.5
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CorporateNonSegment, us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value9764898789519349111641090995189223857377897211834211456
Percentage of Assets11.714.414.214.415.815.513.412.912.311.010.511.815.6
Percentage of Assets11.714.414.214.415.815.513.412.912.311.010.511.815.6
Percentage of Assets us-gaap:CorporateNonSegment us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AlaskaSegment


Assetsus-gaap:
Period End2021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-12-182018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value14571146231612115603154531551315392150661464814648126881275812610121081231412555
Percentage of Assets17.423.425.624.021.922.121.621.120.90.018.018.517.816.513.712.9
Percentage of Assets17.423.425.624.021.922.121.621.120.90.018.018.517.816.513.712.9
Percentage of Assets us-gaap:OperatingSegments cop:AlaskaSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AsiaPacificAndMiddleEastSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-12-182017-12-312016-12-312015-12-31
Value11231147161615116151169852045122318
Percentage of Assets17.920.923.10.023.222.822.9
Percentage of Assets17.920.923.10.023.222.822.9
Percentage of Assets us-gaap:OperatingSegments cop:AsiaPacificAndMiddleEastSegment100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AsiaPacificOperatingSegment


Assetsus-gaap:
Period End2021-03-312020-12-31
Value1104111231
Percentage of Assets13.217.9
Percentage of Assets13.217.9
Percentage of Assets us-gaap:OperatingSegments cop:AsiaPacificOperatingSegment100.0100.0

us-gaap:OperatingSegments, cop:CanadaOperatingSegment


Assetsus-gaap:
Period End2021-03-312020-12-31
Value69256863
Percentage of Assets8.311.0
Percentage of Assets8.311.0
Percentage of Assets us-gaap:OperatingSegments cop:CanadaOperatingSegment100.0100.0

us-gaap:OperatingSegments, cop:CanadaSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-12-182017-12-312016-12-312015-12-31
Value686363505748574862141754817221
Percentage of Assets11.09.08.20.08.519.517.7
Percentage of Assets11.09.08.20.08.519.517.7
Percentage of Assets us-gaap:OperatingSegments cop:CanadaSegment100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:EuropeAndNorthAfricaSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-12-182017-12-312016-12-312015-12-31
Value8756812198839883118701172713703
Percentage of Assets14.011.514.10.016.213.114.1
Percentage of Assets14.011.514.10.016.213.114.1
Percentage of Assets us-gaap:OperatingSegments cop:EuropeAndNorthAfricaSegment100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:EuropeMiddleEastAndNorthAfrica


Assetsus-gaap:
Period End2021-03-312020-12-31
Value86898756
Percentage of Assets10.414.0
Percentage of Assets10.414.0
Percentage of Assets us-gaap:OperatingSegments cop:EuropeMiddleEastAndNorthAfrica100.0100.0

us-gaap:OperatingSegments, cop:LowerFortyEight


Assetsus-gaap:
Period End2021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value32474119321215812717144251460114792147201488815308148901458414632
Percentage of Assets38.819.119.319.620.520.820.820.621.321.721.620.619.9
Percentage of Assets38.819.119.319.620.520.820.820.621.321.721.620.619.9
Percentage of Assets us-gaap:OperatingSegments cop:LowerFortyEight100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:LowerFortyEightSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-12-182017-12-312016-12-312015-12-31
Value11932144251488814888146322267326932
Percentage of Assets19.120.521.30.019.925.327.6
Percentage of Assets19.120.521.30.019.925.327.6
Percentage of Assets us-gaap:OperatingSegments cop:LowerFortyEightSegment100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:OtherInternational


Assetsus-gaap:
Period End2021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value22922629928928589888789315629797
Percentage of Assets0.30.40.50.40.40.10.10.10.10.40.10.10.1
Percentage of Assets0.30.40.50.40.40.10.10.10.10.40.10.10.1
Percentage of Assets us-gaap:OperatingSegments cop:OtherInternational100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:OtherInternationalSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-12-182017-12-312016-12-312015-12-31
Value22628589899797282
Percentage of Assets0.40.40.10.00.10.10.3
Percentage of Assets0.40.40.10.00.10.10.3
Percentage of Assets us-gaap:OperatingSegments cop:OtherInternationalSegment100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:CorporateNonSegment, us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2021-06-302020-12-312020-09-302019-12-31
Value118918987839111164
Percentage of Assets13.914.413.315.8
Percentage of Assets13.914.413.315.8
Percentage of Assets us-gaap:CorporateNonSegment us-gaap:CorporateAndOther100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AlaskaSegment


Assetsus-gaap:
Period End2021-06-302020-12-312020-09-302019-12-31
Value14636146231591015453
Percentage of Assets17.123.425.221.9
Percentage of Assets17.123.425.221.9
Percentage of Assets us-gaap:OperatingSegments cop:AlaskaSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:AsiaPacificOperatingSegment


Assetsus-gaap:
Period End2021-06-302020-12-31
Value1072111231
Percentage of Assets12.617.9
Percentage of Assets12.617.9
Percentage of Assets us-gaap:OperatingSegments cop:AsiaPacificOperatingSegment100.0100.0

us-gaap:OperatingSegments, cop:CanadaOperatingSegment


Assetsus-gaap:
Period End2021-06-302020-12-31
Value69916863
Percentage of Assets8.211.0
Percentage of Assets8.211.0
Percentage of Assets us-gaap:OperatingSegments cop:CanadaOperatingSegment100.0100.0

us-gaap:OperatingSegments, cop:EuropeMiddleEastAndNorthAfrica


Assetsus-gaap:
Period End2021-06-302020-12-312020-09-302019-12-31
Value8616875684209269
Percentage of Assets10.114.013.313.1
Percentage of Assets10.114.013.313.1
Percentage of Assets us-gaap:OperatingSegments cop:EuropeMiddleEastAndNorthAfrica100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:LowerFortyEight


Assetsus-gaap:
Period End2021-06-302020-12-312020-09-302019-12-31
Value32309119321219614425
Percentage of Assets37.819.119.320.5
Percentage of Assets37.819.119.320.5
Percentage of Assets us-gaap:OperatingSegments cop:LowerFortyEight100.0100.0100.0100.0

us-gaap:OperatingSegments, cop:OtherInternational


Assetsus-gaap:
Period End2021-06-302020-12-312020-09-302019-12-31
Value239226300285
Percentage of Assets0.30.40.50.4
Percentage of Assets0.30.40.50.4
Percentage of Assets us-gaap:OperatingSegments cop:OtherInternational100.0100.0100.0100.0

us-gaap:OperatingSegments, country:CA


Assetsus-gaap:
Period End2020-09-302019-12-31
Value65816350
Percentage of Assets10.49.0
Percentage of Assets10.49.0
Percentage of Assets us-gaap:OperatingSegments country:CA100.0100.0

us-gaap:OperatingSegments, srt:AsiaPacific


Assetsus-gaap:
Period End2020-09-302019-12-31
Value1135913568
Percentage of Assets18.019.2
Percentage of Assets18.019.2
Percentage of Assets us-gaap:OperatingSegments srt:AsiaPacific100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4112740538327693237431553336463546435101381873851737916384773771440009425614414947505523725454657828582236042757402613946303461034642666332565962664046556568223680156854068717674926756595838874968836389490891228720589525
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.248.452.351.350.051.750.349.953.653.954.254.554.756.658.059.060.959.560.861.360.660.558.957.956.355.555.153.254.255.355.557.058.258.258.758.559.358.857.157.155.955.855.858.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value8540383693626186315763046650337051470340712617149869980705566893670727733627486178004879738977294284960549983497484105949112003110042116539118986121648120025118057119760116947117780117144115369114008162881153230154689160068159643156314152138
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value43155298493078331493313153498135146329763285931939319503104230546306073050030286353533497436170375443908939762442104862048652519115527455315532225209051113485084880347987474064597166534652246580670059699726856262023
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.647.748.750.048.249.650.046.346.045.645.345.043.241.740.738.840.239.038.439.139.240.841.743.444.244.546.545.544.344.142.741.541.441.041.140.340.842.642.543.843.843.940.8

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value17172146141206611059110531314416913152171580013683132741472311608131871651216954198791072886099641925910934878996641194410840150681625318836204001902322557226022423523989157811691237066302183239134678356133466021167
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.117.519.317.517.520.224.021.622.219.119.020.916.818.622.522.625.512.29.610.29.611.09.09.110.79.912.913.715.517.016.118.819.320.620.513.714.822.819.720.921.722.322.213.9

us-gaap:AssetsCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

cop:AffiliatedCompanies


Assets
Period End2020-12-312019-12-31
Value25793289
Percentage of AssetsCurrent21.419.4
Percentage of Assets4.14.7
Percentage of Assets cop:AffiliatedCompanies0.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value6608283129912490290739085088719359416218591537163234498463256911753431093610409028634866236824133813266450625408614275206246388339095422361812681044370757803437550561729454799641208555427551456
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.73.44.83.94.66.07.210.28.38.78.55.34.77.08.69.29.73.54.04.33.04.92.42.33.42.44.34.55.06.35.33.23.34.63.11.10.92.33.82.23.43.96.00.00.00.00.40.50.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis

cop:RemainingMaturitiesWithinOneYear, us-gaap:CarryingReportedAmountFairValueDisclosure


Cash
Period End2021-06-302021-03-312020-12-31
Value484313
Percentage of CashAndCashEquivalentsAtCarryingValue0.71.50.4
Percentage of Assets0.10.10.0
Percentage of Assets cop:RemainingMaturitiesWithinOneYear us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument

cop:RemainingMaturitiesWithinOneYear, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:CommercialPaper


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4843133.04.0198.0
Percentage of CashAndCashEquivalentsAtCarryingValue0.71.50.40.10.10.50.2
Percentage of Assets0.10.10.00.00.00.00.0
Percentage of Assets cop:RemainingMaturitiesWithinOneYear us-gaap:CarryingReportedAmountFairValueDisclosure us-gaap:CommercialPaper0.00.00.00.00.00.00.0

cop:RemainingMaturitiesWithinOneYear, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:ForeignGovernmentDebt


Cash
Period End2021-03-312020-12-31
Value4313
Percentage of CashAndCashEquivalentsAtCarryingValue1.50.4
Percentage of Assets0.10.0
Percentage of Assets cop:RemainingMaturitiesWithinOneYear us-gaap:CarryingReportedAmountFairValueDisclosure us-gaap:ForeignGovernmentDebt0.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Cash
Period End2020-09-302020-06-302020-03-312019-12-31
Value3.04.0199.0
Percentage of CashAndCashEquivalentsAtCarryingValue0.10.10.50.2
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value69563163331527963190418353627458619764706151394034575206653669117534310936102368
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.13.85.34.45.16.47.610.68.79.08.85.65.07.48.99.29.73.54.02.4

Short Term Investments

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


Short
Period End2020-12-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value360930287322492488756122881873269627332525023412893070.037428821027275230.0508581258926352231973
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.84.31.00.30.41.20.90.42.63.63.50.30.10.21.30.30.00.30.20.20.20.10.00.00.30.41.71.61.40.6

Marketable Securities Current

us-gaap:MarketableSecuritiesCurrent us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:MarketableSecuritiesCurrent

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Marketable
Period End2021-03-312020-12-312020-03-312019-12-312019-03-312018-12-31
Value15641256420211118051462
Percentage of MarketableSecuritiesCurrent100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.00.63.02.52.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.0

us-gaap:MarketableSecuritiesCurrent us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Marketable
Period End2021-03-312020-12-312020-03-312019-12-312019-03-312018-12-31
Value15641256420211118051462
Percentage of MarketableSecuritiesCurrent100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.00.63.02.52.1
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.0

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1138109810021034982726102695510891014100712391093105310601023101910971018110811501072112411431277123313311330129112211194126811341133965117611786072463171646986794451974940
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.31.61.61.61.11.51.41.51.41.41.81.61.51.41.41.31.21.11.21.21.11.21.11.11.11.11.11.11.01.01.11.01.00.81.01.03.73.04.64.45.03.33.2

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:InventoryRawMaterialsAndSupplies


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value566557541531530534554556608595575566563550548600
Percentage of InventoryRawMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.90.80.80.80.80.80.90.80.80.80.80.80.70.7

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value84953645457567619602259594255252857523085808941035876389729115178896417357831644167515641868168829112798282490019064875994761686197132462700
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.60.70.91.13.03.20.83.60.70.83.30.81.31.41.25.03.30.60.90.70.70.81.61.51.41.61.42.42.32.47.57.87.48.11.51.72.01.8

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value476035072255038552737927686992996749716491211116840114789
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets76.071.978.675.388.389.285.582.377.976.373.4

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

cop:Otherforeigncountriesmember


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value108713081346212222342469
Percentage of NoncurrentAssets2.32.62.43.82.82.8
Percentage of Assets1.71.91.92.92.52.5
Percentage of Assets cop:Otherforeigncountriesmember0.00.00.00.00.00.0

country:AU


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value667672289301965712259127881496913450134831257212461
Percentage of NoncurrentAssets14.014.316.917.515.514.715.013.814.810.810.9
Percentage of Assets10.710.313.313.213.713.112.811.411.58.28.0
Percentage of Assets country:AU0.00.00.00.00.00.00.00.00.00.00.0

country:CA


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value638557695333561316846167662087421380213042008320439
Percentage of NoncurrentAssets13.411.49.710.221.219.320.922.023.417.217.8
Percentage of Assets10.28.27.67.718.817.217.918.118.213.113.1
Percentage of Assets country:CA0.00.00.00.096.097.495.995.595.596.396.6

country:CN


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value14911447138012751372164719132143240824492656
Percentage of NoncurrentAssets3.12.92.52.31.71.91.92.22.62.12.3
Percentage of Assets2.42.12.01.71.51.71.61.82.11.61.7
Percentage of Assets country:CN0.00.00.00.00.00.00.00.00.00.00.0

country:GB


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1.02.0158333353209415453275959448032572975
Percentage of NoncurrentAssets0.00.02.96.04.04.85.36.14.92.82.6
Percentage of Assets0.00.02.34.53.64.34.65.03.82.11.9
Percentage of Assets country:GB0.00.00.00.00.00.00.00.00.00.00.0

country:ID


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value464605669758856119115261780166217261745
Percentage of NoncurrentAssets1.01.21.21.41.11.41.51.81.81.51.5
Percentage of Assets0.70.91.01.01.01.21.31.51.41.11.1
Percentage of Assets country:ID0.00.00.00.00.00.00.00.00.00.00.0

country:LY


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value670668679699704
Percentage of NoncurrentAssets1.41.31.21.30.9
Percentage of Assets1.10.91.01.00.8
Percentage of Assets country:LY0.00.00.00.00.0

country:MY


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1501187123272736332335993811340618321349
Percentage of NoncurrentAssets3.23.74.24.94.24.13.83.52.01.2
Percentage of Assets2.42.73.33.73.73.73.32.91.60.9
Percentage of Assets country:MY0.00.00.00.00.00.00.00.00.00.0

country:NO


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value52945258558261546228693381428089728859185664
Percentage of NoncurrentAssets11.110.410.111.17.98.08.28.38.05.14.9
Percentage of Assets8.57.58.08.46.97.17.06.96.23.93.6
Percentage of Assets country:NO0.00.00.00.00.00.00.00.00.00.00.0

country:US


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2403426566268382362332949374453964137593354433375032246
Percentage of NoncurrentAssets50.552.448.842.741.643.039.838.738.928.928.1
Percentage of Assets38.437.738.432.236.738.434.031.830.322.020.6
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.0

Assets Noncurrent

us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:AssetsNoncurrent

cop:AffiliatedCompanies


Assets
Period End2020-12-312019-12-31
Value3525738905
Percentage of AssetsNoncurrent100.0100.0
Percentage of Assets56.355.2
Percentage of Assets cop:AffiliatedCompanies0.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10210697746110597110431131406136859146230138148126179151253149209147135150224147409143225141242
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets163.1138.6158.0150.5146.4140.4125.5117.0107.792.997.495.193.992.391.692.8

us-gaap:PropertyPlantAndEquipmentGross us-gaap:Restatement

srt:ScenarioPreviouslyReported


Property
Period End2020-12-312019-12-312018-12-31
Value137510391044
Percentage of PropertyPlantAndEquipmentGross1.31.10.9
Percentage of Assets2.21.51.5
Percentage of Assets srt:ScenarioPreviouslyReported0.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6557264082622135872657176554255547760014600436696964899666646816966710647486411562018664007307572984742437352170413744207385470256707867011769511668906532163399608245951858916598905722065694650296404565956636446067153534
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets76.876.699.493.090.785.278.785.384.393.792.794.598.994.388.385.679.575.581.477.477.373.672.270.265.963.860.758.957.155.755.352.952.050.550.351.950.240.342.441.441.239.938.835.2

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:Restatement

srt:ScenarioPreviouslyReported


Accumulated
Period End2020-12-312019-12-312018-12-31
Value721649550
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment1.21.20.8
Percentage of Assets1.20.90.8
Percentage of Assets srt:ScenarioPreviouslyReported0.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5771758270398934126941120406454226943814443344594245698447364630645997456834666946846544405833161649636856600066446718287438774220754447579075424740257282771129694386789067263736127122785559841808309084268837658255487708
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets67.669.663.765.365.262.559.962.362.264.365.363.467.265.062.362.360.161.965.065.466.366.168.267.866.467.464.763.762.061.761.759.459.457.657.463.862.552.554.953.752.652.552.857.7

us-gaap:PropertyPlantAndEquipmentNet us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:PropertyPlantAndEquipment, us-gaap:CoVenturer


Property
Period End2020-12-312019-12-31
Value258335
Percentage of PropertyPlantAndEquipmentNet0.60.8
Percentage of Assets0.40.5
Percentage of Assets us-gaap:PropertyPlantAndEquipment us-gaap:CoVenturer0.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:Restatement

srt:ScenarioPreviouslyReported


Property
Period End2020-12-312019-12-312018-12-31
Value654390494
Percentage of PropertyPlantAndEquipmentNet1.60.91.1
Percentage of Assets1.00.60.7
Percentage of Assets srt:ScenarioPreviouslyReported0.00.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2442246425282420237223702426217421112303134412091188157211071081107611301160113010861094106395510201008888112611731050943908891885882902889995972992968909905708
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.92.94.03.83.83.63.43.13.03.21.91.71.72.21.51.41.41.31.31.21.11.11.10.90.90.90.80.91.00.90.80.80.80.80.80.80.80.60.60.60.60.60.60.5

us-gaap:OtherAssetsNoncurrent us-gaap:Restatement

srt:ScenarioPreviouslyReported


Other
Period End2020-12-312019-12-31
Value783896
Percentage of OtherAssetsNoncurrent31.036.9
Percentage of Assets1.31.3
Percentage of Assets srt:ScenarioPreviouslyReported0.00.0

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value180215641256809971420211119511462
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.11.92.01.31.50.63.02.82.1

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302018-12-31
Value18021256809971211119511462
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.01.31.53.02.82.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value180215641256809971420211119511462
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.11.92.01.31.50.63.02.82.1
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302018-12-31
Value18021256809971211119511462
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.01.31.53.02.82.1
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FinancialInstrument

cop:CenovusEnergy


Equity
Period End2020-09-302020-06-302019-12-312017-05-17
Value80997121101960
Percentage of EquitySecuritiesFvNi100.0100.0100.00.0
Percentage of Assets1.31.53.00.0
Percentage of Assets cop:CenovusEnergy0.00.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3591377926692217206029003176314836183815386338873642382440093378340134943631368637464088489551735833670679828692925496049314103331043710421100139982909621550196532083521018202031839915485
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.54.33.53.34.54.54.55.15.35.55.55.35.45.54.54.44.04.03.93.94.15.04.95.26.16.87.37.68.07.98.68.98.88.58.78.013.212.813.513.112.711.810.2

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-31
Value424256
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0
Percentage of Assets0.00.10.1

Debt Current

us-gaap:DebtCurrent

us-gaap:DebtCurrent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12056896194821461261051211141131129589337257513313798109510891336133120791427175138193182168816641712589572554135195523354179700210136166066059361728
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.40.81.00.80.20.20.10.20.20.20.20.10.10.53.51.84.91.21.21.41.42.11.50.20.10.20.21.41.41.40.50.50.51.10.82.03.74.30.70.40.40.40.61.1

us-gaap:DebtCurrent us-gaap:Restatement

srt:ScenarioPreviouslyReported


Debt
Period End2020-12-312019-12-312018-12-31
Value1688779
Percentage of DebtCurrent27.182.970.5
Percentage of Assets0.30.10.1
Percentage of Assets srt:ScenarioPreviouslyReported0.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value81507184536646404105607570435942899673707395740166387109939771319926752669097537734888259256828787349563115371414116191171171512916335167151831517443173831836036430280682893629344292182741923695
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.58.68.67.36.59.310.08.412.610.310.610.59.610.112.89.512.78.67.78.07.68.89.57.87.88.79.911.913.314.312.813.614.315.614.915.116.122.418.318.718.318.317.515.6

us-gaap:LiabilitiesCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

cop:AffiliatedCompanies


Liabilities
Period End2020-12-312019-12-31
Value21102603
Percentage of LiabilitiesCurrent39.337.0
Percentage of Assets3.43.7
Percentage of Assets cop:AffiliatedCompanies0.00.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value135511681121111111451852204510303505140212591180107111371029851139416799941299110713791510138112271204140013931905182116711841237524532367155116722427207120182112233321292234
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.41.81.81.82.82.91.54.92.01.81.71.61.61.41.11.81.91.11.41.21.41.51.31.11.11.21.21.61.51.41.52.02.12.01.31.51.51.41.31.31.51.41.5

us-gaap:OtherLiabilitiesCurrent us-gaap:Restatement

srt:ScenarioPreviouslyReported


Other
Period End2020-12-312019-12-31
Value226347
Percentage of OtherLiabilitiesCurrent20.217.0
Percentage of Assets0.40.5
Percentage of Assets srt:ScenarioPreviouslyReported0.00.0

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value14069593203393128531030107712131539132015821301134110381005791756484394554701499659880864105116552770348527132911281336583366283728194751422045734836544548743402
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.10.50.50.51.31.51.51.72.21.92.21.91.91.41.31.00.90.50.40.60.70.50.60.80.80.91.42.32.92.32.42.43.12.92.52.52.92.83.03.03.43.12.2

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesNoncurrent

cop:AffiliatedCompanies


Liabilities
Period End2020-12-312019-12-31
Value1809922168
Percentage of LiabilitiesNoncurrent100.0100.0
Percentage of Assets28.931.4
Percentage of Assets cop:AffiliatedCompanies0.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value233762257819106188271830715841181081813117770171671614716554165811890822435
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.427.030.529.829.024.425.725.824.924.023.123.524.126.730.6

us-gaap:LongTermDebt us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Long
Period End2021-01-15
Value3900
Percentage of LongTermDebt0.0
Percentage of Assets0.0
Percentage of Assets cop:ConchoResourcesInc us-gaap:SubsequentEvent0.0

us-gaap:LongTermDebt us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value19135191541447814482141561416014175141791418314187141911420114204162601892926423
Percentage of LongTermDebt81.984.875.876.977.389.478.378.279.882.687.985.885.786.084.40.0
Percentage of Assets22.422.923.122.922.521.820.120.219.919.820.320.120.623.025.829.4
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2020-12-312019-12-312018-12-182017-12-312016-12-31
Value1910618108161472243529307
Percentage of LongTermDebt100.0100.00.0100.00.0
Percentage of Assets30.525.70.030.632.6
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.0

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value2000020000153691538714998149731489514968197032727524880225652166221725226232359228653
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.423.924.524.423.823.021.121.426.930.425.519.418.318.514.815.118.8

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1880519338147501490514852148471479014799148091483214856149021488516709171281967319670253402618627353273462737623453247162478722318223831949919570194942107321096211672031920770187821882921358216102253422590226042265626925
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.023.123.623.623.622.821.021.020.820.721.221.121.623.623.326.325.228.829.229.028.527.424.123.322.120.319.216.416.116.217.817.618.117.317.716.316.513.114.114.614.114.214.517.7

us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:Restatement

srt:ScenarioPreviouslyReported


Long
Period End2020-12-312019-12-312018-12-31
Value723633698
Percentage of LongTermDebtAndCapitalLeaseObligations4.94.34.7
Percentage of Assets1.20.91.0
Percentage of Assets srt:ScenarioPreviouslyReported0.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value53314982374738543901414146345021
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.26.06.06.16.26.46.67.2

us-gaap:DeferredIncomeTaxLiabilitiesNet us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value374746345021
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0
Percentage of Assets6.06.67.2
Percentage of Assets us-gaap:OtherNoncurrentLiabilities0.00.00.0

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1297153016971661158615631781178616891704176417551774183218541903249925342552247125332493228628642849297929642459
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.82.72.62.52.42.52.52.42.42.52.52.62.62.52.53.22.92.82.62.62.52.32.72.52.72.52.1

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7227077416571234
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent42.539.742.035.448.4
Percentage of Assets1.21.01.10.91.4
Percentage of Assets country:US us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value345333308399534
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent20.318.717.521.520.9
Percentage of Assets0.60.50.40.50.6
Percentage of Assets us-gaap:ForeignPlan us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value131174174220242
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent7.79.89.911.99.5
Percentage of Assets0.20.20.20.30.3
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value155
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value116
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value94
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value55
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value200
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.3

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value7859328051044967
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets1.31.31.11.51.4

us-gaap:OperatingLeaseLiability us-gaap:Restatement

srt:ScenarioPreviouslyReported


Operating
Period End2020-12-312019-12-31
Value785932
Percentage of OperatingLeaseLiability100.0100.0
Percentage of Assets1.31.3
Percentage of Assets srt:ScenarioPreviouslyReported0.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value865
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value80
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value43155298493078331493313153498135146329763285931939319503104230546306073050030286353533497436170375443908939762442104862048652519115527455315532225209051113485084880347987474064597166534652246580670059699726856262023
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.647.748.750.048.249.650.046.346.045.645.345.043.241.740.738.840.239.038.439.139.240.841.743.444.244.546.545.544.344.142.741.541.441.041.140.340.842.642.543.843.843.940.8

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value44276431552984930783314933138735050352393307432981320643207931222307183080130712304993560135226364563783139407400824455548969490085227355661556865362152492515374893249240484274787746443670436573466326705787052169109699176594563417626135626589507
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.851.647.748.750.048.349.750.146.446.145.845.545.343.442.041.039.140.539.238.739.439.541.142.143.744.544.946.845.844.744.543.041.841.841.341.540.741.242.942.944.144.244.20.00.00.041.239.40.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value-4920.0-5080.0-5218.0-5666.0-5825.0-6145.0-5357.0-5654.0-5827.0-5914.0-6063.0-5442.0-5637.0-5371.0-5518.0-6193.0-6247.0-1902.02002408743393877308647733065-1875.04560
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-11.1-11.8-17.5-18.4-18.5-19.6-15.3-16.0-17.6-17.9-18.9-17.0-18.1-17.5-17.9-17.6-15.6-3.63.88.49.18.34.76.94.9-3.35.1
Percentage of Assets-5.8-6.1-8.3-9.0-9.2-9.4-7.6-8.0-8.2-8.3-8.7-7.7-8.2-7.6-7.5-6.9-6.4-1.61.73.53.83.42.03.12.0-1.30.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value603376027847133471134707947027469834695446922468774687946858467464664246622465074635746071456904532445130450164472544132436814339642724
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest136.3139.7157.9153.0149.5149.8134.0133.2141.9142.1146.2146.1149.7151.8151.4132.0115.788.187.093.694.396.968.063.969.877.147.7
Percentage of Assets70.672.075.374.674.772.366.666.865.865.667.066.467.865.963.651.847.639.538.738.739.139.529.228.228.730.40.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-312007-12-31
Value212118181818181818181818181818181818181818186653417658067005969972176936165371171717
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.099.20.099.299.399.20.099.299.10.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.040.80.042.543.843.80.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value371163560835213364483735137545397423948436769355343401032495309672966329391315483641444504411603533834764337564919440397322143064249861
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest83.882.5118.0118.4118.6119.6113.4112.0111.2107.7106.1101.399.296.695.489.690.885.178.473.072.672.774.858.551.454.555.7
Percentage of Assets43.542.556.257.759.257.756.456.151.649.748.646.144.941.940.135.137.438.234.930.230.129.632.125.821.221.40.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302011-12-312010-12-312009-12-312008-12-312007-12-31
Value-48278.0-47672.0-47297.0-47130.0-47130.0-47130.0-46405.0-45656.0-44906.0-43656.0-42905.0-41979.0-41052.0-40406.0-39906.0-36906.0-36780.0-36780.0-36780.0-36780.0-36845.0-36696.0-31787.0-20077.0-16211.0-16211.0-7969.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-109.0-110.5-158.5-153.1-149.7-150.2-132.4-129.6-135.8-132.4-133.8-130.9-131.5-131.5-129.6-104.8-91.8-70.4-70.1-75.9-77.0-79.0-48.4-29.1-25.9-28.8-8.9
Percentage of Assets-56.5-57.0-75.5-74.6-74.8-72.5-65.8-64.9-63.0-61.1-61.3-59.5-59.6-57.1-54.4-41.1-37.7-31.6-31.2-31.4-31.9-32.2-20.7-12.8-10.7-11.30.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2121181818181818181818181818181818181818181818181818181818181818181818181818171717171717
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6033760278471334711347079470274698346954469224687746879468584674646642466224659546558465104650746480464294636546357463114624446136460714600045926457544569045637455314542545324451304501644936447254461044468443144413243681
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets70.672.075.374.674.772.366.666.865.865.667.066.467.865.963.662.259.752.951.849.348.346.447.643.741.341.939.538.737.838.138.738.138.938.638.739.139.527.629.228.827.827.828.228.7

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3711635608352133644837351375453974239484367693553434010324953096729663293912813028033318043154831896332483463236414407864277943867445044545143653424284116039526378993666235338347643375651286491944668144964424804039732214
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.542.556.257.759.257.756.456.151.649.748.646.144.941.940.137.635.936.235.133.834.634.737.438.538.239.938.238.235.935.334.933.032.431.130.230.129.631.532.130.228.126.625.821.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value-4920.0-5080.0-5218.0-5666.0-5825.0-6145.0-5357.0-5654.0-5827.0-5914.0-6063.0-5442.0-5637.0-5371.0-5518.0-5292.0-6342.0-5961.0-6193.0-5444.0-5371.0-5146.0-6247.0-6125.0-3641.0-4589.0-1902.05852498180220022712184034784087433938773972308632036125554747733065-1875.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-5.8-6.1-8.3-9.0-9.2-9.4-7.6-8.0-8.2-8.3-8.7-7.7-8.2-7.6-7.5-7.1-8.1-6.8-6.9-5.8-5.6-5.2-6.4-5.8-3.3-4.2-1.60.52.11.51.72.31.63.03.53.83.42.42.02.13.83.53.12.0-1.3

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4827847672472974713047130471304640545656449064365642905419794105240406399063895137981370183690636780367803678036780367803678036780367803678036780367803678036780367803678036780368453669633678317872867124862217132007716211
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.557.075.574.674.872.565.864.963.061.161.359.559.657.154.452.048.742.141.139.038.336.837.734.732.833.431.630.930.230.631.230.731.531.231.431.932.220.720.718.515.513.612.810.7

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.06.0264820431716638.034361750174916431638192221407.04517381626174616281933129-47.0-12.0-182.0128-24.0-24.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.06.0264820431716638.034361750174916431638192221407.04517381626174616281933129-47.0-12.0-182.0128-24.0-24.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4251208016728681572105298223372891289437833410334223992481105517511790144312801259421159619342172187025974180362263363911370537414730387035202350418258125613627419476191433934753040
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.521.230.419.85.734.238.730.136.431.639.136.139.327.330.615.825.823.821.919.622.68.423.625.825.123.421.932.424.639.528.023.926.532.325.323.315.526.039.033.635.53.4-8.39.27.66.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value734-1215.0-543.0-1116.0-530.0-1932.0-3830.0150-1461.0-1477.0-178.0-1638.0-1949.0-78.0-469.020087197-974.053275-2122.0-2065.0-626.0-2249.0-2664.0-3116.0-3357.0-3811.0-4265.0-3698.02315-2718.0-3415.0-2433.0-2929.0-2773.0-2915.0-3010.01124-3245.0-2683.0-2211.0-1119.041013840-2157.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.7-12.4-9.9-25.4-19.3-31.4-49.71.9-18.4-16.1-1.8-17.3-22.9-0.9-5.830.0106.1-13.00.84.2-38.1-41.2-9.3-30.0-30.8-38.9-28.3-29.5-29.0-23.016.6-17.6-24.1-16.6-19.2-18.4-19.2-18.77.5-19.4-15.2-3.91.58.78.4-4.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1203.0-1015.0-652.0-177.0-649.0-1230.0-1270.0-1132.0-1654.0-1173.0-1317.0-1263.0-3003.0-3776.0-2586.0-3827.0-4599.0-1344.0-1906.0-347.0-1120.04137-975.0-990.01555-1019.0542-973.0-789.0-1354.0-3873.0-1085.0-1845.0-330.01402-532.0-2081.0-3270.0-4687.0-4322.0-4235.0-3061.0-3492.0-4687.0-4066.0-574.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-12.6-10.3-11.9-4.0-23.6-20.0-16.5-14.6-20.8-12.8-13.6-13.4-35.3-42.9-31.9-57.2-67.8-17.9-28.9-5.3-20.182.5-14.4-13.218.0-12.74.6-7.5-5.4-8.4-27.7-7.0-13.0-2.39.2-3.5-13.7-20.3-31.5-25.9-24.0-5.44.7-9.9-8.9-1.3

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3793-152.0519-394.0-993.0-1179.0-2096.01261-273.03192211483-1749.0-1330.0-586.0-623.04425-501.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.7-1.59.5-9.0-36.1-19.1-27.216.3-3.43.522.95.1-20.6-15.1-7.2-9.365.3-6.7

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value364203-406.0-108.0-93.0-227.0-140.0-83.0-220.0-1.0-115.013619765-911.0-222.0-1234.0-1314.0-69.0-695.0-630.0-827.0-1488.0-682.035-637.0-315.03914032301694584432415194311892584782934298757-392.0-508.0-35.0
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1867188615411411115814111488156614901546161214941438141216331608162519792061242523292247238222712329213122712096207018921893190218321807163216991626183819191870207520702216224622802318
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-101.0424334171-457.0-297.098-150.0-184.0-142.0-9.0239-101.0-181.0477-34.0-49.0-129.0-9.0-61.00.0-454.0-29.0-260.0-56.0-1302.0-596.0-258.0-282.0353-141.0-70.0-134.0528209842-1807.01859-1469.020380317532486507-502.0396
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3851-49.047304-277.065-75.0734.0-251.014433-12.04012-73.076-22.0-45.084-61.0-7.0-117.035-77.031597627-23.01222.0177-207.028-1433.01402-2535.0298-988.02669-2535.0497-38.02439
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-704.0-440.0-113.0-30.0393445-42.022434514925-359.0-121.034-385.0-162.04.0-79.0-90.0-46.0-374.0-416.0-83.0138-15.0-630.0-623.0-66.0-472.0595
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4251208016728681572105298223372891289437833410334223992481105517511790144312801259421159619342172187025974180362263363911370537414730387035202350418258125613627419476191433934753040
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.521.230.419.85.734.238.730.136.431.639.136.139.327.330.615.825.823.821.919.622.68.423.625.825.123.421.932.424.639.528.023.926.532.325.323.315.526.039.033.635.53.4-8.39.27.66.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2091982-772.0-450.0260-1739.07203056158018331868186116408881579420-3440.0586-35.0-1040.0-1071.0-1469.0-3450.0-1071.0-179.0272-39.02704208121232487248020502139142617982267293733902616340230282041305541642098
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.910.0-14.1-10.39.5-28.29.339.419.920.019.319.719.310.119.46.3-50.77.8-0.5-16.0-19.2-29.3-51.0-14.3-2.13.4-0.320.914.213.217.816.014.514.69.311.914.918.322.715.719.35.4-2.76.59.14.7

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CorporateNonSegment, us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value66-121.0-390.0185-1775.0-14.0-193.0271-247.028-541.0-327.0-424.0-348.0
Percentage of NetIncomeLoss3.2-12.386.771.2102.1-0.5-12.214.8-13.31.7-60.9-77.912.3-59.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-1.2-8.96.7-28.8-0.2-2.43.0-2.60.3-6.1-4.9-6.3-4.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment us-gaap:CorporateAndOther1650.0-189.10.09250.0-13653.8-19.4-4825.0193.6-316.735.0-13525.0-760.5-2650.0-994.3

us-gaap:OperatingSegments, cop:AlaskaSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value371159-643.0-16.0-141.0813143064623844454274185241175103199-11.0
Percentage of NetIncomeLoss17.716.283.33.6-54.2-4.743.610.029.220.923.822.925.559.074.424.5-5.8-1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.91.6-11.7-0.4-5.11.34.13.95.84.24.64.54.96.014.51.52.9-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:AlaskaSegment26.214.0-63.5-1.9-32.27.323.223.632.427.330.528.629.837.896.811.118.6-1.1

us-gaap:OperatingSegments, cop:AsiaPacificOperatingSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value175317648272
Percentage of NetIncomeLoss8.432.3249.2-15.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.83.223.64.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:AsiaPacificOperatingSegment27.854.9144.027.1

us-gaap:OperatingSegments, cop:CanadaOperatingSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value10210.0-86.0-109.0
Percentage of NetIncomeLoss4.91.0-33.16.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.10.1-3.1-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:CanadaOperatingSegment22.71.8-52.1-32.7

us-gaap:OperatingSegments, cop:EuropeMiddleEastAndNorthAfrica


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value20715392252012171
Percentage of NetIncomeLoss9.915.6-20.49.6-11.671.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.62.10.93.328.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:EuropeMiddleEastAndNorthAfrica17.815.621.38.733.5177.2

us-gaap:OperatingSegments, cop:LowerFortyEight


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1175468-78.0-365.0-437.026206193513410308-97.0-2536.0-362.0
Percentage of NetIncomeLoss56.247.717.3-140.425.10.913.010.527.625.034.7-23.173.7-61.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.34.8-1.8-13.3-7.10.32.62.15.44.83.5-1.5-37.4-4.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:LowerFortyEight20.07.2-3.4-26.0-14.10.75.44.711.310.67.8-3.1-82.1-11.2

us-gaap:OperatingSegments, cop:OtherInternational


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-5.0-4.0-8.0-6.0287381131316-5.0-44.0-20.0-9.0-48.0
Percentage of NetIncomeLoss-0.2-0.41.8-2.3-1.62.45.17.117.0-0.3-5.0-4.80.3-8.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.0-0.2-0.20.50.91.01.43.3-0.1-0.5-0.3-0.1-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments cop:OtherInternational-250.0-400.0-800.0-600.0933.30.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, country:CA


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-75.0-86.0-109.0511001223433-65.02801379948
Percentage of NetIncomeLoss16.7-33.16.31.76.36.71.82.0-7.366.7-40.1161.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-3.1-1.80.71.31.30.40.4-0.74.220.312.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:CA-22.9-52.1-32.714.226.221.38.06.3-10.251.5197.3120.9

us-gaap:OperatingSegments, srt:AsiaPacific


Net
Period End2020-09-302019-09-30
Value25443
Percentage of NetIncomeLoss-5.614.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.65.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:AsiaPacific5.240.8

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2091982-772.0-450.0278-1711.07433071159718461878187316549001598436-3426.0599-19.0-1026.0-1058.0-1456.0-3437.0-1056.0-164.0286-24.02727209821372503249620632153144118132289295534102631341930422053306941832112
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.910.0-14.1-10.310.1-27.89.639.620.120.219.419.819.410.219.76.5-50.58.0-0.3-15.7-19.0-29.0-50.8-14.1-1.93.6-0.221.114.313.317.916.114.614.79.412.015.118.422.915.819.45.4-2.86.59.24.7

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.018282315171310.01214121916141316141313131515141523171416161314151522182015171412141914
Percentage of ProfitLoss-0.0-0.06.5-1.63.10.51.10.70.50.60.81.31.23.7-0.42.2-84.2-1.4-1.2-0.9-0.4-1.4-9.14.9-62.50.80.80.70.60.60.60.71.00.81.00.60.60.60.50.50.60.50.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.70.50.30.20.20.10.10.10.20.10.20.20.20.20.20.20.20.30.20.20.20.20.10.20.10.10.10.10.10.10.10.10.10.10.10.10.10.0-0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312012-12-312012-09-30
Value2091982-772.0-450.0260-1739.072030561580183318681861164088814261798
Percentage of ProfitLoss100.0100.0100.0100.093.5101.696.999.598.999.399.599.499.298.799.099.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.910.0-14.1-10.39.5-28.29.339.419.920.019.319.719.310.19.311.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value734-1215.0-543.0-1116.0-530.0-1932.0-3830.0150-1461.0-1477.0-178.0-1638.0-1949.0-78.0-469.020087197-974.053275-2122.0-2065.0-626.0-2249.0-2664.0-3116.0-3357.0-3811.0-4265.0-3698.02315-2718.0-3415.0-2433.0-2929.0-2773.0-2915.0-3010.01124-3245.0-2683.0-2211.0-1119.041013840-2157.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.7-12.4-9.9-25.4-19.3-31.4-49.71.9-18.4-16.1-1.8-17.3-22.9-0.9-5.830.0106.1-13.00.84.2-38.1-41.2-9.3-30.0-30.8-38.9-28.3-29.5-29.0-23.016.6-17.6-24.1-16.6-19.2-18.4-19.2-18.77.5-19.4-15.2-3.91.58.78.4-4.8

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value12651200105811328761649159516751729163716171599199915351517108810209669999161133182121372174240733324356458842463895
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1203.0-1015.0-652.0-177.0-649.0-1230.0-1270.0-1132.0-1654.0-1173.0-1317.0-1263.0-3003.0-3776.0-2586.0-3827.0-4599.0-1344.0-1906.0-347.0-1120.04137-975.0-990.01555-1019.0542-973.0-789.0-1354.0-3873.0-1085.0-1845.0-330.01402-532.0-2081.0-3270.0-4687.0-4322.0-4235.0-3061.0-3492.0-4687.0-4066.0-574.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-12.6-10.3-11.9-4.0-23.6-20.0-16.5-14.6-20.8-12.8-13.6-13.4-35.3-42.9-31.9-57.2-67.8-17.9-28.9-5.3-20.182.5-14.4-13.218.0-12.74.6-7.5-5.4-8.4-27.7-7.0-13.0-2.39.2-3.5-13.7-20.3-31.5-25.9-24.0-5.44.7-9.9-8.9-1.3

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value583588464454455458463341346350354334337338319324331331313314313313923922909910907907856855853852814815809808818843871900917944799816816744
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value6063751660.00.072674974912507529269276465009559709631121260.00.01493050189931393199314916362608868
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value32.042.77.512.00.165-0.0950.0280.120.220.31-0.0260.3550.3680.4930.3040.3320.2143.58-0.0040.380.360.35-0.1740.39-0.81.8-0.0190.350.40.43-0.0060.450.440.47-0.0150.520.570.46-0.0140.490.450.480.0320.420.320.47
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value1618192423201716162432363644
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber dei:LegalEntity, us-gaap:BusinessAcquisition

cop:ConchoResourcesInc, cop:ConchoResourcesInc


Share
Period End2021-01-15
Value1.599
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.0

cop:ConchoResourcesInc, cop:ConchoResourcesIncorporated


Share
Period End2021-01-15
Value1.599
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value55.1254.1152.8852.1852.1455.8852.6148.3343.6745.7339.5437.1335.6532.06
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value3384445045795118854917894218452200020910251832360824800
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312019-12-022018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value466644791513702527782087181800268887450809069747441
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value12061177108188238145944265587210711125120810681143
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value996510214304012546757349709691345148714001540
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Sale Of Short Term Investments

us-gaap:ProceedsFromSaleOfShortTermInvestments

us-gaap:ProceedsFromSaleOfShortTermInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3876296632392629354126069097322482498726132891799241121172594022711683070.00.00.00.00.03622832112730.0752188-2188.050558912163-7987.02037931
Percentage of ProceedsFromSaleOfShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Sale Of Longterm Investments

us-gaap:ProceedsFromSaleOfLongtermInvestments

us-gaap:ProceedsFromSaleOfLongtermInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value2127191627250.00.0
Percentage of ProceedsFromSaleOfLongtermInvestments100.0100.0100.0100.0100.0100.00.00.0

cop:EquitySecuritiesFvNiSharesSold us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:EquitySecuritiesFvNiSharesSold

cop:CenovusEnergyInc, us-gaap:CommonStock


Equity
Period End2021-06-30
Value20
Percentage of EquitySecuritiesFvNiSharesSold100.0

cop:ExplorationAbandonmentAndImpairmentCashPayments

cop:ExplorationAbandonmentAndImpairmentCashPayments


Exploration
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.06.0969443.067602934127
Percentage of ExplorationAbandonmentAndImpairmentCashPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:FuturePricesAnnualIncreaseDecreasePercentage us-gaap:StatementGeographical, us-gaap:StatementScenario, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType

cop:FuturePricesAnnualIncreaseDecreasePercentage

cop:LowerFortyEight, srt:ScenarioForecast, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, cop:WindRiverBasin, us-gaap:MeasurementInputCommodityFuturePrice


Future
Period End2035-01-01
Value2.2
Percentage of FuturePricesAnnualIncreaseDecreasePercentage100.0

cop:IncreaseDecreaseInCapitalAccrual

cop:IncreaseDecreaseInCapitalAccrual


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-59.06122-332.081-7.0-83.010735
Percentage of IncreaseDecreaseInCapitalAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense

cop:OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7131884571354892399563746854660063227370768972596621718574116542132438003
Percentage of OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:ProceedsFromCommonStockIssuance

cop:ProceedsFromCommonStockIssuance


Proceeds
Period End2021-03-312020-03-312019-03-312018-03-31
Value-28.02.0-38.0-18.0
Percentage of ProceedsFromCommonStockIssuance100.0100.0100.0100.0

cop:ProceedsFromSaleOfEquitySecuritiesFvNi us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:ProceedsFromSaleOfEquitySecuritiesFvNi

cop:CenovusEnergyInc, us-gaap:CommonStock


Proceeds
Period End2021-06-30
Value166
Percentage of ProceedsFromSaleOfEquitySecuritiesFvNi100.0

cop:ProceedsRecognizedFromSaleOfEquitySecuritiesFvNi us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:ProceedsRecognizedFromSaleOfEquitySecuritiesFvNi

cop:CenovusEnergyInc, us-gaap:CommonStock


Proceeds
Period End2021-06-30
Value180
Percentage of ProceedsRecognizedFromSaleOfEquitySecuritiesFvNi100.0

cop:RelatedPartyRevenue

cop:RelatedPartyRevenue


Related
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302018-09-302018-06-30
Value24212123262724
Percentage of RelatedPartyRevenue100.0100.0100.0100.0100.0100.0100.0

cop:RelatedPartyTransactionsRelatedPartyRevenue

cop:RelatedPartyTransactionsRelatedPartyRevenue


Related
Period End2021-03-312020-03-312019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value1717212724232430
Percentage of RelatedPartyTransactionsRelatedPartyRevenue100.0100.0100.0100.0100.0100.0100.0100.0

srt:AverageSalesPrices us-gaap:StatementGeographical, us-gaap:StatementScenario, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType

srt:AverageSalesPrices

cop:LowerFortyEight, srt:ScenarioForecast, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, cop:WindRiverBasin, us-gaap:MeasurementInputCommodityFuturePrice


Average
Period End2035-01-01
Value2.2
Percentage of AverageSalesPrices100.0

us-gaap:AccretionExpenseIncludingAssetRetirementObligations

us-gaap:AccretionExpenseIncludingAssetRetirementObligations


Accretion
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value6362576266676786878687898988868992959610811210911812212212112712012011711710610510680102105105103107107
Percentage of AccretionExpenseIncludingAssetRetirementObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312010-09-302010-06-302010-03-31
Value2.0-3.02922.0-2.0521379241.01.06.044-35.0121266.06294175-182.0123621362127247816730108171.04981.0282.03840.0822593044862.09859153291
Percentage of AssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued


Business
Period End2021-01-15
Value286
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued us-gaap:BusinessAcquisition, us-gaap:EquityInterestIssuedOrIssuableByType

cop:ConchoResourcesInc, us-gaap:CommonStock


Business
Period End2021-01-15
Value285
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

cop:ConchoResourcesIncorporated, us-gaap:CommonStock


Business
Period End2021-01-15
Value285
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-01-15
Value285
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

us-gaap:BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax

cop:ConchoResourcesInc


Business
Period End2021-03-312020-03-31
Value190-390.0
Percentage of BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax100.0100.0

us-gaap:BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk

cop:ConchoResourcesInc, us-gaap:CommodityContract


Business
Period End2021-03-31
Value-132.0
Percentage of BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax-69.5

us-gaap:BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

cop:ConchoResourcesInc, cop:AcceleratedContracts, us-gaap:Sales


Business
Period End2021-03-31
Value-101.0
Percentage of BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax-53.2

us-gaap:BusinessAcquisitionsProFormaRevenue us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaRevenue

cop:ConchoResourcesInc


Business
Period End2021-03-312020-03-31
Value10407300
Percentage of BusinessAcquisitionsProFormaRevenue100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationAcquisitionRelatedCosts

cop:ConchoResourcesInc


Business
Period End2021-03-31
Value291
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

cop:ConchoResourcesInc, cop:ExplorationExpense


Business
Period End2021-03-31
Value22
Percentage of BusinessCombinationAcquisitionRelatedCosts7.6

cop:ConchoResourcesInc, cop:TaxesMiscellaneous


Business
Period End2021-03-31
Value4.0
Percentage of BusinessCombinationAcquisitionRelatedCosts1.4

cop:ConchoResourcesInc, us-gaap:OperatingExpense


Business
Period End2021-03-31
Value56
Percentage of BusinessCombinationAcquisitionRelatedCosts19.2

cop:ConchoResourcesInc, us-gaap:OtherExpense


Business
Period End2021-03-31
Value29
Percentage of BusinessCombinationAcquisitionRelatedCosts10.0

cop:ConchoResourcesInc, us-gaap:SellingGeneralAndAdministrativeExpenses


Business
Period End2021-03-31
Value180
Percentage of BusinessCombinationAcquisitionRelatedCosts61.9

us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:BusinessCombinationConsiderationTransferred1


Business
Period End2021-01-15
Value13100
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

cop:ConchoResourcesInc


Business
Period End2021-01-15
Value13100
Percentage of BusinessCombinationConsiderationTransferred1100.0

cop:ConchoResourcesIncorporated


Business
Period End2021-01-15
Value13100
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-01-15
Value13100
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed

cop:ConchoResourcesInc


Business
Period End2021-03-31
Value157
Percentage of BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed100.0

cop:ConchoResourcesIncorporated


Business
Period End2021-06-302021-03-31
Value0.0157
Percentage of BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed0.0100.0

us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

cop:ConchoResourcesInc, cop:ExplorationExpense


Business
Period End2021-03-31
Value18
Percentage of BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed11.5

cop:ConchoResourcesInc, cop:TaxesMiscellaneous


Business
Period End2021-03-31
Value4.0
Percentage of BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed2.5

cop:ConchoResourcesInc, us-gaap:SellingGeneralAndAdministrativeExpenses


Business
Period End2021-03-31
Value135
Percentage of BusinessCombinationSeparatelyRecognizedTransactionsAdditionalDisclosuresAcquisitionCostExpensed86.0

us-gaap:BusinessExitCosts1 us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:ContingentConsiderationByType, us-gaap:SubsequentEventType

us-gaap:BusinessExitCosts1

us-gaap:ScenarioPlan, cop:ConchoResourcesIncorporated, cop:ReimbursementOfAcquireeMergerRelatedCosts, us-gaap:SubsequentEvent


Business
Period End2020-10-19
Value142
Percentage of BusinessExitCosts1100.0

us-gaap:ScenarioPlan, cop:ConchoResourcesIncorporated, us-gaap:ContractTermination, us-gaap:SubsequentEvent


Business
Period End2020-10-19
Value450
Percentage of BusinessExitCosts1315.8

us-gaap:CapitalizedExploratoryWellCostChargedToExpense1

us-gaap:CapitalizedExploratoryWellCostChargedToExpense1


Capitalized
Period End2020-12-312017-03-31
Value12717
Percentage of CapitalizedExploratoryWellCostChargedToExpense1100.0100.0

us-gaap:CashAcquiredFromAcquisition

us-gaap:CashAcquiredFromAcquisition


Cash
Period End2021-06-302021-03-31
Value0.0382
Percentage of CashAcquiredFromAcquisition0.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.430.430.430.420.310.420.420.310.310.310.30.290.290.2850.260.270.270.270.250.250.250.250.740.740.730.730.730.730.690.690.690.690.660.660.660.660.660.660.660.660.660.660.550.550.550.5
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-06-302018-09-302018-06-302018-03-31
Value0.0620.073243251
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.0100.00.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-12.0-15.0-14.0-12.0-13.0-12.0-15.0-13.0-13.0-13.0-12.0-10.0-16.0-15.0-16.0-17.0-17.0-19.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-8.0-8.0-6.0-5.0-5.0-6.0-9.0-7.0-8.0-8.0-4.0-9.0-9.0-9.0-14.0-12.0-12.0-12.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses66.753.342.941.738.550.060.053.861.561.533.390.056.260.087.570.670.663.2

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-1.00.0-1.00.00.00.01.00.01.00.00.01.00.01.01.00.01.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses8.3-0.08.3-0.0-0.0-0.0-7.7-0.0-7.7-0.0-0.0-6.2-0.0-6.2-5.9-0.0-5.3

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0-1.00.00.0-1.00.0-1.00.0-1.0-1.0-2.0-1.0-2.0-1.0-2.0-1.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.0100.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-10.0-9.0-8.0-7.0-8.0-8.0-9.0-7.0-9.0-8.0-9.0-9.0-8.0-9.0-9.0-9.0-9.0-9.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.00.00.0700.00.00.0900.00.0900.00.0900.0900.0400.0900.0450.0900.0450.0900.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanContributionsByEmployer

country:US


Defined
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3837126663452011812
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan


Defined
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value137.0373522156452263
Percentage of DefinedBenefitPlanContributionsByEmployer34.218.9308.3533.333.3124.4225.018.6525.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value202422212121201818182322353435323134
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value303037373437343435353738404039413939
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets150.0125.0168.2176.2161.9176.2170.0188.9194.4194.4160.9172.7114.3117.6111.4128.1125.8114.7

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value151315171717162121212322272728292932
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value202022212022202526262726272725272526
Percentage of DefinedBenefitPlanInterestCost133.3153.8146.7123.5117.6129.4125.0119.0123.8123.8117.4118.2100.0100.089.393.186.281.2

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.01.01.02.01.02.02.01.03.02.02.02.02.02.02.03.02.02.0
Percentage of DefinedBenefitPlanInterestCost6.77.76.711.85.911.812.54.814.39.58.79.17.47.47.110.36.96.2

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value67484556303039734642674417729455776101
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value14134.02.04.04.08.01616181215161616171617
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost20.927.18.93.613.313.320.521.934.842.917.934.19.055.235.629.821.116.8

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-7.0-8.0-7.0-3.0-7.0-5.0-7.0-6.0-6.0-7.0-7.0-7.0-6.0-7.0-7.0-7.0-6.0-8.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-10.4-16.7-15.6-5.4-23.3-16.7-17.9-8.2-13.0-16.7-10.4-15.9-3.4-24.1-15.6-12.3-7.9-7.9

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value0.0-12.00.00.00.00.00.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments0.0100.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-42.0-2.0-16.0-27.00.0-1.0-8.0-37.0-11.0-6.0-35.0-14.0-147.00.0-13.0-21.0-37.0-60.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.00.01.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1-0.0-0.00.0-100.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value182122212121202019202020222122212323
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value161513141314131918191820222118202019
Percentage of DefinedBenefitPlanServiceCost88.971.459.166.761.966.765.095.094.795.090.0100.0100.0100.081.895.287.082.6

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.00.01.00.01.00.01.00.00.00.00.01.00.01.00.01.00.0
Percentage of DefinedBenefitPlanServiceCost5.60.04.80.04.80.05.00.00.00.00.04.50.04.50.04.30.0

us-gaap:DefinedBenefitPlanSpecialTerminationBenefits us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanSpecialTerminationBenefits

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-31
Value0.0-9.0
Percentage of DefinedBenefitPlanSpecialTerminationBenefits0.0100.0

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value583588464454455458463341346350354334337338319324331331313314313313
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value583588464454455458463341346350354334337338
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value11-2.0423129-122.022-94.0-49.075-77.0-26.0-139.0125-12.01417627
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiGainLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquitySecuritiesFvNiGainLoss

cop:CenovusEnergyInc


Equity
Period End2021-06-302020-06-30
Value418551
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0

us-gaap:EquitySecuritiesFvNiRealizedGainLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquitySecuritiesFvNiRealizedGainLoss

cop:CenovusEnergyInc


Equity
Period End2021-06-30
Value31
Percentage of EquitySecuritiesFvNiRealizedGainLoss100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value308447-162.0551-1691.0160116
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss us-gaap:FinancialInstrument

cop:CenovusEnergy


Equity
Period End2020-09-302020-06-302019-09-302019-06-30
Value-162.055111630
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.00.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

cop:CenovusEnergyInc


Equity
Period End2021-06-302020-06-30
Value387551
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss0.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:CenovusEnergy, us-gaap:CommonStock


Equity
Period End2021-03-312020-03-31
Value308-1691.0
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0

us-gaap:ExplorationExpense

us-gaap:ExplorationExpense


Exploration
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value57841047125971881513601221101021036995214759855134345761050521001061549482773459517296321313321277332219270679360266264176307252213383
Percentage of ExplorationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-10.0-19.0-16.05.0-7.090-47.021-28.0-12.024-5.028-30.0-7.0-5.0-13.0-10.031-13.017-16.0-21.0728.016838.0-7.0-18.024-9.07.036-23.01.0-15.01131-68.01736-12.010.0-54.0-36.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet us-gaap:IncomeStatementLocation

us-gaap:GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet

us-gaap:ForeignCurrencyGainLoss


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-15.0-7.0-12.074-19.024-23.02.0-4.02.02.05.0151.04.0-7.0465-35.0-86.0-97.0-63.01737-24.01.0-5.07.00.04.057-35.0-22.0-267.0397515-24.011
Percentage of GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments

cop:ConchoResourcesInc, us-gaap:CommodityContract


Gain
Period End2021-03-31
Value-305.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0

cop:ConchoResourcesIncorporated, us-gaap:CommodityContract


Gain
Period End2021-03-31
Value-305.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

cop:ConchoResourcesInc, cop:AcceleratedContracts, us-gaap:Sales


Gain
Period End2021-03-31
Value-132.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments43.3

cop:ConchoResourcesInc, us-gaap:CommodityContract, us-gaap:Sales


Gain
Period End2021-03-31
Value-173.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments56.7

cop:ConchoResourcesIncorporated, cop:AcceleratedContracts, us-gaap:Sales


Gain
Period End2021-03-31
Value-132.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments43.3

cop:ConchoResourcesIncorporated, us-gaap:CommodityContract, us-gaap:Sales


Gain
Period End2021-03-31
Value-173.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments56.7

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:CommodityContract, us-gaap:CostOfSales


Gain
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value13213-27.024-27.0-58.0-9.0-31.0-20.0-56.01824-27.027-19.0-31.0-38.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments0.0-4.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommodityContract, us-gaap:OtherIncome


Gain
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-1.017-2.03.02.00.03.02.0-1.0-5.03.05.04.01.0-1.0-1.01.0
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments0.0-5.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommodityContract, us-gaap:Sales


Gain
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-100.0-279.033-50.047734.0451951-29.0-20.043-43.0175251
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments0.091.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GainLossOnSaleOfOilAndGasProperty us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments

us-gaap:GainLossOnSaleOfOilAndGasProperty

us-gaap:OperatingSegments, cop:BarossaProject, cop:AsiaPacificOperatingSegment


Gain
Period End2021-03-31
Value200
Percentage of GainLossOnSaleOfOilAndGasProperty100.0

us-gaap:GainLossOnSaleOfOilAndGasProperty us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

cop:FosterCreekChristinaLakeFcclAndWesternCanadaGasProperties


Gain
Period End2021-03-312020-03-31
Value260.0
Percentage of GainLossOnSaleOfOilAndGasProperty13.00.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value59233-2.0-3.0596-42.08217858217888113557.0332461876221585112823469185252784.07.09.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillImpairmentLoss us-gaap:BusinessAcquisition

us-gaap:GoodwillImpairmentLoss

cop:ConchoResourcesInc


Goodwill
Period End2021-03-31
Value1900
Percentage of GoodwillImpairmentLoss100.0

us-gaap:ImpairmentOfOilAndGasProperties us-gaap:BusinessAcquisition

us-gaap:ImpairmentOfOilAndGasProperties

cop:ConchoResourcesInc


Impairment
Period End2021-03-31
Value10500
Percentage of ImpairmentOfOilAndGasProperties100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value139122863577234128290173188307294265208198196178200181-60.080-149.0-31.0223258205521764672572654709494362487409529122060212981160101717310041088868
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-236.0-81.0-195.0-46.0-373.0-31.0-334.0102-338.0-24.0-163.0105-128.03439727843115-192.030-252.0-180.038121-80.0257347450-1131.023735719929195150-172.0423-315.0299570523-569.0453686503
Percentage of IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsBeforeIncomeTax us-gaap:ConsolidationItems, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsBeforeIncomeTax

us-gaap:OperatingSegments, cop:Niobrara, cop:LowerFortyEightSegment


Income
Period End2020-09-302019-09-30
Value2.0-2.0
Percentage of IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsBeforeIncomeTax100.0100.0

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-87.0-65.019633-117.0346-85.0-103.0-39.0-29.0-15.057117-17.00.024550.00.0
Percentage of IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0

us-gaap:IncreaseDecreaseInCommodityContractAssetsAndLiabilities us-gaap:BusinessAcquisition

us-gaap:IncreaseDecreaseInCommodityContractAssetsAndLiabilities

cop:ConchoResourcesInc


Increase
Period End2021-03-31
Value692
Percentage of IncreaseDecreaseInCommodityContractAssetsAndLiabilities100.0

us-gaap:IncreaseDecreaseInCommodityContractAssetsAndLiabilities us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk

cop:ConchoResourcesInc, us-gaap:CommodityContract


Increase
Period End2021-03-31
Value692
Percentage of IncreaseDecreaseInCommodityContractAssetsAndLiabilities100.0

cop:ConchoResourcesIncorporated, us-gaap:CommodityContract


Increase
Period End2021-06-302021-03-31
Value69692
Percentage of IncreaseDecreaseInCommodityContractAssetsAndLiabilities0.0100.0

us-gaap:IncreaseDecreaseInCommodityContractAssetsAndLiabilities us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

us-gaap:ScenarioPlan, cop:ConchoResourcesInc, cop:AcceleratedContracts, us-gaap:SubsequentEvent


Increase
Period End2021-06-30
Value69
Percentage of IncreaseDecreaseInCommodityContractAssetsAndLiabilities0.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes us-gaap:BusinessAcquisition

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

cop:ConchoResourcesInc


Increase
Period End2021-03-31
Value1100
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0

us-gaap:IncreaseDecreaseInPensionPlanObligations us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:IncreaseDecreaseInPensionPlanObligations

country:US, us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit


Increase
Period End2020-09-30
Value78
Percentage of IncreaseDecreaseInPensionPlanObligations100.0

us-gaap:IncreaseDecreaseInPensionPlanObligations us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:PensionPlansDefinedBenefit


Increase
Period End2021-06-302021-03-31
Value-30.0-76.0
Percentage of IncreaseDecreaseInPensionPlanObligations0.00.0

us-gaap:IncreaseDecreaseInPensionPlanObligations us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Increase
Period End2021-03-31
Value-76.0
Percentage of IncreaseDecreaseInPensionPlanObligations0.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value34543-125.0-100.07079-66.0-120.0211-62.04.0-97.012622-81.0-123.0145-10.0-59.0-97.060-9.016-102.081-234.01.0-49.022117-89.0-64.0105131-57.0-202.0-321.067-250.0-8.018546-502.0370-309.0398
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.0785611614-705.0-1041.0-172.0128-282.0-179.0-382.0602-316.0-139.0951248-235.0-78.0292-15.0-548.0-549.0103-494.0-51.0-1368.0-593.0-554.0-370.029078-163.0-410.0-249.0621420-529.09131632629968127503486.0-677.0
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInRestructuringReserve

us-gaap:IncreaseDecreaseInRestructuringReserve


Increase
Period End2021-06-302021-03-31
Value1.0101
Percentage of IncreaseDecreaseInRestructuringReserve100.0100.0

us-gaap:InterestIncomeRelatedParty

us-gaap:InterestIncomeRelatedParty


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.01.01.02.02.03.03.04.04.04.03.04.03.03.03.03.03.03.0
Percentage of InterestIncomeRelatedParty0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueAdjustment us-gaap:BusinessAcquisition

us-gaap:LiabilitiesFairValueAdjustment

cop:ConchoResourcesInc


Liabilities
Period End2021-01-15
Value800
Percentage of LiabilitiesFairValueAdjustment100.0

cop:ConchoResourcesIncorporated


Liabilities
Period End2021-01-15
Value800
Percentage of LiabilitiesFairValueAdjustment100.0

us-gaap:LitigationSettlementAmountAwardedFromOtherParty us-gaap:ConsolidatedEntities

us-gaap:LitigationSettlementAmountAwardedFromOtherParty

cop:TheLouisianaLandAndExplorationCompanyLlc


Litigation
Period End2020-07-31
Value90
Percentage of LitigationSettlementAmountAwardedFromOtherParty100.0

us-gaap:LitigationSettlementAmountAwardedFromOtherParty us-gaap:ConsolidatedEntities, us-gaap:LitigationCase

cop:TheLouisianaLandAndExplorationCompanyLlc, cop:SeveralLouisianaParishesAndTheStateOfLouisianaAgainstOilAndGasCompanies


Litigation
Period End2020-07-31
Value90
Percentage of LitigationSettlementAmountAwardedFromOtherParty100.0

us-gaap:LitigationSettlementAmountAwardedFromOtherParty us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType

cop:TheLouisianaLandAndExplorationCompanyLlc, us-gaap:SubsequentEvent


Litigation
Period End2020-07-31
Value90
Percentage of LitigationSettlementAmountAwardedFromOtherParty100.0

us-gaap:LossContingencyDamagesSoughtValue us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyDamagesSoughtValue

us-gaap:PerformanceGuarantee


Loss
Period End2021-05-10
Value200
Percentage of LossContingencyDamagesSoughtValue100.0

us-gaap:MinorityInterestDecreaseFromRedemptions

us-gaap:MinorityInterestDecreaseFromRedemptions


Minority
Period End2020-09-302020-06-30
Value0.084
Percentage of MinorityInterestDecreaseFromRedemptions0.0100.0

us-gaap:MinorityInterestDecreaseFromRedemptions us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2020-09-302020-06-30
Value0.084
Percentage of MinorityInterestDecreaseFromRedemptions0.0100.0

us-gaap:NumberOfOperatingSegments

us-gaap:NumberOfOperatingSegments


Number
Period End2020-12-31
Value0
Percentage of NumberOfOperatingSegments0.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value9669511188309-799.020624771175-423.059-359.078-134.050927184-724.0-82.0-224.01183-706.0-2544.0796-2745.0-2038.0-1947.0668-222.0-1000.0623-1684.0-644.0-315.0925-513.0852636-2486.0549914
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-10.0-9.0-8.0-8.0-8.0-8.0-9.0-8.0-10.0-8.0-10.0-10.0-10.0-10.0-10.0-9.0-10.0-9.0-10.0-7.0-9.0-9.0-10.0-5.0-3.0-1.0-1.0-2.0-1.0-2.0-1.0-1.0-2.0-1.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-06-302021-03-31
Value0-1000000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax0.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-2000000.00-2000000.02000000.01000000.0-1000000.0000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax100.00.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-64.0-70.06231-7.0-11.0-93.072-17.0-13.0201-136.0-93.0-11.0-48.0-35.0-16.0-48.030-9.01.082-590.0-35.0-161.0-32.0501-19.0-19.0-26.0-279.0-251.0-36.0-35.06315025-51.0736-48.038
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302011-12-312011-09-30
Value3075-137.0-78.00.05.094-149.00.00.0-295.0187-42.00.04513-32.0-7.0-150.0-31.0-69.0-231.0808-231.015-840.00.00.03863011.0-234.0-432.038-1185.00.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-19.0-21.01710.0-3.0-4.0-22.030-5.0-5.060-74.0-25.0-3.0-29.0-18.0-8.0-26.027-2.03.050-332.0-18.0-93.0-17.0315-11.0-12.0-11.0-190.0-155.0-20.0-22.065942.0-29.0444-29.0-20.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-63000000.0-25000000.0-36000000.0-45000000.0-18000000.0-18000000.0-32000000.0-56000000.0-32000000.0-26000000.0-51000000.0-33000000.0-171000000.0-24000000.0-42000000.0-49000000.0-66000000.0-90000000.0-80000000.0-47000000.0-74000000.0-108000000.0-125000000.0-126000000.0-102000000.0-50000000.0-33000000.0-32000000.0-33000000.0-33000000.0-74000000.0-106000000.0-57000000.0-57000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-42.0-12.0118-30.0-8.0-8.0154-36.0-17.0-13.0344-17.0-127.0-11.0-19.0-26.0-36.0-53.0-47.0-27.0-42.0-63.0-78.0-77.0-64.0-32.0-140.0-19.0-20.0-20.0-317.0-65.0-36.0-35.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value113.02.07.02.02.01.0125.05.07.06.0343.013142028231323363744351710.011121122402022
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302013-09-302013-06-302012-09-302012-06-302011-12-312011-09-30
Value0.0-1.0-1.00.06.0-3.00.00.00.00.00.0-185.0551-424.00.00.00.00.00.00.01.0-16.00.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax0.0100.0100.00.0100.0100.00.00.00.00.00.0100.0100.0100.00.00.00.00.00.00.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302013-09-302013-06-302012-09-302012-06-302011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0-1.00.00.04.0-2.00.00.00.00.00.0-140.0506-424.00.00.00.00.00.00.01.00.00.00.0-158.0-265.0423
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax0.0100.00.00.0100.0100.00.00.00.00.00.0100.0100.0100.00.00.00.00.00.00.0100.00.00.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax


Other
Period End2020-09-302020-06-302019-06-302018-09-302017-09-302016-09-302013-09-302013-06-302012-09-302012-06-302011-12-312011-09-30
Value0.02.00.00.0450.00.00.00.00.00.00.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax0.0100.00.00.0100.00.00.00.00.00.00.00.0

us-gaap:OtherNonoperatingExpense

us-gaap:OtherNonoperatingExpense


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value246.020-7.0-6.07.036148.02510.01431971751234682770.0
Percentage of OtherNonoperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-107.0-581.02315640-284.0-180.0-426.0170-564.041415-267.029-62.0-542.0222-47.0-35.0-33.0109-126.0580195-321.0-133.0303-344.0-308.0116-91.020617-503.0-510.0-46.0504-404.0-143.036-67.0-185.0-28.0322
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302020-06-30
Value457594
Percentage of OtherOperatingIncomeExpenseNet100.0100.0

us-gaap:PaymentsForProceedsFromInvestments

us-gaap:PaymentsForProceedsFromInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1801.0499-431.0599593522451804841.0
Percentage of PaymentsForProceedsFromInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-04-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-80.0-6.0-5.0-4.0-9.044-38.0272-276.0150-138.0-41.0-367.039215125-47.0-135.0-129.063-55.0-2.0-4.0-8.0-7.0-300.09.0-8.0550-50.0-46.01615.02521-644.0-157.0-13.0-7.0-296.0-177.093-12.0-120.0-123.012-3.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-06-302021-03-31
Value5833
Percentage of PaymentsForRestructuring100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:OperatingSegments, cop:AdditionalMontneyAcreage, cop:CanadaSegment


Payments
Period End2020-08-31
Value382
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:ScenarioPlan, cop:ConchoResourcesIncorporated, us-gaap:SubsequentEvent


Payments
Period End2020-10-19
Value9700
Percentage of PaymentsToAcquireBusinessesGross0.0

us-gaap:PaymentsToAcquireLongtermInvestments

us-gaap:PaymentsToAcquireLongtermInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value89605463651430.00.0
Percentage of PaymentsToAcquireLongtermInvestments100.0100.0100.0100.0100.0100.00.00.0

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:PaymentsToAcquireShortTermInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value20073432277326413598342330089127322502488746252061618204727092434910512973020.00.00.00.00.03842822102640.07423994-994.00.0497-102.0-11204.024612101
Percentage of PaymentsToAcquireShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:PensionExpenseReversalOfExpenseNoncash us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:PensionExpenseReversalOfExpenseNoncash

country:US, us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-09-30
Value27
Percentage of PensionExpenseReversalOfExpenseNoncash100.0

us-gaap:ProceedsFromCollectionOfLongtermLoansToRelatedParties

us-gaap:ProceedsFromCollectionOfLongtermLoansToRelatedParties


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.0520.0500.0660.0650.0620.0600.0590.0580.0570.0550.0530.0530.05246066156215591457145210.03810.03810.040
Percentage of ProceedsFromCollectionOfLongtermLoansToRelatedParties0.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromCustomers

us-gaap:ProceedsFromCustomers


Proceeds
Period End2021-06-302021-03-31
Value07000000.0
Percentage of ProceedsFromCustomers0.0100.0

us-gaap:ProceedsFromIssuanceOfCommercialPaper

us-gaap:ProceedsFromIssuanceOfCommercialPaper


Proceeds
Period End2020-09-30
Value300
Percentage of ProceedsFromIssuanceOfCommercialPaper100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3.0-4.09.0-3.00.07960-18.02.0-2.0-17.0-46.0-11.0-7.0-3.0-42.0-13.0-23.0-12.0-34.08.0-19.078-32.08.0175.0-10.055389.036-13.010.024757424269.0
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLegalSettlements us-gaap:ConsolidatedEntities, us-gaap:LitigationCase

us-gaap:ProceedsFromLegalSettlements

cop:TheLouisianaLandAndExplorationCompanyLlc, cop:SeveralLouisianaParishesAndTheStateOfLouisianaAgainstOilAndGasCompanies


Proceeds
Period End2020-09-30
Value90
Percentage of ProceedsFromLegalSettlements100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.02.01.01.0-4.0-24.0-46.0-18.0-41.0-14.0-12.0-63.0-16.0-32.0-32.0-16.0-48.0-16.0-44.0-14.0-41.0-38.0-28.0-15.0-17.0-18.0-44.08.0-11.0-17.0-3028.0-202.0-186.0-205.0-178.0-178.0-115.0-254.0-143.0-185.0-174.0-183.0-165.0-189.0-169.0-186.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value17314712410912663
Percentage of ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfProductiveAssets


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value177-17.05.0-1.076454992221955914268886139169120299810707358675622813516292912117316913711548
Percentage of ProceedsFromSaleOfProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType

us-gaap:ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets

cop:LowerFortyEightSegment, us-gaap:SubsequentEvent


Proceeds
Period End2021-07-31
Value200
Percentage of ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets100.0

us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty

us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty


Related
Period End2021-06-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value3.00.00.00.01721252524232625232626252427252522475248484941929343
Percentage of RelatedPartyTransactionPurchasesFromRelatedParty100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty

us-gaap:RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty


Related
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value632616121519141413161520161412152012166.0181718215252524346524140
Percentage of RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfDebt


Repayments
Period End2021-03-312020-03-312019-03-312018-03-312017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value2624192888300083964574504847
Percentage of RepaymentsOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges us-gaap:BusinessAcquisition

us-gaap:RestructuringCharges

cop:ConchoResourcesInc


Restructuring
Period End2021-03-31
Value134
Percentage of RestructuringCharges100.0

cop:ConchoResourcesIncorporated


Restructuring
Period End2021-06-30
Value23
Percentage of RestructuringCharges0.0

us-gaap:RestructuringCharges us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

cop:ConchoResourcesInc, cop:ExplorationExpense


Restructuring
Period End2021-03-31
Value4.0
Percentage of RestructuringCharges3.0

cop:ConchoResourcesInc, us-gaap:OperatingExpense


Restructuring
Period End2021-03-31
Value56
Percentage of RestructuringCharges41.8

cop:ConchoResourcesInc, us-gaap:OtherExpense


Restructuring
Period End2021-03-31
Value29
Percentage of RestructuringCharges21.6

cop:ConchoResourcesInc, us-gaap:SellingGeneralAndAdministrativeExpenses


Restructuring
Period End2021-03-31
Value45
Percentage of RestructuringCharges33.6

us-gaap:StockIssuedDuringPeriodValueAcquisitions

us-gaap:StockIssuedDuringPeriodValueAcquisitions


Stock
Period End2021-06-302021-03-31
Value0.013125
Percentage of StockIssuedDuringPeriodValueAcquisitions0.0100.0

us-gaap:StockIssuedDuringPeriodValueAcquisitions us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-31
Value0.013122
Percentage of StockIssuedDuringPeriodValueAcquisitions0.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-31
Value0.03.0
Percentage of StockIssuedDuringPeriodValueAcquisitions0.00.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312012-12-312012-09-30
Value592320345244293245-2.02111210420259114
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312012-12-312012-09-30
Value592320345244293245-2.02111210420194114
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.074.9100.0

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value0.01.0-8.01.0-1.02.0-2.01.0-3.03.0-265.0-1.0-3.0109-995.01088-332.0236-931.0-19.0-162.011103978-2417.01056-2620.01106-1838.0868-136.00.00.0-1134.011151067-2773.07519622619-1244.0279
Percentage of StockholdersEquityOther0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312010-09-30
Value-2.02.0-2.01.0-1.00.0-2.01.0-6.00.0-2.00.00.01.00.0-1.01.0-1.01.0-2.00.00.01.00.0
Percentage of StockholdersEquityOther25.0200.0200.050.050.00.066.733.32.3-0.066.70.00.0-0.30.00.1-5.30.60.1-0.1-0.00.0-0.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302012-12-312012-09-30
Value0.01.0-5.01.0-1.0-1.00.0-1.01.0-1.0-1.0-1.00.00.0
Percentage of StockholdersEquityOther0.0100.062.5100.0100.050.00.033.333.30.4100.033.30.00.0

us-gaap:TreasuryStock


Stockholders
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2.0-2.01.01.0-2.01.0
Percentage of StockholdersEquityOther200.0200.050.0100.066.733.3

us-gaap:TaxesExcludingIncomeAndExciseTaxes

us-gaap:TaxesExcludingIncomeAndExciseTaxes


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value381370184179141250247237194275280312273183205175198231201161197180246206225224332493612651
Percentage of TaxesExcludingIncomeAndExciseTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-12-312020-10-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6063751662000.00.07267497491250752926927646500
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6063751660.00.07267497491250752926927646500
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition us-gaap:BusinessAcquisition

us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition

cop:ConchoResourcesInc


Unrecognized
Period End2021-03-31
Value150
Percentage of UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition100.0

cop:AROAndAccruedEnvironmentalCosts

cop:AROAndAccruedEnvironmentalCosts


A
Period End2020-12-312019-12-312018-12-312017-12-31
Value5753637780867978
Percentage of AROAndAccruedEnvironmentalCosts100.0100.0100.0100.0

cop:AROAndAccruedEnvironmentalCostsLongTerm

cop:AROAndAccruedEnvironmentalCostsLongTerm


A
Period End2020-12-312019-12-312018-12-312017-12-31
Value5430535276887631
Percentage of AROAndAccruedEnvironmentalCostsLongTerm100.0100.0100.0100.0

cop:AccruedEnviornmentalCostsDiscounted

cop:AccruedEnviornmentalCostsDiscounted


Accrued
Period End2020-12-31
Value106
Percentage of AccruedEnviornmentalCostsDiscounted100.0

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value581957825430565154655316535260875996773076887554766577897631
Percentage of AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cop:AdditionalMontneyAcreage, cop:CanadaSegment


Asset
Period End2020-08-31
Value77
Percentage of AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent0.0

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostsDueWithinOneYear

cop:AssetRetirementObligationsAndAccruedEnvironmentalCostsDueWithinOneYear


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-323.0-1025.0-398.0-347.0227589636541581513-571.0-599.0
Percentage of AssetRetirementObligationsAndAccruedEnvironmentalCostsDueWithinOneYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:BalanceOutstandingOnCreditFacility us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

cop:BalanceOutstandingOnCreditFacility

cop:AustraliaPacificLNG


Balance
Period End2020-12-31
Value6200
Percentage of BalanceOutstandingOnCreditFacility100.0

cop:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableShares us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableShares

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-01-15
Value286
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableShares100.0

cop:BusinessCombinationNotesOfferedInExchange us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:BusinessCombinationNotesOfferedInExchange

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-02-04
Value3900
Percentage of BusinessCombinationNotesOfferedInExchange100.0

cop:BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt us-gaap:BusinessAcquisition

cop:BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt

cop:ConchoResourcesInc


Business
Period End2021-02-08
Value98.0
Percentage of BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt100.0

cop:ConchoResourcesIncorporated


Business
Period End2021-03-31
Value98.0
Percentage of BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt0.0

cop:BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-02-04
Value98.0
Percentage of BusinessCombinationPercentOfNotesOfferedTenderedAndExchangedForNewDebt0.0

cop:BusinessCombinationPercentOfOutstandingSharesUponCompletion

cop:BusinessCombinationPercentOfOutstandingSharesUponCompletion


Business
Period End2021-01-15
Value21.0
Percentage of BusinessCombinationPercentOfOutstandingSharesUponCompletion100.0

cop:BusinessCombinationShareExchangeRatio

cop:BusinessCombinationShareExchangeRatio


Business
Period End2021-01-15
Value1.46
Percentage of BusinessCombinationShareExchangeRatio100.0

cop:BusinessCombinationShareExchangeRatio us-gaap:BusinessAcquisition

cop:ConchoResourcesIncorporated


Business
Period End2021-01-15
Value1.46
Percentage of BusinessCombinationShareExchangeRatio100.0

cop:BusinessCombinationShareExchangeRatio us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-01-15
Value1.46
Percentage of BusinessCombinationShareExchangeRatio100.0

cop:BusinessCombinationTenderedAndExchangedNotesForNewDebt us-gaap:BusinessAcquisition

cop:BusinessCombinationTenderedAndExchangedNotesForNewDebt

cop:ConchoResourcesInc


Business
Period End2021-02-08
Value3800
Percentage of BusinessCombinationTenderedAndExchangedNotesForNewDebt100.0

cop:ConchoResourcesIncorporated


Business
Period End2021-03-31
Value3800
Percentage of BusinessCombinationTenderedAndExchangedNotesForNewDebt0.0

cop:BusinessCombinationTenderedAndExchangedNotesForNewDebt us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cop:ConchoResourcesInc, us-gaap:SubsequentEvent


Business
Period End2021-02-04
Value3800
Percentage of BusinessCombinationTenderedAndExchangedNotesForNewDebt0.0

cop:CashAndCashEquivalentsAtFairValue us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization

cop:CashAndCashEquivalentsAtFairValue

us-gaap:CommercialPaper, cop:RemainingMaturitiesWithinOneYear


Cash
Period End2020-12-312019-12-31
Value138.0
Percentage of CashAndCashEquivalentsAtFairValue100.0100.0

cop:CashAndCashEquivalentsAtFairValue us-gaap:InvestmentSecondaryCategorization

cop:RemainingMaturitiesWithinOneYear


Cash
Period End2020-12-312019-12-31
Value139.0
Percentage of CashAndCashEquivalentsAtFairValue100.0112.5

cop:CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest

cop:CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6560278829782487290338895079
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest100.0100.0100.0100.0100.0100.0100.0

cop:CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest us-gaap:CashAndCashEquivalents

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value899636597545575550759
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest13.722.820.021.919.814.114.9

us-gaap:DemandDeposits


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value154112811133118291713871483
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest23.545.938.047.531.635.729.2

cop:CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk

us-gaap:BankTimeDeposits, cop:RemainingMaturities1To90Days


Cash
Period End2021-06-302020-12-312020-09-302020-06-302019-12-31
Value4104122575513962030
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest62.641.130.448.140.0

us-gaap:BankTimeDeposits, cop:Remainingmaturities1to90days


Cash
Period End2021-03-312020-12-312020-03-312019-12-31
Value861122519352030
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest30.941.149.840.0

us-gaap:USGovernmentDebtSecurities, cop:RemainingMaturities1To90Days


Cash
Period End2021-06-302020-12-312020-09-302020-06-302019-12-31
Value16235.015394
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest0.20.80.20.57.8

us-gaap:USGovernmentDebtSecurities, cop:Remainingmaturities1to90days


Cash
Period End2021-03-312020-12-312020-03-312019-12-31
Value10.02317394
Percentage of CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest0.40.80.47.8

cop:CashAndCashEquivalentsCarriedatCostPlusAccruedInterest

cop:CashAndCashEquivalentsCarriedatCostPlusAccruedInterest


Cash
Period End2020-12-312019-12-312018-12-31
Value297850795915
Percentage of CashAndCashEquivalentsCarriedatCostPlusAccruedInterest100.0100.0100.0

cop:CashAndCashEquivalentsCarriedatCostPlusAccruedInterest us-gaap:CashAndCashEquivalents

us-gaap:Cash


Cash
Period End2020-12-312019-12-312018-12-31
Value597759876
Percentage of CashAndCashEquivalentsCarriedatCostPlusAccruedInterest20.014.914.8

us-gaap:DemandDeposits


Cash
Period End2020-12-312019-12-312018-12-31
Value113314830.0
Percentage of CashAndCashEquivalentsCarriedatCostPlusAccruedInterest38.029.20.0

cop:CashAndCashEquivalentsCarriedatCostPlusAccruedInterest us-gaap:CashAndCashEquivalents, us-gaap:DerivativeInstrumentRisk

us-gaap:BankTimeDeposits, cop:RemainingMaturities1To90DaysMember


Cash
Period End2020-12-312019-12-312018-12-31
Value122520303509
Percentage of CashAndCashEquivalentsCarriedatCostPlusAccruedInterest41.140.059.3

us-gaap:USGovernmentDebtSecurities, cop:RemainingMaturities1To90DaysMember


Cash
Period End2020-12-312019-12-312018-12-31
Value233941301
Percentage of CashAndCashEquivalentsCarriedatCostPlusAccruedInterest0.87.822.0

cop:DeferredTaxAssetsAssetRetirementObligationsAndAccruedEnvironmentalCosts

cop:DeferredTaxAssetsAssetRetirementObligationsAndAccruedEnvironmentalCosts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value226223392891306035144426497144833954425439713874
Percentage of DeferredTaxAssetsAssetRetirementObligationsAndAccruedEnvironmentalCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:DeferredTaxAssetsOtherFinancialAccrualsAndDeferrals

cop:DeferredTaxAssetsOtherFinancialAccrualsAndDeferrals


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value907777330166317616552297544618394465
Percentage of DeferredTaxAssetsOtherFinancialAccrualsAndDeferrals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:DeferredTaxLiabilitiesPropertiesPlantsAndEquipmentAndIntangibles

cop:DeferredTaxLiabilitiesPropertiesPlantsAndEquipmentAndIntangibles


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value77448660800496921509916378200542007918826211592034421281
Percentage of DeferredTaxLiabilitiesPropertiesPlantsAndEquipmentAndIntangibles100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cop:Equitymethodinvestmentdifferencebetweencarryingamountandunderlyingequityallocatedtoindividualexplorationandproductionlicenseareas us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

cop:Equitymethodinvestmentdifferencebetweencarryingamountandunderlyingequityallocatedtoindividualexplorationandproductionlicenseareas

cop:AustraliaPacificLNG


Equitymethodinvestmentdifferencebetweencarryingamountandunderlyingequityallocatedtoindividualexplorationandproductionlicenseareasus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value4136441009221
Percentage of Equitymethodinvestmentdifferencebetweencarryingamountandunderlyingequityallocatedtoindividualexplorationandproductionlicenseareas100.0100.0100.0100.0100.0100.0

cop:FairValueOfParticipatingInterestInAnnuityContract us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

cop:FairValueOfParticipatingInterestInAnnuityContract

us-gaap:DefinedBenefitPlanDebtSecurity, us-gaap:FairValueInputsLevel3, us-gaap:InsuranceContractRightsAndObligationsFairValueOption, country:US, us-gaap:PensionPlansDefinedBenefit


Fair
Period End2020-12-312019-12-312018-12-31
Value233235228
Percentage of FairValueOfParticipatingInterestInAnnuityContract100.0100.0100.0

cop:FairValueOfParticipatingInterestInAnnuityContract us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:FairValueInputsLevel3, us-gaap:InsuranceContractRightsAndObligationsFairValueOption, country:US, us-gaap:PensionPlansDefinedBenefit


Fair
Period End2020-12-312019-12-312018-12-31
Value949584
Percentage of FairValueOfParticipatingInterestInAnnuityContract40.340.436.8

cop:FairValueOfParticipatingInterestInAnnuityContract us-gaap:FinancialInstrument

us-gaap:InsuranceContractRightsAndObligationsFairValueOption


Fair
Period End2020-12-312019-12-312018-12-31
Value949584
Percentage of FairValueOfParticipatingInterestInAnnuityContract40.340.436.8

cop:GasAndOilAreaUndevelopedNet1 us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

cop:GasAndOilAreaUndevelopedNet1

us-gaap:OperatingSegments, cop:AdditionalMontneyAcreage, cop:CanadaSegment


Gas
Period End2020-08-31
Value140000.0
Percentage of GasAndOilAreaUndevelopedNet1100.0

cop:GasAndOilAreaUndevelopedNet1 us-gaap:ConsolidationItems, us-gaap:Ownership, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, cop:Montney, cop:CanadaSegment


Gas
Period End2020-08-31
Value295000.0
Percentage of GasAndOilAreaUndevelopedNet1210.7

cop:InvestmentInEquitySecuritiesFairValue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:InvestmentInEquitySecuritiesFairValue

cop:CenovusEnergy, us-gaap:CommonStock


Investment
Period End2021-03-31
Value1560
Percentage of InvestmentInEquitySecuritiesFairValue100.0

cop:InvestmentInEquitySecurityFairValue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:InvestmentInEquitySecurityFairValue

cop:CenovusEnergy, us-gaap:CommonStock


Investment
Period End2020-12-312019-12-31
Value12602109
Percentage of InvestmentInEquitySecurityFairValue100.0100.0

cop:CenovusEnergyInc, us-gaap:CommonStock


Investment
Period End2021-06-30
Value1800
Percentage of InvestmentInEquitySecurityFairValue0.0

cop:InvestmentOwnedCommonStockPercentOfIssuedAndOutstanding us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:InvestmentOwnedCommonStockPercentOfIssuedAndOutstanding

cop:CenovusEnergy, us-gaap:CommonStock


Investment
Period End2021-03-312021-01-042017-05-17
Value10.310.016.9
Percentage of InvestmentOwnedCommonStockPercentOfIssuedAndOutstanding100.0100.0100.0

cop:CenovusEnergyInc, us-gaap:CommonStock


Investment
Period End2021-06-30
Value9.3
Percentage of InvestmentOwnedCommonStockPercentOfIssuedAndOutstanding0.0

cop:InvestmentOwnedCommonStockPricePerShare us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialInstrument

cop:InvestmentOwnedCommonStockPricePerShare

cop:CenovusEnergy, us-gaap:CommonStock


Investment
Period End2020-12-312019-12-312017-05-17
Value6.0410.159.41
Percentage of InvestmentOwnedCommonStockPricePerShare100.0100.0100.0

cop:InvestmentsAndLongTermReceivableCarriedAtFairValue us-gaap:FinancialInstrument, us-gaap:InvestmentSecondaryCategorization

cop:InvestmentsAndLongTermReceivableCarriedAtFairValue

us-gaap:AssetBackedSecurities, cop:RemainingMaturitiesGreaterThanOneYearThroughFiveYears


Investments
Period End2020-12-312019-12-31
Value4119
Percentage of InvestmentsAndLongTermReceivableCarriedAtFairValue100.0100.0

us-gaap:CorporateDebtSecurities, cop:RemainingMaturitiesGreaterThanOneYearThroughFiveYears


Investments
Period End2020-12-312019-12-31
Value14399
Percentage of InvestmentsAndLongTermReceivableC