OVV


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostsAndExpenses

us-gaap:GeneralAndAdministrativeExpense
us-gaap:ConsolidationItems

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:InterestExpenseDebt
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OperatingExpenses
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems
us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

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

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems
us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

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

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:LongTermInvestments

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

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
dei:LegalEntity, us-gaap:FairValueByLiabilityClass

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanType

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:IncomeTaxAuthority
us-gaap:StatementGeographical

us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:Currency, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:Currency, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits
us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:StatementGeographical, us-gaap:ValuationAllowanceByDeferredTaxAsset

ovv:Acquisitions
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

ovv:AmortizationOfOptionPremiumsDuringPeriod

ovv:CompensationCostsRecordedForCashSettledTransactions

ovv:CompensationCostsRecordedForEquitySettledTransactions

ovv:ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposureBasedOnNetFairValueBasis
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
ovv:ContingentConsiderationRelatedToAssetDivestiture
dei:LegalEntity, us-gaap:ProductOrService
ovv:ContractedCapacityVolumes
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod
ovv:DebtInstrumentRepurchasedDuringPeriodFaceAmount

ovv:DefinedBenefitPlanCurtailmentsFromNetPriorServiceCostsGainLossReclassifiedFromAOCI
us-gaap:RetirementPlanType

ovv:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedNonCashAmount
us-gaap:Range, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique
ovv:FairValueInputsImpliedCommodityVolatility
us-gaap:FinancialInstrument
ovv:ForeignCurrencySettlementGainLoss

ovv:IncreaseDecreaseInCurrentPortionOfOperatingLeaseLiabilities

ovv:IncreaseDecreaseInPropertyPlantAndEquipmentAccruals

ovv:InterestExpenseRecoveryOther

ovv:InternalCostsCapitalized

ovv:NewROUOperatingLeaseAssetsAndLiabilities

ovv:NonOperatingIncomeExpenses

ovv:OperatingSubleaseIncome

ovv:OperatingSubleaseIncomeDueYearFour

ovv:OperatingSubleaseIncomeDueYearOne

ovv:OperatingSubleaseIncomeDueYearThereafter

ovv:OperatingSubleaseIncomeDueYearThree

ovv:OperatingSubleaseIncomeDueYearTwo

ovv:OperatingSubleaseIncomeUndiscountedRemainderOfFiscalYear

ovv:OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansDueToCurtailmentTax

ovv:OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansDueToCurtailmentBeforeTax

ovv:OutplacementMovingAndOtherExpenses

ovv:PercentOfAccountsReceivableAndFinancialDerivativeCreditExposuresWithInvestmentGradeCounterparties
us-gaap:CounterpartyName
ovv:PercentOfFairValueOfOutstandingInMoneyNetRiskManagementContracts

ovv:PurchasedProductCosts
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems
us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

ovv:ROUOperatingLeaseAssetsAndLiabilities
us-gaap:StatementEquityComponents
ovv:ReclassificationOfShareCapitalFromCommonStockToAdditionalPaidInCapitalDueToReorganization
ovv:DistributionHub, us-gaap:ReserveQuantitiesByTypeOfReserve
ovv:ReferencePrice

ovv:SettlementOfOtherDerivativeContracts

ovv:TransportationAndProcessingCosts
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems
us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

ovv:UnrealizedGainLossOnDerivativesExcludingForeignCurrencyDerivatives

us-gaap:AssetImpairmentCharges
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:AssetRetirementObligationAccretionExpense
us-gaap:ConsolidationItems

us-gaap:AssetRetirementObligationForeignCurrencyTranslationGainLoss

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:AssetRetirementObligationLiabilitiesSettled

us-gaap:AssetRetirementObligationRevisionOfEstimate

us-gaap:ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure

us-gaap:ContributionOfProperty
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:CurrentIncomeTaxExpenseBenefit
us-gaap:StatementGeographical
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:DebtInstrumentIncreaseAccruedInterest

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType

us-gaap:DefinedContributionPlanCostRecognized
us-gaap:RetirementPlanType

us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:IncomeStatementLocation
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNonmonetaryNotionalAmountVolume
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position

us-gaap:DirectOperatingCosts
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents
us-gaap:IncomeTaxAuthority
us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
us-gaap:StatementGeographical, us-gaap:StatementScenario, us-gaap:ValuationAllowanceByDeferredTaxAsset
us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
us-gaap:StatementGeographical, us-gaap:ValuationAllowanceByDeferredTaxAsset

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:ExtinguishmentOfDebtGainLossNetOfTax

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeasePrincipalPayments

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossRealized

us-gaap:ForeignCurrencyTransactionGainLossUnrealized
us-gaap:FinancialInstrument

us-gaap:GainLossFromPriceRiskManagementActivity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GainLossOnSaleOfDerivatives
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets
us-gaap:DerivativeInstrumentRisk
us-gaap:IncreaseDecreaseInDerivativeAssetsAndLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet

us-gaap:IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
us-gaap:MeasurementInputType
us-gaap:IncreaseDecreaseInRiskManagementAssetsAndLiabilities
us-gaap:IncomeStatementLocation
us-gaap:InterestIncomeOther

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeasesIncomeStatementSubleaseRevenue
us-gaap:ConsolidationItems

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromProductiveAssets

us-gaap:PaymentsForRestructuring
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:PaymentsToAcquireOilAndGasPropertyAndEquipment

us-gaap:PensionAndOtherPostretirementBenefitExpense
us-gaap:IncomeStatementLocation
us-gaap:RetirementPlanType

us-gaap:ProceedsFromRepaymentsOfLinesOfCredit

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
us-gaap:ConsolidationItems, us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:RepaymentsOfUnsecuredDebt
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:RestructuringCharges
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ResultsOfOperationsImpairmentOfOilAndGasProperties

us-gaap:SeveranceCosts1
us-gaap:Currency
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
us-gaap:Currency, us-gaap:AwardType
us-gaap:Currency
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:Currency, us-gaap:AwardType
us-gaap:Currency
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:Currency, us-gaap:AwardType
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:TaxesExcludingIncomeAndExciseTaxes
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:UnrealizedGainLossOnDerivatives
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation

us-gaap:UnrecognizedTaxBenefitsPeriodIncreaseDecrease

us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount

us-gaap:VariableLeaseIncome

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

ovv:AccountsReceivableAndAccruedRevenues

ovv:AccountsReceivableAndAccruedRevenuesGross

ovv:CapitalAccruals
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:StatementScenario
ovv:ContingentConsiderationReceivableRelatingToAssetDivestiture

ovv:ContractualObligationDueAfterFourthYear
us-gaap:TypeOfArrangement

ovv:DeferredIncomeTaxAssetsAlternativeMinimumTaxAndForeignTaxCredits

ovv:DeferredTaxAssetsCapitalLossAndNonCapitalCarryforwards
us-gaap:CreditFacility
ovv:EquityAdjustmentCumulativeHistoricalCeilingTestImpairment

ovv:GuaranteeBenefitsAndObligationsCurrentCarryingValue

ovv:IncreaseInValueOfDebtAcquired

ovv:LiabilityForUnvestedCashSettledShareBasedPaymentTransactions

ovv:LiabilityForVestedCashSettledShareBasedPaymentTransactions

ovv:MarketOptimizationAccruals

ovv:NetPremiumsPaidReceivedOnUnexpiredOptions
us-gaap:StatementGeographical
ovv:OperatingLossCarryforwardsIndefiniteExpirationPeriod

ovv:OtherDerivativeContractAssets
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementBasis

ovv:OutstandingDisbursements

ovv:RevolvingCreditFacilityAndCommercialPaper

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValue

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueAndNetPremiumReceived

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueNet

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueNetBeforePremiums

ovv:RoyaltyAndProductionAccruals
us-gaap:Currency, us-gaap:AwardType
ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue
us-gaap:Currency, us-gaap:AwardType
ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsRedeemed
us-gaap:Currency, us-gaap:AwardType
ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue

ovv:ShelfProspectusRemainingBorrowingCapacity
us-gaap:StatementGeographical
ovv:TaxPoolsTaxBasis

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
us-gaap:StatementGeographical

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
us-gaap:StatementGeographical

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
us-gaap:StatementGeographical

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
us-gaap:StatementGeographical

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
us-gaap:StatementGeographical

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
us-gaap:StatementGeographical

srt:ProvedDevelopedAndUndevelopedReservesNet
us-gaap:ReserveQuantitiesByTypeOfReserve
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:StatementGeographical

srt:ProvedDevelopedReservesVolume
us-gaap:ReserveQuantitiesByTypeOfReserve
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:StatementGeographical

srt:ProvedUndevelopedReserveVolume
us-gaap:ReserveQuantitiesByTypeOfReserve
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:StatementGeographical

srt:StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
us-gaap:StatementGeographical

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsReceivableGrossCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AcquisitionCostsCumulative
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligationCurrent

us-gaap:AssetRetirementObligationsNoncurrent

us-gaap:CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
us-gaap:StatementGeographical

us-gaap:CapitalizedCostsMineralInterestsInProvedProperties
us-gaap:StatementGeographical

us-gaap:CapitalizedCostsMineralInterestsInUnprovedProperties
us-gaap:StatementGeographical

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:StatementGeographical

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesGross
us-gaap:StatementGeographical

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesNet
us-gaap:StatementGeographical

us-gaap:CapitalizedCostsProvedProperties

us-gaap:CapitalizedCostsUnprovedProperties

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:CommercialPaperNoncurrent

us-gaap:CommonStockValueOutstanding

us-gaap:ContractualObligation
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationDueAfterFifthYear
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationDueInFifthYear
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationDueInFourthYear
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationDueInNextTwelveMonths
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationDueInSecondYear
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationDueInThirdYear
us-gaap:TypeOfArrangement

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear
us-gaap:TypeOfArrangement

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentRepurchasedFaceAmount
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DeferredCompensationLiabilityCurrent

us-gaap:DeferredCompensationShareBasedArrangementsLiabilityCurrent

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityClassifiedNoncurrent

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent

us-gaap:DeferredIncomeTaxLiabilities
us-gaap:StatementGeographical

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:InvestmentType
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeAssetFairValueGrossLiability

us-gaap:DerivativeAssets

us-gaap:DerivativeAssetsCurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeAssetsNoncurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeAverageForwardExchangeRate1
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:OpenOptionContractsWrittenType, us-gaap:Position
us-gaap:DerivativeAveragePriceRiskOptionStrikePrice
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilitiesCurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeLiabilityFairValueGrossAsset

us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeSwapTypeAverageFixedPrice
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:Currency, us-gaap:AwardType

us-gaap:ExplorationCostsCumulative
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

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:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization

us-gaap:ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet

us-gaap:GuaranteeObligationsCurrentCarryingValue
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementBasis

us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:IncomeTaxesReceivable

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical, us-gaap:CreditFacility

us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LongtermDebtType
us-gaap:LongtermDebtWeightedAverageInterestRate

us-gaap:NontradeReceivablesNoncurrent
us-gaap:StatementGeographical
us-gaap:OperatingLossCarryforwards
us-gaap:StatementGeographical, us-gaap:IncomeTaxAuthority

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherSundryLiabilitiesNoncurrent
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PrepaidExpenseCurrent

us-gaap:PriceRiskDerivativesAtFairValueNet
us-gaap:ReserveQuantitiesByTypeOfReserve
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:FinancialInstrument

us-gaap:PropertyPlantAndEquipmentOther
us-gaap:Range, us-gaap:CreditFacility
us-gaap:RatioOfIndebtednessToNetCapital1

us-gaap:ReceivablesLongTermContractsOrPrograms

us-gaap:RestructuringAndRelatedCostExpectedCost1

us-gaap:RestructuringReserve
us-gaap:Currency, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:Currency, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:Currency, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:Currency, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:Currency, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
us-gaap:Currency, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:Currency, us-gaap:AwardType
us-gaap:StatementGeographical, us-gaap:TaxCreditCarryforward
us-gaap:TaxCreditCarryforwardAmount

us-gaap:UndistributedEarningsOfForeignSubsidiaries
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:UnsecuredDebt
dei:LegalEntity
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount

Plots across concepts


IncomeStatement
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
Expenses
Income Tax Expense Benefit
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Derivative Assets
Current Assets
Other Assets Current
NonCurrent Assets
Long Term Investments
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Accrued Income Taxes Current
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
Stockholders Equity
Retained Earnings Accumulated Deficit
Per Share
Earnings Per Share Diluted
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
Shares
Weighted Average Number Of Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:CommonStockValue ▁▁▁▁▁▁█3.03.03.03.03.03.07061.0NANANA4656.0NANANA
us-gaap:CommonStockSharesIssued █▇▁▁▁▁▁261.1261.0259.8259.8259.8259.8259.8NANANA190.5NANANA
us-gaap:CommonStockSharesOutstanding █▇▁▁▁▁▁261.1261.0259.8259.8259.8259.8259.8NANANA190.5NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█261.1266.0NA259.8259.80.0002598NA264.6276.20.00024430000000000003NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁261.1260.1NA259.8259.80.0002598NA264.6276.20.00024430000000000003NANANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NANANA259.8259.8259.8NA264.6276.2244.3NANANANA
us-gaap:EarningsPerShareBasic ▇█▆▅▁█-0.791.19-2.36-5.85-16.871.62NANANANANANANANA
us-gaap:EarningsPerShareDiluted ▇█▆▅▁█-0.791.16-2.36-5.85-16.871.62NANANANANANANANA
us-gaap:EarningsPerShareBasicAndDiluted NANANA-5.85-16.871.62-0.020.561.22-1.05.410.2-0.790.78
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ovv:CanadianOperations▇█▅▁▁▂▅▅▅▅535.0555.0462.0359.0348.0387.0469.0464.0456.0476.0NANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ovv:UsaOperations▅▃▄▁▁▄▇▇█▃967.0882.0886.0708.0690.0914.01131.01132.01229.0829.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AllocatedShareBasedCompensationExpense ███▄▆▁▅▄▃█40.044.042.02.027.0-38.09.01.0-17.046.0NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▇█▇▅▁████▇-182.0327.0-562.0-1497.0-4293.0285.034.0143.0317.0-212.0NANANANA
us-gaap:CostsAndExpenses ▂▁▂▄█▂▁▁▁▁1813.01643.02119.02696.04785.01884.01593.01556.01517.01462.0NANANANA
us-gaap:GeneralAndAdministrativeExpense ▄▄▃▂▆▁▃▂▂█123.0122.098.079.0165.053.0100.081.081.0227.0NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▇▆▄▁▇▆▇▇▆█▆▆▇-205.0133.0-642.0-1560.0-4089.0561.0-68.0192.0497.0-306.01179.045.0-221.0160.0
us-gaap:IncomeTaxExpenseBenefit ▄▁▃▃█▆▃▄▆▃▆▄▃▄0.0-176.0-28.0-39.0294.0140.0-62.043.0161.0-61.0149.06.0-70.09.0
us-gaap:InterestExpense █▂▄▇▁▆▇██▂99.087.092.097.086.096.097.099.099.087.0NANANANA
us-gaap:InterestExpenseDebt █▂▅▇▁▅▇██▁93.084.088.091.082.089.091.093.093.082.0NANANANA
us-gaap:NetIncomeLoss ▆▇▆▅▁▇▇▇▇▆█▇▆▇-205.0309.0-614.0-1521.0-4383.0421.0-6.0149.0336.0-245.01030.039.0-151.0151.0
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▇█▆▅▁█▇██▇-205.0309.0-614.0-1521.0-4383.0421.0-6.0149.0336.0-245.0NANANANA
us-gaap:OperatingExpenses ▂▁▂▄█▂▁▁▁▁1813.01643.02119.02696.04785.01884.01593.01556.01517.01462.0NANANANA
us-gaap:OperatingIncomeLoss ▆▇▅▄▁▇▆▇▇▆█▆▆▇-121.0195.0-591.0-1506.0-4059.0759.0-28.0315.0538.0-227.01354.0119.0-116.0337.0
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▂▃▃▃▁█▃▄▄▂-689.0-388.0-276.0-320.0-843.0855.0-446.0-119.02.0-655.0NANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ovv:CanadianOperations▇█▅▂▁▂▅▅▅▅169.0205.0110.029.011.035.0120.0118.0113.0131.0NANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ovv:MarketOptimization▂█▂▃▃▁▁▂▂▃-36.01.0-36.0-32.0-32.0-42.0-41.0-38.0-37.0-29.0NANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ovv:UsaOperations██▆▅▁▇████435.0377.0-389.0-1183.0-3195.0-89.0339.0355.0447.0317.0NANANANA
 us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments,us-gaap:Subsegments,us-gaap:SubsegmentsConsolidationItems ovv:MarketOptimization,ovv:MarketingSales,us-gaap:ReportableSubsegments▂█▂▃▃▁▁▂▂▃-35.01.0-36.0-32.0-32.0-42.0-42.0-38.0-38.0-29.0NANANANA
 us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments,us-gaap:SubsegmentsConsolidationItems ovv:MarketOptimization,us-gaap:IntersubsegmentEliminations▄-1.0NANANA0.00.01.00.01.00.0NANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▆▆▇▆█▁▅▅▅▆25.019.059.026.087.0-134.0-4.0-6.04.034.0NANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆█▆██▇▅▅▆▁7.018.07.018.016.014.01.01.03.0-28.0NANANANA
us-gaap:ProfitLoss ▇█▆▅▁█▇██▇-205.0309.0-614.0-1521.0-4383.0421.0-6.0149.0336.0-245.0NANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▇▄▃▁▄▄▅▅▄█▂▁▃2473.02247.01528.01326.01023.01570.01565.01771.01848.01572.02381.01262.0983.01313.0
us-gaap:Revenues ▅▅▄▃▁█▄▅▆▃▇▃▂▃1692.01838.01528.01190.0726.02643.01565.01871.02055.01235.02381.01262.0983.01313.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:Assets ▁▂▂▂▄██13767.014534.014469.015157.016795.021505.021487.0NANANA15344.0NANANA
us-gaap:Liabilities ▁▃▄▅▅▇█9833.010400.010632.010805.010922.011314.011557.0NANANA7897.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▁▂▂▂▄██13767.014534.014469.015157.016795.021505.021487.0NANANA15344.0NANANA
us-gaap:StockholdersEquity ▁▁▁▂▃█████▅3934.04134.03837.04352.05873.010191.09930.09921.010015.010360.07447.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AssetsCurrent ▃▁▁▁▃█▅1443.01239.01247.01219.01474.02241.01869.0NANANA2676.0NANANA
us-gaap:Cash █▁▁▃▃▄▅▅▅█▆67.08.09.022.029.035.044.044.039.066.052.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅▁▁▂▂▄█122.09.010.032.039.082.0190.0NANANA1058.0NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▁▁▁▁▂▂▂▂▅█122.09.010.032.039.0103.0190.0138.0224.0534.01058.0NANANA
us-gaap:OtherAssetsCurrent NANA38.0NANANA41.0NANANA44.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:PropertyPlantAndEquipmentGross ▇█▇▄▃▁▂57887.058325.057756.056708.056125.055264.055828.0NANANA47093.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▆▄▁▁49352.048811.048306.046485.044489.040184.040637.0NANANA38121.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ▁▂▂▃▄██8535.09514.09450.010223.011636.015080.015191.0NANANA8972.0NANANA
us-gaap:LongTermInvestments NANA30.0NANANA28.0NANANA22.0NANANA
us-gaap:Goodwill █▇▇▄▃▁▅2643.02633.02625.02594.02580.02555.02611.0NANANA2553.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA991.0NANANA1047.0NANANA0.0NANANA
us-gaap:OtherAssetsNoncurrent ▄▄▄▂▂▁█1146.01143.01143.01113.01103.01088.01213.0NANANA147.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▄▄▃▂▁▆█1880.01868.01704.01615.01529.02049.02239.0NANANA1490.0NANANA
us-gaap:AccruedIncomeTaxesCurrent ▄▄██▁▁▁2.02.03.03.01.01.01.0NANANA1.0NANANA
us-gaap:LiabilitiesCurrent ██▄▁▁▃▄3366.03461.02423.01749.01653.02160.02432.0NANANA2016.0NANANA
us-gaap:LongTermDebtCurrent ▁█▁518.01118.0518.0NA0.00.00.0NANANA500.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▆▆▂▁▂▃█74.074.068.066.068.070.078.0NANANA0.0NANANA
us-gaap:OtherAccruedLiabilitiesCurrent NANA215.0NANANA534.0NANANA295.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:LongTermDebt ▁▅▆▇█▇▇5314.06418.06885.07142.07366.07006.06974.0NANANA4198.0NANANA
us-gaap:LongTermDebtNoncurrent ▁▂▅▇█▇▇4796.05300.06367.07142.07366.07006.06974.0NANANA3698.0NANANA
us-gaap:DeferredFinanceCostsNoncurrentNet NANA8.0NANANA6.0NANANA9.0NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet NANA20.025.067.0NA217.0NANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▇▆█▄▁▁▂128.0126.0129.0123.0118.0118.0119.0NANANA105.0NANANA
us-gaap:OtherLiabilitiesNoncurrent ▁▁▅▆▆▆█206.0196.0358.0377.0390.0402.0464.0NANANA1769.0NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▅▅▅▃▂▁█938.0939.0938.0912.0902.0883.0977.0NANANA0.0NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA107.0NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA91.0NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA89.0NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA88.0NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA1036.0NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:StockholdersEquity ▁▁▁▂▃█████▅3934.04134.03837.04352.05873.010191.09930.09921.010015.010360.07447.0NANANA
us-gaap:CommonStockValue ▁▁▁▁▁▁█3.03.03.03.03.03.07061.0NANANA4656.0NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ██████▁8532.08525.08531.08460.08460.08460.01402.0NANANA1358.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▂▃██-5718.0-5488.0-5773.0-5135.0-3590.0818.0421.0NANANA435.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █▇▇▅▄▁▆▄▄▅▄1117.01094.01076.01024.01000.0910.01046.01006.01012.01031.0998.0NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁7.0-6.0NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▇▆▄▁▅▆▇█▅750.0827.0719.0493.0117.0566.0730.0756.0906.0529.0NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities █▃▃▄▂▂▂▂▁▂568.0-321.0-447.0-245.0-517.0-655.0-591.0-562.0-795.0-608.0NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▄▅▅█▇▆▅▅▄-1207.0-507.0-294.0-256.0335.09.0-88.0-280.0-422.0-448.0NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▇▇▇▆▆▇▆▃▁113.0-1.0-22.0-7.0-64.0-87.052.0-86.0-310.0-524.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▂▂▂▁█▅▁▃▅▁0.0-20.0-12.0-42.0295.0140.0-46.044.0158.0-62.0NANANANA
 us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:IncomeTaxAuthority us-gaap:ForeignCountryNANANA0.00.0-1200.0NANANANANANANANA
 us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:StatementGeographical country:CA▂▂▂▂█▂▁▂▃▁0.0-20.0-5.00.0563.010.0-75.0-12.072.0-38.0NANANANA
 us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:StatementGeographical country:USNANA-7.0-41.0-267.0128.030.056.085.0-24.0NANANANA
 us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:StatementGeographical ovv:OtherCountriesNANANA-1.0-1.02.0-1.00.01.00.0NANANANA
us-gaap:DepreciationDepletionAndAmortization ▁▁▄▄▆▇██▇▃311.0308.0401.0406.0493.0534.0561.0545.0532.0377.0NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▇▆▄▁▅▆▇█▅750.0827.0719.0493.0117.0566.0730.0756.0906.0529.0NANANANA
us-gaap:NetIncomeLoss ▆▇▆▅▁▇▇▇▇▆█▇▆▇-205.0309.0-614.0-1521.0-4383.0421.0-6.0149.0336.0-245.01030.039.0-151.0151.0
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▇█▆▅▁█▇██▇-205.0309.0-614.0-1521.0-4383.0421.0-6.0149.0336.0-245.0NANANANA
us-gaap:ProfitLoss ▇█▆▅▁█▇██▇-205.0309.0-614.0-1521.0-4383.0421.0-6.0149.0336.0-245.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▃▃▄▂▂▂▂▁▂568.0-321.0-447.0-245.0-517.0-655.0-591.0-562.0-795.0-608.0NANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▂▂▂▁█▅▅▇▇383.0350.0343.0351.0252.0790.0574.0566.0750.0736.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▄▅▅█▇▆▅▅▄-1207.0-507.0-294.0-256.0335.09.0-88.0-280.0-422.0-448.0NANANANA
us-gaap:PaymentsOfDividendsCommonStock ▃▁▁▁▃▁▃▁▃█25.024.024.024.025.024.025.024.025.028.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.03.03.03.03.03.070614656
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.032.930.3

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value261261259259259259259190
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value261261259259259259259190194194
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2612662592590.00025982642760.00024430000000000003
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2612602592590.00025982642760.00024430000000000003
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value259259259264276244
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.791.19-2.36-5.85-16.871.62
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.791.16-2.36-5.85-16.871.62
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-5.85-16.871.62-0.020.561.22-1.05.410.2-0.790.78
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4044422.027-38.09.01.0-17.046
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.62.02.70.22.6-2.40.60.1-0.92.9

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3135291.019-26.05.01.0-15.032
Percentage of AllocatedShareBasedCompensationExpense77.579.569.050.070.468.455.6100.088.269.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.61.90.11.9-1.70.30.1-0.82.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9.09.0131.08.0-12.04.00.0-2.014
Percentage of AllocatedShareBasedCompensationExpense22.520.531.050.029.631.644.40.011.830.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.90.10.8-0.80.30.0-0.10.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingExpense0.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-182.0327-562.0-1497.0-4293.028534143317-212.0
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.414.6-36.8-112.9-419.618.22.28.117.2-13.5

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1813164321192696478518841593155615171462
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.373.1138.7203.3467.7120.0101.887.982.193.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1231229879165531008181227
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.05.46.46.016.13.46.44.64.414.4

us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1231229879165531008181227
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.05.46.46.016.13.46.44.64.414.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-205.0133-642.0-1560.0-4089.0561-68.0192497-306.0117945-221.0160
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.35.9-42.0-117.6-399.735.7-4.310.826.9-19.549.53.6-22.512.2

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0-176.0-28.0-39.0294140-62.043161-61.01496.0-70.09.0
Percentage of IncomeTaxExpenseBenefit0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-7.8-1.8-2.928.78.9-4.02.48.7-3.96.30.5-7.10.7

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value99879297869697999987
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.03.96.07.38.46.16.25.65.45.5

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value93848891828991939382
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.83.75.86.98.05.75.85.35.05.2

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

ovv:FivePointSeventyFiveSeniorNotes, ovv:SeniorNotesDueJanuaryThirtyTwoThousandTwentyTwo


Interest
Period End2021-06-30
Value19
Percentage of InterestExpenseDebt20.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:FivePointSeventyFiveSeniorNotes ovv:SeniorNotesDueJanuaryThirtyTwoThousandTwentyTwo0.0

ovv:FivePointSeventyFiveUnsecuredNotes, ovv:UnsecuredNotesDueJanuaryThirtyTwoThousandTwentyTwo


Interest
Period End2021-06-30
Value19
Percentage of InterestExpenseDebt20.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:FivePointSeventyFiveUnsecuredNotes ovv:UnsecuredNotesDueJanuaryThirtyTwoThousandTwentyTwo0.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-205.0309-614.0-1521.0-4383.0421-6.0149336-245.0103039-151.0151
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.313.8-40.2-114.7-428.426.8-0.48.418.2-15.643.33.1-15.411.5

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-205.0309-614.0-1521.0-4383.0421-6.0149336-245.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.313.8-40.2-114.7-428.426.8-0.48.418.2-15.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1813164321192696478518841593155615171462
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.373.1138.7203.3467.7120.0101.887.982.193.0

us-gaap:OperatingExpenses us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value13113510895181671219798246
Percentage of OperatingExpenses7.28.25.13.53.83.67.66.26.516.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.36.07.17.217.74.37.75.55.315.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpenses us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value366350352330337352349346343345
Percentage of OperatingExpenses20.221.316.612.27.018.721.922.222.623.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.815.623.024.932.922.422.319.518.621.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:CanadianOperations64.260.70.0106.5137.6100.30.091.888.275.7

us-gaap:OperatingSegments, ovv:MarketOptimization


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value784653384380382462331332286355
Percentage of OperatingExpenses43.239.718.114.18.024.520.821.318.924.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.729.125.128.737.329.421.218.715.522.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:MarketOptimization104.8100.20.0109.8109.8110.30.0112.9114.4108.9

us-gaap:OperatingSegments, ovv:UsaOperations


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5325051275189138851003792777782512
Percentage of OperatingExpenses29.330.760.270.181.253.249.749.951.535.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.522.583.4142.6379.863.950.643.942.332.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:UsaOperations46.149.60.0282.2903.5125.40.070.865.865.9

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-121.0195-591.0-1506.0-4059.0759-28.0315538-227.01354119-116.0337
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.98.7-38.7-113.6-396.848.3-1.817.829.1-14.456.99.4-11.825.7

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-689.0-388.0-276.0-320.0-843.0855-446.0-119.02.0-655.0
Percentage of OperatingIncomeLoss569.4-199.046.721.220.8112.61592.9-37.80.4288.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-27.9-17.3-18.1-24.1-82.454.5-28.5-6.70.1-41.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value169205110291135120118113131
Percentage of OperatingIncomeLoss-139.7105.1-18.6-1.9-0.34.6-428.637.521.0-57.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.89.17.22.21.12.27.76.76.18.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:CanadianOperations29.635.50.09.44.510.00.031.329.028.7

us-gaap:OperatingSegments, ovv:MarketOptimization


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-36.01.0-36.0-32.0-32.0-42.0-41.0-38.0-37.0-29.0
Percentage of OperatingIncomeLoss29.80.56.12.10.8-5.5146.4-12.1-6.912.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.50.0-2.4-2.4-3.1-2.7-2.6-2.1-2.0-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:MarketOptimization-4.80.20.0-9.2-9.2-10.00.0-12.9-14.8-8.9

us-gaap:OperatingSegments, ovv:UsaOperations


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value435377-389.0-1183.0-3195.0-89.0339355447317
Percentage of OperatingIncomeLoss-359.5193.365.878.678.7-11.7-1210.7112.783.1-139.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.616.8-25.5-89.2-312.3-5.721.720.024.220.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:UsaOperations37.737.00.0-176.6-743.0-11.10.032.437.640.8

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, ovv:MarketingSales, us-gaap:ReportableSubsegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-35.01.0-36.0-32.0-32.0-42.0-42.0-38.0-38.0-29.0
Percentage of OperatingIncomeLoss28.90.56.12.10.8-5.5150.0-12.1-7.112.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.40.0-2.4-2.4-3.1-2.7-2.7-2.1-2.1-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:MarketOptimization ovv:MarketingSales us-gaap:ReportableSubsegments0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, us-gaap:IntersubsegmentEliminations


Operating
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1.00.00.01.00.01.00.0
Percentage of OperatingIncomeLoss0.8-0.00.0-3.60.00.2-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.00.00.10.00.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:MarketOptimization us-gaap:IntersubsegmentEliminations0.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2519592687-134.0-4.0-6.04.034
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.83.92.08.5-8.5-0.3-0.30.22.2

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.0187.01816141.01.03.0-28.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.80.51.41.60.90.10.10.2-1.8

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-205.0309-614.0-1521.0-4383.0421-6.0149336-245.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.313.8-40.2-114.7-428.426.8-0.48.418.2-15.6

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2473224715281326102315701565177118481572238112629831313
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, ovv:Oil, ovv:CanadianOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.05.02.01.02.02.04.03.02.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.10.10.20.10.30.20.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.10.10.20.10.30.20.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties ovv:Oil ovv:CanadianOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, ovv:Oil, ovv:MarketOptimizationExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value602385116131159210441073860
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.317.17.69.915.513.42.86.02.13.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.317.17.69.915.513.42.86.02.13.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties ovv:Oil ovv:MarketOptimizationExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, ovv:Oil, ovv:UsaOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value861741592504307642880905947609
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.833.038.738.030.040.956.251.151.238.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.833.038.738.030.040.956.251.151.238.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties ovv:Oil ovv:UsaOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasLiquidsReserves, ovv:CanadianOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value28525620013988179219225230204
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.511.413.110.58.611.414.012.712.413.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.511.413.110.58.611.414.012.712.413.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasLiquidsReserves ovv:CanadianOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasLiquidsReserves, ovv:MarketOptimizationExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11156.00.02.02.01.02.01.03.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.70.40.00.20.10.10.10.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.70.40.00.20.10.10.10.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasLiquidsReserves ovv:MarketOptimizationExcludingIntercompanySegmentTransactions100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasLiquidsReserves, ovv:UsaOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1791581109860861229913697
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.27.07.27.45.95.57.85.67.46.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.27.07.27.45.95.57.85.67.46.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasLiquidsReserves ovv:UsaOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasReserves, ovv:CanadianOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value286317242172157172211150158255
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.614.115.813.015.311.013.58.58.516.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.614.115.813.015.311.013.58.58.516.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasReserves ovv:CanadianOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasReserves, ovv:MarketOptimizationExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value128241217210181205237181206253
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.210.714.215.817.713.115.110.211.116.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.210.714.215.817.713.115.110.211.116.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasReserves ovv:MarketOptimizationExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasReserves, ovv:UsaOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1181231017165721039510576
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.85.56.65.46.44.66.65.45.74.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.85.56.65.46.44.66.65.45.74.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasReserves ovv:UsaOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, ovv:NaturalGasGatheringAndProcessing, ovv:CanadianOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.01.02.00.01.00.01.02.02.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.00.10.00.10.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.00.10.00.10.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:NaturalGasGatheringAndProcessing ovv:CanadianOperationsExcludingIntercompanySegmentTransactions100.0100.0100.00.0100.00.0100.0100.0100.00.0

us-gaap:OperatingSegments, ovv:NaturalGasGatheringAndProcessing, ovv:MarketOptimizationExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-31
Value0.05.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:NaturalGasGatheringAndProcessing ovv:MarketOptimizationExcludingIntercompanySegmentTransactions0.0100.00.00.00.00.0

us-gaap:OperatingSegments, ovv:NaturalGasGatheringAndProcessing, ovv:UsaOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.00.01.00.00.0-1.02.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.00.0-0.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.00.0-0.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:NaturalGasGatheringAndProcessing ovv:UsaOperationsExcludingIntercompanySegmentTransactions100.00.0100.00.00.0100.0100.0100.0

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

us-gaap:OperatingSegments, ovv:CanadianOperations


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value570577443310245351432377389456
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.025.729.023.423.922.427.621.321.029.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.025.729.023.423.922.427.621.321.029.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:CanadianOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:CanadianOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value574579446312248353435380392460
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.225.829.223.524.222.527.821.521.229.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.225.829.223.524.222.527.821.521.229.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:CanadianOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:MarketOptimization


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value748652346346348419289294250326
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.229.022.626.134.026.718.516.613.520.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.229.022.626.134.026.718.516.613.520.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:MarketOptimization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:MarketOptimizationExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value741646339341342417282290245316
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.028.722.225.733.426.618.016.413.320.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.028.722.225.733.426.618.016.413.320.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:MarketOptimizationExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:UsaOperations


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11551018801670430800110110971188777
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.745.352.450.542.051.070.461.964.349.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.745.352.450.542.051.070.461.964.349.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:UsaOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:UsaOperationsExcludingIntercompanySegmentTransactions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11581022805673433800110510981190783
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.845.552.750.842.351.070.662.064.449.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.845.552.750.842.351.070.662.064.449.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:UsaOperationsExcludingIntercompanySegmentTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MajorCustomers, us-gaap:ProductOrService

ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, ovv:Oil


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1464113171063646885492810181008683
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.250.346.548.045.754.459.357.554.543.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.250.346.548.045.754.459.357.554.543.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties ovv:Oil100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasLiquidsReserves


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value475429316237150267342326367304
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.219.120.717.914.717.021.918.419.919.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.219.120.717.914.717.021.918.419.919.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasLiquidsReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties, srt:NaturalGasReserves


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value532681560453403449551426469584
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.530.336.634.239.428.635.224.125.437.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.530.336.634.239.428.635.224.125.437.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:ProductRevenuesIncludingSaleOfProductPurchasedFromThirdParties srt:NaturalGasReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

ovv:NaturalGasGatheringAndProcessing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.06.04.00.02.00.01.01.04.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.30.30.00.20.00.10.10.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.30.30.00.20.00.10.10.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:NaturalGasGatheringAndProcessing100.0100.0100.00.0100.00.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value169218381528119072626431565187120551235238112629831313
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax68.481.8100.089.771.0168.3100.0105.6111.278.6100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-558.0-253.0-168.0-225.0-662.0922-325.0-22.0100-409.0
Percentage of Revenues-33.0-13.8-11.0-18.9-91.234.9-20.8-1.24.9-33.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-22.6-11.3-11.0-17.0-64.758.7-20.8-1.25.4-26.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value535555462359348387469464456476
Percentage of Revenues31.630.230.230.247.914.630.024.822.238.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.624.730.227.134.024.630.026.224.730.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:CanadianOperations93.996.2104.3115.8142.0110.3108.6123.1117.2104.4

us-gaap:OperatingSegments, ovv:MarketOptimization


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value748654348348350420290294249326
Percentage of Revenues44.235.622.829.248.215.918.515.712.126.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.229.122.826.234.226.818.516.613.520.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:MarketOptimization100.0100.3100.6100.6100.6100.2100.3100.099.6100.0

us-gaap:OperatingSegments, ovv:UsaOperations


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value967882886708690914113111321229829
Percentage of Revenues57.248.058.059.595.034.672.360.559.867.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.139.358.053.467.458.272.363.966.552.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ovv:UsaOperations83.786.6110.6105.7160.5114.2102.7103.2103.5106.7

us-gaap:Revenues us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, ovv:MarketingSales, us-gaap:ReportableSubsegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2613216815211445104720952030208821351236
Percentage of Revenues154.4118.099.5121.4144.279.3129.7111.6103.9100.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax105.796.599.5109.0102.3133.4129.7117.9115.578.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:MarketOptimization ovv:MarketingSales us-gaap:ReportableSubsegments0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, us-gaap:IntersubsegmentEliminations


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1865.0-1514.0-1173.0-1097.0-697.0-1675.0-1740.0-1794.0-1886.0-910.0
Percentage of Revenues-110.2-82.4-76.8-92.2-96.0-63.4-111.2-95.9-91.8-73.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-75.4-67.4-76.8-82.7-68.1-106.7-111.2-101.3-102.1-57.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ovv:MarketOptimization us-gaap:IntersubsegmentEliminations0.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value137671453414469151571679521505214871519815344
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value14541380155916731827305524994093
Percentage of Assets10.69.510.811.010.914.211.626.7
Percentage of Assets10.69.510.811.010.914.211.626.7
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, ovv:CanadianOperations


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value19112123203119661945194921221852
Percentage of Assets13.914.614.013.011.69.19.912.1
Percentage of Assets13.914.614.013.011.69.19.912.1
Percentage of Assets us-gaap:OperatingSegments ovv:CanadianOperations100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:MarketOptimization


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value336223233231255272253295
Percentage of Assets2.41.51.61.51.51.31.21.9
Percentage of Assets2.41.51.61.51.51.31.21.9
Percentage of Assets us-gaap:OperatingSegments ovv:MarketOptimization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ovv:UsaOperations


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value100661080810646112871276816229166139104
Percentage of Assets73.174.473.674.576.075.577.359.3
Percentage of Assets73.174.473.674.576.075.577.359.3
Percentage of Assets us-gaap:OperatingSegments ovv:UsaOperations100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementGeographical

country:CA


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value354044575211
Percentage of Assets24.520.734.0
Percentage of Assets24.520.734.0
Percentage of Assets country:CA100.0100.0100.0

country:US


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value109251699610108
Percentage of Assets75.579.165.9
Percentage of Assets75.579.165.9
Percentage of Assets country:US100.0100.0100.0

ovv:OtherCountries


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-31
Value4.03425
Percentage of Assets0.00.20.2
Percentage of Assets0.00.20.2
Percentage of Assets ovv:OtherCountries100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value983310400106321080510922113141155776767897
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets71.471.673.571.365.052.653.850.551.5

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value137671453414469151571679521505214871519815344
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value3934413438374352587310191993099211001510360744767286126
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.628.426.528.735.047.446.20.00.00.048.50.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value11171094107610241000910104610061012103199810421210
Percentage of StockholdersEquity28.426.528.023.517.08.910.510.110.110.013.415.519.8
Percentage of Assets8.17.57.46.86.04.24.90.00.00.06.50.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value8532852585318460846084601402140213581358135813581358
Percentage of StockholdersEquity216.9206.2222.3194.4144.083.014.114.113.613.118.220.222.2
Percentage of Assets62.058.759.055.850.439.36.50.00.00.08.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value3.03.03.03.03.03.07061706173187827465647574756
Percentage of StockholdersEquity0.10.10.10.10.10.071.171.273.175.662.570.777.6
Percentage of Assets0.00.00.00.00.00.032.90.00.00.030.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-5718.0-5488.0-5773.0-5135.0-3590.0818421452327144435-429.0-1198.0
Percentage of StockholdersEquity-145.3-132.8-150.5-118.0-61.18.04.24.63.31.45.8-6.4-19.6
Percentage of Assets-41.5-37.8-39.9-33.9-21.43.82.00.00.00.02.80.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value14431239124712191474224118692676
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.58.58.68.08.810.48.717.4

Cash

us-gaap:Cash

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value678.09.0222935444439665251
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.10.10.10.20.20.20.00.00.00.30.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1229.010.03239821901058
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.10.10.20.20.40.96.9

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value1229.010.032391031901382245341058719834
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.10.10.20.20.50.90.00.00.06.90.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2020-12-312019-12-312018-12-31
Value384144
Percentage of OtherAssetsCurrent100.0100.0100.0
Percentage of Assets0.30.20.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value578875832557756567085612555264558284583247093
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets420.5401.3399.2374.1334.2257.0259.8301.6306.9

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:CorporateNonSegment, us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value8858748658338778529142136
Percentage of PropertyPlantAndEquipmentGross1.51.51.51.51.61.51.64.5
Percentage of Assets6.46.06.05.55.24.04.313.9
Percentage of Assets us-gaap:CorporateNonSegment us-gaap:OtherCapitalizedPropertyPlantAndEquipment0.00.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:ProvedProperties, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1649616316160081522714793141721528413996
Percentage of PropertyPlantAndEquipmentGross28.528.027.726.926.425.627.429.7
Percentage of Assets119.8112.3110.6100.588.165.971.191.2
Percentage of Assets us-gaap:OperatingSegments ovv:ProvedProperties ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:ProvedProperties, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3802938287378753742637078367313587027189
Percentage of PropertyPlantAndEquipmentGross65.765.665.666.066.166.564.357.7
Percentage of Assets276.2263.4261.8246.9220.8170.8166.9177.2
Percentage of Assets us-gaap:OperatingSegments ovv:ProvedProperties ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:UnprovedProperties, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value70165177188205200223237
Percentage of PropertyPlantAndEquipmentGross0.10.30.30.30.40.40.40.5
Percentage of Assets0.51.11.21.21.20.91.01.5
Percentage of Assets us-gaap:OperatingSegments ovv:UnprovedProperties ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:UnprovedProperties, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value23742642278529803118326034913493
Percentage of PropertyPlantAndEquipmentGross4.14.54.85.35.65.96.37.4
Percentage of Assets17.218.219.219.718.615.216.222.8
Percentage of Assets us-gaap:OperatingSegments ovv:UnprovedProperties ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1110.0131314161827
Percentage of PropertyPlantAndEquipmentGross0.00.00.00.00.00.00.00.1
Percentage of Assets0.10.10.10.10.10.10.10.2
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:MarketOptimization


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value7.07.09.09.08.08.09.07.0
Percentage of PropertyPlantAndEquipmentGross0.00.00.00.00.00.00.00.0
Percentage of Assets0.10.00.10.10.00.00.00.0
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:MarketOptimization0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value152424323225198.0
Percentage of PropertyPlantAndEquipmentGross0.00.00.00.10.10.00.00.0
Percentage of Assets0.10.20.20.20.20.10.10.1
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1657716491161981542815012143881552514260
Percentage of PropertyPlantAndEquipmentGross28.628.328.027.226.726.027.830.3
Percentage of Assets120.4113.5111.9101.889.466.972.392.9
Percentage of Assets us-gaap:OperatingSegments ovv:CanadianOperations867.5776.8797.5784.7771.8738.2731.6770.0

us-gaap:OperatingSegments, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4041840953406844043840228400163938030690
Percentage of PropertyPlantAndEquipmentGross69.870.270.471.371.772.470.565.2
Percentage of Assets293.6281.8281.2266.8239.5186.1183.3200.0
Percentage of Assets us-gaap:OperatingSegments ovv:UsaOperations401.5378.9382.2358.3315.1246.6237.0337.1

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value493524881148306464854448940184406373799338121
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets358.5335.8333.9306.7264.9186.9189.1250.0248.4

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:CorporateNonSegment, us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value685676662631668643687755
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment1.41.41.41.41.51.61.72.0
Percentage of Assets5.04.74.64.24.03.03.24.9
Percentage of Assets us-gaap:CorporateNonSegment us-gaap:OtherCapitalizedPropertyPlantAndEquipment0.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:ProvedProperties, ovv:CanadianOperations


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1565015339150561426613869132151432013261
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment31.731.431.230.731.232.935.234.8
Percentage of Assets113.7105.5104.194.182.661.566.686.4
Percentage of Assets us-gaap:OperatingSegments ovv:ProvedProperties ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:ProvedProperties, ovv:UsaOperations


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3301032789325813158129945263202562324099
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment66.967.267.467.967.365.563.163.2
Percentage of Assets239.8225.6225.2208.4178.3122.4119.2157.1
Percentage of Assets us-gaap:OperatingSegments ovv:ProvedProperties ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:MarketOptimization


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value7.07.07.07.07.06.07.06.0
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment0.00.00.00.00.00.00.00.0
Percentage of Assets0.10.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:MarketOptimization0.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1565015339150561426613869132151432013261
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment31.731.431.230.731.232.935.234.8
Percentage of Assets113.7105.5104.194.182.661.566.686.4
Percentage of Assets us-gaap:OperatingSegments ovv:CanadianOperations818.9722.5741.3725.6713.1678.0674.8716.0

us-gaap:OperatingSegments, ovv:UsaOperations


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3301032789325813158129945263202562324099
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment66.967.267.467.967.365.563.163.2
Percentage of Assets239.8225.6225.2208.4178.3122.4119.2157.1
Percentage of Assets us-gaap:OperatingSegments ovv:UsaOperations327.9303.4306.0279.8234.5162.2154.2264.7

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value8535951494501022311636150801519178398972
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.065.565.367.469.370.170.751.658.5

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2001982032022092092271381
Percentage of PropertyPlantAndEquipmentNet2.32.12.12.01.81.41.515.4
Percentage of Assets1.51.41.41.31.21.01.19.0
Percentage of Assets us-gaap:CorporateNonSegment13.814.313.012.111.46.89.133.7

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:CorporateNonSegment, us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2001982032022092092271381
Percentage of PropertyPlantAndEquipmentNet2.32.12.12.01.81.41.515.4
Percentage of Assets1.51.41.41.31.21.01.19.0
Percentage of Assets us-gaap:CorporateNonSegment us-gaap:OtherCapitalizedPropertyPlantAndEquipment0.00.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:ProvedProperties, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value846977952961924957964735
Percentage of PropertyPlantAndEquipmentNet9.910.310.19.47.96.36.38.2
Percentage of Assets6.16.76.66.35.54.54.54.8
Percentage of Assets us-gaap:OperatingSegments ovv:ProvedProperties ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:ProvedProperties, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5019549852945845713310411102473090
Percentage of PropertyPlantAndEquipmentNet58.857.856.057.261.369.067.534.4
Percentage of Assets36.537.836.638.642.548.447.720.1
Percentage of Assets us-gaap:OperatingSegments ovv:ProvedProperties ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:UnprovedProperties, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value70165177188205200223237
Percentage of PropertyPlantAndEquipmentNet0.81.71.91.81.81.31.52.6
Percentage of Assets0.51.11.21.21.20.91.01.5
Percentage of Assets us-gaap:OperatingSegments ovv:UnprovedProperties ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ovv:UnprovedProperties, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value23742642278529803118326034913493
Percentage of PropertyPlantAndEquipmentNet27.827.829.529.126.821.623.038.9
Percentage of Assets17.218.219.219.718.615.216.222.8
Percentage of Assets us-gaap:OperatingSegments ovv:UnprovedProperties ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1110.0131314161827
Percentage of PropertyPlantAndEquipmentNet0.10.10.10.10.10.10.10.3
Percentage of Assets0.10.10.10.10.10.10.10.2
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:CanadianOperations0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:MarketOptimization


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2.02.01.02.02.01.0
Percentage of PropertyPlantAndEquipmentNet0.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:MarketOptimization0.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:OtherCapitalizedPropertyPlantAndEquipment, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value152424323225198.0
Percentage of PropertyPlantAndEquipmentNet0.20.30.30.30.30.20.10.1
Percentage of Assets0.10.20.20.20.20.10.10.1
Percentage of Assets us-gaap:OperatingSegments us-gaap:OtherCapitalizedPropertyPlantAndEquipment ovv:UsaOperations0.00.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value927115211421162114311731205999
Percentage of PropertyPlantAndEquipmentNet10.912.112.111.49.87.87.911.1
Percentage of Assets6.77.97.97.76.85.55.66.5
Percentage of Assets us-gaap:OperatingSegments ovv:CanadianOperations48.554.356.259.158.860.256.853.9

us-gaap:OperatingSegments, ovv:MarketOptimization


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2.02.01.02.02.01.0
Percentage of PropertyPlantAndEquipmentNet0.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:OperatingSegments ovv:MarketOptimization0.90.90.40.70.80.3

us-gaap:OperatingSegments, ovv:UsaOperations


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value74088164810388571028313696137576591
Percentage of PropertyPlantAndEquipmentNet86.885.885.786.688.490.890.673.5
Percentage of Assets53.856.256.058.461.263.764.043.0
Percentage of Assets us-gaap:OperatingSegments ovv:UsaOperations73.675.576.178.580.584.482.872.4

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:CA


Property
Period End2020-12-312019-12-312018-12-31
Value129113662303
Percentage of PropertyPlantAndEquipmentNet13.79.025.7
Percentage of Assets8.96.415.0
Percentage of Assets country:CA36.530.644.2

country:US


Property
Period End2020-12-312019-12-312018-12-31
Value8159138256669
Percentage of PropertyPlantAndEquipmentNet86.391.074.3
Percentage of Assets56.464.343.5
Percentage of Assets country:US74.781.366.0

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2020-12-312019-12-312018-12-31
Value302822
Percentage of LongTermInvestments100.0100.0100.0
Percentage of Assets0.20.10.1

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value26432633262525942580255526112553
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.218.118.117.115.411.912.216.6

us-gaap:Goodwill us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value705695687656642617673640
Percentage of Goodwill26.726.426.225.324.924.125.825.1
Percentage of Assets5.14.84.74.33.82.93.14.2
Percentage of Assets us-gaap:OperatingSegments ovv:CanadianOperations36.932.733.833.433.031.731.734.6

us-gaap:OperatingSegments, ovv:UsaOperations


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value19381938193819381938193819381913
Percentage of Goodwill73.373.673.874.775.175.974.274.9
Percentage of Assets14.113.313.412.811.59.09.012.5
Percentage of Assets us-gaap:OperatingSegments ovv:UsaOperations19.317.918.217.215.211.911.721.0

us-gaap:Goodwill us-gaap:StatementGeographical

country:CA


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value687673640696
Percentage of Goodwill26.225.825.10.0
Percentage of Assets4.73.14.20.0
Percentage of Assets country:CA19.415.112.30.0

country:US


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value1938193819131913
Percentage of Goodwill73.874.274.90.0
Percentage of Assets13.49.012.50.0
Percentage of Assets country:US17.711.418.90.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312018-12-31
Value99110470.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.00.0
Percentage of Assets6.84.90.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value11461143114311131103108812131162147
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.37.97.97.36.65.15.67.61.0

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value188018681704161515292049223914781490
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.712.911.810.79.19.510.49.79.7

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent dei:LegalEntity, us-gaap:FairValueByLiabilityClass

ovv:VeresenMidstreamLimitedPartnership, ovv:TakeOrPayCommitment


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.10.30.30.60.40.40.0
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent0.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets ovv:VeresenMidstreamLimitedPartnership ovv:TakeOrPayCommitment0.00.00.00.00.00.00.0

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value2000000.02000000.03000000.03000000.01000000.01000000.01000000.01000000.01000000.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value336634612423174916532160243220712016
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.423.816.711.59.810.011.313.613.1

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-01-012018-12-31
Value51811185180.00.00.0500500
Percentage of LongTermDebtCurrent100.0100.0100.00.00.00.0100.0100.0
Percentage of Assets3.87.73.60.00.00.03.33.3

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value74746866687078670.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.50.50.50.40.40.30.40.40.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2020-12-312019-12-312018-12-31
Value215534295
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0
Percentage of Assets1.52.51.9

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value53146418688571427366700669744198
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets38.644.247.647.143.932.632.527.4

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value47965300636771427366700669743698
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.836.544.047.143.932.632.524.1

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredFinanceCostsNoncurrentNet


Deferred
Period End2020-12-312019-12-312018-12-31
Value8000000.06000000.09000000.0
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0
Percentage of Assets0.10.00.1

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2020-12-312020-09-302020-06-302019-12-31
Value202567217
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0
Percentage of Assets0.10.20.41.0

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value128126129123118118119105
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.90.90.80.70.50.60.7

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-31
Value797867
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent61.265.563.8
Percentage of Assets0.50.40.4
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-31
Value292118
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent22.517.617.1
Percentage of Assets0.20.10.1
Percentage of Assets us-gaap:PensionPlansDefinedBenefit0.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value2061963583773904024645451769
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.32.52.52.31.92.23.611.5

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value9389399389129028839779480.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets6.86.56.56.05.44.14.56.20.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value107
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.7

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value91
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.6

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value89
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.6

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value88
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.6

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value1036
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets7.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-31
Value1006
Percentage of OperatingLeaseLiability100.0
Percentage of Assets7.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value1532
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets10.6

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value526
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets3.6

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value3934413438374352587310191993099211001510360744767286126
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.628.426.528.735.047.446.20.00.00.048.50.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value11171094107610241000910104610061012103199810421210
Percentage of StockholdersEquity28.426.528.023.517.08.910.510.110.110.013.415.519.8
Percentage of Assets8.17.57.46.86.04.24.90.00.00.06.50.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value8532852585318460846084601402140213581358135813581358
Percentage of StockholdersEquity216.9206.2222.3194.4144.083.014.114.113.613.118.220.222.2
Percentage of Assets62.058.759.055.850.439.36.50.00.00.08.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value3.03.03.03.03.03.07061706173187827465647574756
Percentage of StockholdersEquity0.10.10.10.10.10.071.171.273.175.662.570.777.6
Percentage of Assets0.00.00.00.00.00.032.90.00.00.030.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-5718.0-5488.0-5773.0-5135.0-3590.0818421452327144435-429.0-1198.0
Percentage of StockholdersEquity-145.3-132.8-150.5-118.0-61.18.04.24.63.31.45.8-6.4-19.6
Percentage of Assets-41.5-37.8-39.9-33.9-21.43.82.00.00.00.02.80.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.03.03.03.03.03.070614656
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.032.930.3

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value85328525853184608460846014021358
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.058.759.055.850.439.36.58.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value-5718.0-5488.0-5773.0-5135.0-3590.0818421510435
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-41.5-37.8-39.9-33.9-21.43.82.03.42.8

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1117109410761024100091010461006101210319981042
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.17.57.46.86.04.24.90.00.00.06.50.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-31
Value7.0-6.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0
Percentage of Assets0.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-31
Value7.0-6.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value750827719493117566730756906529
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.336.847.137.211.436.146.642.749.033.7

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value568-321.0-447.0-245.0-517.0-655.0-591.0-562.0-795.0-608.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.0-14.3-29.3-18.5-50.5-41.7-37.8-31.7-43.0-38.7

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1207.0-507.0-294.0-256.03359.0-88.0-280.0-422.0-448.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-48.8-22.6-19.2-19.332.70.6-5.6-15.8-22.8-28.5

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value113-1.0-22.0-7.0-64.0-87.052-86.0-310.0-524.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.6-0.0-1.4-0.5-6.3-5.53.3-4.9-16.8-33.3

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0-20.0-12.0-42.0295140-46.044158-62.0
Percentage of DeferredIncomeTaxExpenseBenefit0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:IncomeTaxAuthority

us-gaap:ForeignCountry


Deferred
Period End2020-09-302020-06-302020-03-31
Value0.00.0-1200.0
Percentage of DeferredIncomeTaxExpenseBenefit-0.00.0-857.1

us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:StatementGeographical

country:CA


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0-20.0-5.00.056310.0-75.0-12.072-38.0
Percentage of DeferredIncomeTaxExpenseBenefit0.0100.041.7-0.0190.87.1163.0-27.345.661.3

country:US


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-7.0-41.0-267.0128305685-24.0
Percentage of DeferredIncomeTaxExpenseBenefit58.397.6-90.591.4-65.2127.353.838.7

ovv:OtherCountries


Deferred
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1.0-1.02.0-1.00.01.00.0
Percentage of DeferredIncomeTaxExpenseBenefit2.4-0.31.42.20.00.6-0.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value311308401406493534561545532377
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.07.07.08.07.07.0137.08.011
Percentage of DepreciationDepletionAndAmortization0.62.31.72.01.41.32.31.31.52.9

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value899310899111109961009592
Percentage of DepreciationDepletionAndAmortization28.630.226.924.422.520.417.118.317.924.4

us-gaap:OperatingSegments, ovv:UsaOperations


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value220208286299375418452438429274
Percentage of DepreciationDepletionAndAmortization70.767.571.373.676.178.380.680.480.672.7

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value750827719493117566730756906529
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.336.847.137.211.436.146.642.749.033.7

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-205.0309-614.0-1521.0-4383.0421-6.0149336-245.0103039-151.0151
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.313.8-40.2-114.7-428.426.8-0.48.418.2-15.643.33.1-15.411.5

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-205.0309-614.0-1521.0-4383.0421-6.0149336-245.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.313.8-40.2-114.7-428.426.8-0.48.418.2-15.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-205.0309-614.0-1521.0-4383.0421-6.0149336-245.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.313.8-40.2-114.7-428.426.8-0.48.418.2-15.6

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value568-321.0-447.0-245.0-517.0-655.0-591.0-562.0-795.0-608.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.0-14.3-29.3-18.5-50.5-41.7-37.8-31.7-43.0-38.7

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value383350343351252790574566750736
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Payments
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.00.01.01.01.06.01.01.02.0
Percentage of PaymentsToAcquirePropertyPlantAndEquipment0.30.00.30.40.11.00.20.10.3

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10389801063316111699108157
Percentage of PaymentsToAcquirePropertyPlantAndEquipment26.925.423.330.213.120.420.217.514.421.3

us-gaap:OperatingSegments, ovv:UsaOperations


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value279261263244218628452464641577
Percentage of PaymentsToAcquirePropertyPlantAndEquipment72.874.676.769.586.579.578.782.085.578.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1207.0-507.0-294.0-256.03359.0-88.0-280.0-422.0-448.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-48.8-22.6-19.2-19.332.70.6-5.6-15.8-22.8-28.5

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value25242424252425242528
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0-132.31.42.5-0.0720.25-37.04322.40.3240.199
Percentage of EffectiveIncomeTaxRateContinuingOperations0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

ovv:TandemStockAppreciationRights


Share
Period End2020-12-312019-12-312018-12-312017-12-31
Value1586000.01606000.02073000.03054000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:Currency, us-gaap:AwardType

currency:USD, us-gaap:StockAppreciationRightsSARS


Share
Period End2020-12-312019-12-312018-12-312017-12-31
Value660000.0789000.0820000.01269000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber41.649.139.641.6

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

ovv:TandemStockAppreciationRights


Share
Period End2020-12-312019-12-312018-12-312017-12-31
Value48.2848.6567.2374.35
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:Currency, us-gaap:AwardType

currency:USD, us-gaap:StockAppreciationRightsSARS


Share
Period End2020-12-312019-12-312018-12-312017-12-31
Value38.0339.8467.0871.25
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice78.881.999.895.8

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value11000.0844000.073000.054000.02166000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0

us-gaap:PhantomShareUnitsPSUs


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value3000.08000.011000.012000.042000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod27.30.915.122.21.9

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value28000.02614000.0148000.0200000.06350000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod254.5309.7202.7370.4293.2

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-31
Value20
Percentage of DeferredTaxLiabilities100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-31
Value232222248306
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefits us-gaap:BalanceSheetLocation

ovv:DeferredIncomeTaxAssets


Unrecognized
Period End2020-12-312019-12-312018-12-31
Value746381
Percentage of UnrecognizedTaxBenefits31.928.432.7

us-gaap:OtherNoncurrentLiabilities


Unrecognized
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value158155152146159167
Percentage of UnrecognizedTaxBenefits68.10.00.00.071.667.3

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-31
Value3273215195
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:StatementGeographical, us-gaap:ValuationAllowanceByDeferredTaxAsset

country:CA, ovv:NetCapitalLosses


Deferred
Period End2020-12-31
Value1963
Percentage of DeferredTaxAssetsValuationAllowance60.0

country:US, ovv:FederalAndStateLosses


Deferred
Period End2020-12-312019-12-312018-12-31
Value13105730
Percentage of DeferredTaxAssetsValuationAllowance40.026.515.4

ovv:Acquisitions

ovv:Acquisitions


Acquisitions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.01.00.01.01.017-1.0251922
Percentage of Acquisitions100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

ovv:Acquisitions us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:UsaOperations


Acquisitionsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.01.00.01.01.017-1.0251922
Percentage of Acquisitions100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

ovv:AmortizationOfOptionPremiumsDuringPeriod

ovv:AmortizationOfOptionPremiumsDuringPeriod


Amortization
Period End2020-12-31
Value14000000.0
Percentage of AmortizationOfOptionPremiumsDuringPeriod100.0

ovv:CompensationCostsRecordedForCashSettledTransactions

ovv:CompensationCostsRecordedForCashSettledTransactions


Compensation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4240544.035-51.0132.0-20.064
Percentage of CompensationCostsRecordedForCashSettledTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:CompensationCostsRecordedForEquitySettledTransactions

ovv:CompensationCostsRecordedForEquitySettledTransactions


Compensation
Period End2021-06-302021-03-31
Value7.011
Percentage of CompensationCostsRecordedForEquitySettledTransactions100.0100.0

ovv:ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposureBasedOnNetFairValueBasis

ovv:ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposureBasedOnNetFairValueBasis


Concentration
Period End2021-06-302021-03-31
Value-5.016
Percentage of ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposureBasedOnNetFairValueBasis100.0100.0

ovv:ContingentConsiderationRelatedToAssetDivestiture us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

ovv:ContingentConsiderationRelatedToAssetDivestiture

ovv:DuvernayAssets


Contingent
Period End2021-06-30
Value6000000.0
Percentage of ContingentConsiderationRelatedToAssetDivestiture100.0

ovv:ContractedCapacityVolumes dei:LegalEntity, us-gaap:ProductOrService

ovv:ContractedCapacityVolumes

ovv:VeresenMidstreamLimitedPartnership, ovv:NaturalGasGatheringAndCompression


Contracted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value01167.00001213.0
Percentage of ContractedCapacityVolumes0.0100.00.00.00.0100.0

ovv:VeresenMidstreamLimitedPartnership, ovv:NaturalGasProcessing


Contracted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0925.0000932.0
Percentage of ContractedCapacityVolumes0.079.30.00.00.076.8

ovv:DebtInstrumentRepurchasedDuringPeriodFaceAmount us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

ovv:DebtInstrumentRepurchasedDuringPeriodFaceAmount

ovv:FivePointSeventyFiveUnsecuredNotes, ovv:UnsecuredNotesDueJanuaryThirtyTwoThousandTwentyTwo


Debt
Period End2021-06-30
Value600
Percentage of DebtInstrumentRepurchasedDuringPeriodFaceAmount100.0

ovv:DefinedBenefitPlanCurtailmentsFromNetPriorServiceCostsGainLossReclassifiedFromAOCI

ovv:DefinedBenefitPlanCurtailmentsFromNetPriorServiceCostsGainLossReclassifiedFromAOCI


Defined
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value0-5000000.004000000.0-4000000.0
Percentage of DefinedBenefitPlanCurtailmentsFromNetPriorServiceCostsGainLossReclassifiedFromAOCI0.0100.00.0100.0100.0

ovv:DefinedBenefitPlanCurtailmentsFromNetPriorServiceCostsGainLossReclassifiedFromAOCI us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value00-5000000.004000000.0-4000000.0
Percentage of DefinedBenefitPlanCurtailmentsFromNetPriorServiceCostsGainLossReclassifiedFromAOCI0.00.0100.00.0100.0100.0

ovv:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedNonCashAmount

ovv:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedNonCashAmount


Employee
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.0-9.02.08.0-17.04.01.0-3.0-29.0
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedNonCashAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:FairValueInputsImpliedCommodityVolatility us-gaap:Range, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique

ovv:FairValueInputsImpliedCommodityVolatility

srt:Maximum, ovv:WtiOptions, ovv:OptionModel


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.190.870.110.01-0.250.86
Percentage of FairValueInputsImpliedCommodityVolatility100.0100.0100.0100.0100.0100.0

srt:Minimum, ovv:WtiOptions, ovv:OptionModel


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.080.360.01-0.0200.35
Percentage of FairValueInputsImpliedCommodityVolatility-42.141.49.1-200.0-0.040.7

srt:WeightedAverage, ovv:WtiOptions, ovv:OptionModel


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-1.047.0-1.041.54-0.170.63
Percentage of FairValueInputsImpliedCommodityVolatility-526.35402.3-909.1415400.068.073.3

ovv:ForeignCurrencySettlementGainLoss us-gaap:FinancialInstrument

ovv:ForeignCurrencySettlementGainLoss

ovv:OtherMonetaryRevaluations


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2.0-4.0-3.00.0-4.08.00.0-1.0-1.0-1.0
Percentage of ForeignCurrencySettlementGainLoss100.0100.0100.00.0100.0100.00.0100.0100.0100.0

ovv:TranslationOfIntercompanyNotes


Foreign
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2.00.00.0-3.0408.01112
Percentage of ForeignCurrencySettlementGainLoss66.70.0-0.0-37.50.0-800.0-1100.0-1200.0

ovv:TranslationOfUSDollarDebtIssuedFromCanada


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.06.0142.00.0-17.03.010.0111.0
Percentage of ForeignCurrencySettlementGainLoss-150.0-150.0-466.70.0-0.0-212.50.0-1000.0-1100.0-100.0

ovv:TranslationOfUSDollarRiskManagementContractsIssuedFromCanada


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value117.06.02.0-6.0-3.02.02.0-1.00.0
Percentage of ForeignCurrencySettlementGainLoss-550.0-175.0-200.00.0150.0-37.50.0-200.0100.0-0.0

ovv:IncreaseDecreaseInCurrentPortionOfOperatingLeaseLiabilities

ovv:IncreaseDecreaseInCurrentPortionOfOperatingLeaseLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1.05.0-1.0-4.0-5.0-1.0-3.0-9.0-6.067
Percentage of IncreaseDecreaseInCurrentPortionOfOperatingLeaseLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:IncreaseDecreaseInPropertyPlantAndEquipmentAccruals

ovv:IncreaseDecreaseInPropertyPlantAndEquipmentAccruals


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-67.030-113.068-280.0150-45.0-80.0-35.082
Percentage of IncreaseDecreaseInPropertyPlantAndEquipmentAccruals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:InterestExpenseRecoveryOther

ovv:InterestExpenseRecoveryOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.01.02.04.02.04.03.03.02.02.0
Percentage of InterestExpenseRecoveryOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:InternalCostsCapitalized

ovv:InternalCostsCapitalized


Internal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value42402437494757
Percentage of InternalCostsCapitalized100.0100.0100.0100.0100.0100.0100.0

ovv:NewROUOperatingLeaseAssetsAndLiabilities

ovv:NewROUOperatingLeaseAssetsAndLiabilities


New
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.05.00.01.09.01.09.01.0
Percentage of NewROUOperatingLeaseAssetsAndLiabilities100.0100.00.0100.0100.0100.0100.0100.0

ovv:NonOperatingIncomeExpenses

ovv:NonOperatingIncomeExpenses


Non
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8462515430198401234179
Percentage of NonOperatingIncomeExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:OperatingSubleaseIncome

ovv:OperatingSubleaseIncome


Operating
Period End2021-06-302021-03-312020-12-31
Value-3.0755-27.0
Percentage of OperatingSubleaseIncome100.0100.0100.0

ovv:OperatingSubleaseIncomeDueYearFour

ovv:OperatingSubleaseIncomeDueYearFour


Operating
Period End2021-06-302021-03-312020-12-31
Value0.047-5.0
Percentage of OperatingSubleaseIncomeDueYearFour0.0100.0100.0

ovv:OperatingSubleaseIncomeDueYearOne

ovv:OperatingSubleaseIncomeDueYearOne


Operating
Period End2021-06-302021-03-31
Value1.048
Percentage of OperatingSubleaseIncomeDueYearOne100.0100.0

ovv:OperatingSubleaseIncomeDueYearThereafter

ovv:OperatingSubleaseIncomeDueYearThereafter


Operating
Period End2021-06-302021-03-312020-12-31
Value7.0528-32.0
Percentage of OperatingSubleaseIncomeDueYearThereafter100.0100.0100.0

ovv:OperatingSubleaseIncomeDueYearThree

ovv:OperatingSubleaseIncomeDueYearThree


Operating
Period End2021-06-302021-03-312020-12-31
Value1.046-5.0
Percentage of OperatingSubleaseIncomeDueYearThree100.0100.0100.0

ovv:OperatingSubleaseIncomeDueYearTwo

ovv:OperatingSubleaseIncomeDueYearTwo


Operating
Period End2021-06-302021-03-312020-12-31
Value0.047-6.0
Percentage of OperatingSubleaseIncomeDueYearTwo0.0100.0100.0

ovv:OperatingSubleaseIncomeUndiscountedRemainderOfFiscalYear

ovv:OperatingSubleaseIncomeUndiscountedRemainderOfFiscalYear


Operating
Period End2021-06-302021-03-31
Value-12.039
Percentage of OperatingSubleaseIncomeUndiscountedRemainderOfFiscalYear100.0100.0

ovv:OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansDueToCurtailmentTax

ovv:OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansDueToCurtailmentTax


Other
Period End2020-12-312020-09-302020-06-302019-06-30
Value00-1000000.00
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansDueToCurtailmentTax0.00.0100.00.0

ovv:OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansDueToCurtailmentBeforeTax

ovv:OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansDueToCurtailmentBeforeTax


Other
Period End2020-12-312020-09-302020-06-302019-06-30
Value00-5000000.00
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansDueToCurtailmentBeforeTax0.00.0100.00.0

ovv:OutplacementMovingAndOtherExpenses

ovv:OutplacementMovingAndOtherExpenses


Outplacement
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value01000000.01000000.03000000.001000000.0
Percentage of OutplacementMovingAndOtherExpenses0.0100.0100.0100.00.0100.0

ovv:PercentOfAccountsReceivableAndFinancialDerivativeCreditExposuresWithInvestmentGradeCounterparties

ovv:PercentOfAccountsReceivableAndFinancialDerivativeCreditExposuresWithInvestmentGradeCounterparties


Percent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-2.092.0-8.096.020.010.97
Percentage of PercentOfAccountsReceivableAndFinancialDerivativeCreditExposuresWithInvestmentGradeCounterparties100.0100.0100.0100.0100.0100.0

ovv:PercentOfFairValueOfOutstandingInMoneyNetRiskManagementContracts us-gaap:CounterpartyName

ovv:PercentOfFairValueOfOutstandingInMoneyNetRiskManagementContracts

ovv:CounterpartyOne


Percent
Period End2020-09-302020-06-302020-03-31
Value22.720.070.21
Percentage of PercentOfFairValueOfOutstandingInMoneyNetRiskManagementContracts100.0100.0100.0

ovv:CounterpartyThree


Percent
Period End2020-09-30
Value11.9
Percentage of PercentOfFairValueOfOutstandingInMoneyNetRiskManagementContracts52.4

ovv:CounterpartyTwo


Percent
Period End2020-09-302020-06-302020-03-31
Value14.790.040.17
Percentage of PercentOfFairValueOfOutstandingInMoneyNetRiskManagementContracts65.157.181.0

ovv:PurchasedProductCosts

ovv:PurchasedProductCosts


Purchased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value733604327322319398259264222298
Percentage of PurchasedProductCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:PurchasedProductCosts us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:MarketOptimization


Purchased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value733604327322319398259264222298
Percentage of PurchasedProductCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:PurchasedProductCosts us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, ovv:MarketingSales, us-gaap:ReportableSubsegments


Purchased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value249220231402132491919671895194720151116
Percentage of PurchasedProductCosts340.0334.9428.7411.2288.1494.2731.7737.5907.7374.5

ovv:PurchasedProductCosts us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, us-gaap:IntersubsegmentEliminations


Purchased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1759.0-1419.0-1075.0-1002.0-600.0-1569.0-1636.0-1683.0-1793.0-818.0
Percentage of PurchasedProductCosts-240.0-234.9-328.7-311.2-188.1-394.2-631.7-637.5-807.7-274.5

ovv:ROUOperatingLeaseAssetsAndLiabilities

ovv:ROUOperatingLeaseAssetsAndLiabilities


R
Period End2021-06-302021-03-312020-06-302020-03-31
Value5.0130.01.0
Percentage of ROUOperatingLeaseAssetsAndLiabilities100.0100.00.0100.0

ovv:ReclassificationOfShareCapitalFromCommonStockToAdditionalPaidInCapitalDueToReorganization us-gaap:StatementEquityComponents

ovv:ReclassificationOfShareCapitalFromCommonStockToAdditionalPaidInCapitalDueToReorganization

us-gaap:AdditionalPaidInCapital


Reclassification
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.07058
Percentage of ReclassificationOfShareCapitalFromCommonStockToAdditionalPaidInCapitalDueToReorganization0.00.00.0100.0

us-gaap:CommonStock


Reclassification
Period End2020-12-312020-09-302020-06-302020-01-242020-03-31
Value0.00.00.0-7058.0-7058.0
Percentage of ReclassificationOfShareCapitalFromCommonStockToAdditionalPaidInCapitalDueToReorganization0.00.00.0-100.00.0

ovv:ReferencePrice ovv:DistributionHub, us-gaap:ReserveQuantitiesByTypeOfReserve

ovv:ReferencePrice

ovv:Aeco, srt:NaturalGasReserves


Reference
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.242.360.120.310.221.480.24-0.09-0.081.69
Percentage of ReferencePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:EdmontonCondensate, ovv:OilAndNgls


Reference
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value13.0549.68-4.16-4.53-11.8670.320.99-5.1-2.9575.86
Percentage of ReferencePrice5437.52105.1-3466.7-1461.3-5390.94751.4412.55666.73687.54488.8

ovv:HenryHub, srt:NaturalGasReserves


Reference
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.272.160.01-0.1-0.232.3-0.29-0.15-0.053.07
Percentage of ReferencePrice112.591.58.3-32.3-104.5155.4-120.8166.762.5181.7

ovv:Wti, ovv:OilAndNgls


Reference
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9.7740.01-4.07-3.78-8.5956.06-1.83-3.62-1.6162.99
Percentage of ReferencePrice4070.81695.3-3391.7-1219.4-3904.53787.8-762.54022.22012.53727.2

ovv:SettlementOfOtherDerivativeContracts

ovv:SettlementOfOtherDerivativeContracts


Settlement
Period End2020-12-31
Value0
Percentage of SettlementOfOtherDerivativeContracts0.0

ovv:TransportationAndProcessingCosts

ovv:TransportationAndProcessingCosts


Transportation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value418379373365368396410398412338
Percentage of TransportationAndProcessingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ovv:TransportationAndProcessingCosts us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Transportation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value248224215203198213219211217212
Percentage of TransportationAndProcessingCosts59.359.157.655.653.853.853.453.052.762.7

us-gaap:OperatingSegments, ovv:MarketOptimization


Transportation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value44425053556265625947
Percentage of TransportationAndProcessingCosts10.511.113.414.514.915.715.915.614.313.9

us-gaap:OperatingSegments, ovv:UsaOperations


Transportation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value12611310810911512112612513679
Percentage of TransportationAndProcessingCosts30.129.829.029.931.230.630.731.433.023.4

ovv:TransportationAndProcessingCosts us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, ovv:MarketingSales, us-gaap:ReportableSubsegments


Transportation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value149137148148152168170173153139
Percentage of TransportationAndProcessingCosts35.636.139.740.541.342.441.543.537.141.1

ovv:TransportationAndProcessingCosts us-gaap:StatementBusinessSegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, us-gaap:IntersubsegmentEliminations


Transportation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-105.0-95.0-98.0-95.0-97.0-106.0-105.0-111.0-94.0-92.0
Percentage of TransportationAndProcessingCosts-25.1-25.1-26.3-26.0-26.4-26.8-25.6-27.9-22.8-27.2

ovv:UnrealizedGainLossOnDerivativesExcludingForeignCurrencyDerivatives

ovv:UnrealizedGainLossOnDerivativesExcludingForeignCurrencyDerivatives


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-576.0-271.0-186.0-243.0-679.0904-345.0-41.083-427.0
Percentage of UnrealizedGainLossOnDerivativesExcludingForeignCurrencyDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value717133632502770.00.0
Percentage of AssetImpairmentCharges100.0100.0100.0100.00.00.0

us-gaap:AssetImpairmentCharges us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:UsaOperations


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value717133632502770.00.0
Percentage of AssetImpairmentCharges100.0100.0100.0100.00.00.0

us-gaap:AssetRetirementObligationAccretionExpense

us-gaap:AssetRetirementObligationAccretionExpense


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.06.03.08.09.09.09.09.010.09.0
Percentage of AssetRetirementObligationAccretionExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationAccretionExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.06.03.08.09.09.09.09.010.09.0
Percentage of AssetRetirementObligationAccretionExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationForeignCurrencyTranslationGainLoss

us-gaap:AssetRetirementObligationForeignCurrencyTranslationGainLoss


Asset
Period End2020-12-312020-09-302020-06-302020-03-31
Value-10.0-6.0-12.029
Percentage of AssetRetirementObligationForeignCurrencyTranslationGainLoss100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:AssetRetirementObligationLiabilitiesIncurred


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-4.02.02.07.02.02.08.03.0
Percentage of AssetRetirementObligationLiabilitiesIncurred100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesSettled

us-gaap:AssetRetirementObligationLiabilitiesSettled


Asset
Period End2020-12-312020-09-302020-06-302020-03-31
Value3.0496642
Percentage of AssetRetirementObligationLiabilitiesSettled100.0100.0100.0100.0

us-gaap:AssetRetirementObligationRevisionOfEstimate

us-gaap:AssetRetirementObligationRevisionOfEstimate


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-61.0-10.00.0220.00.0
Percentage of AssetRetirementObligationRevisionOfEstimate100.0100.00.0100.00.00.0

us-gaap:ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure

us-gaap:ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure


Concentration
Period End2021-06-302021-03-31
Value-55.096
Percentage of ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure100.0100.0

us-gaap:ContributionOfProperty

us-gaap:ContributionOfProperty


Contribution
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.04.00.0212134.093631.02.0
Percentage of ContributionOfProperty100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContributionOfProperty us-gaap:PropertyPlantAndEquipmentByType

ovv:DuvernayShale


Contribution
Period End2020-12-312020-09-30
Value0.0203
Percentage of ContributionOfProperty0.095.8

us-gaap:CurrentIncomeTaxExpenseBenefit

us-gaap:CurrentIncomeTaxExpenseBenefit


Current
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0-156000000.0-16000000.03000000.0-1000000.00-16000000.0-1000000.03000000.01000000.0
Percentage of CurrentIncomeTaxExpenseBenefit0.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:CurrentIncomeTaxExpenseBenefit us-gaap:StatementGeographical

country:CA


Current
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0-156000000.0-1000000.0-1000000.000-2000000.02000000.00
Percentage of CurrentIncomeTaxExpenseBenefit0.0100.06.2-33.3-0.00.0200.066.70.0

country:US


Current
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-15000000.04000000.0-1000000.0001000000.01000000.01000000.0
Percentage of CurrentIncomeTaxExpenseBenefit93.8133.3100.00.0-0.0-100.033.3100.0

us-gaap:DebtInstrumentIncreaseAccruedInterest us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:DebtInstrumentIncreaseAccruedInterest

ovv:FivePointSeventyFiveUnsecuredNotes, ovv:UnsecuredNotesDueJanuaryThirtyTwoThousandTwentyTwo


Debt
Period End2021-06-30
Value13
Percentage of DebtInstrumentIncreaseAccruedInterest100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3000000.01000000.02000000.02000000.02000000.0001000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.00.00.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3000000.01000000.03000000.03000000.02000000.02000000.02000000.0001000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.00.0150.0100.0100.00.00.00.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0-1000000.00000
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.0-50.00.00.00.00.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2000000.01000000.02000000.01000000.02000000.02000000.01000000.02000000.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2000000.01000000.02000000.02000000.01000000.02000000.02000000.02000000.01000000.02000000.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:DefinedBenefitPlanInterestCost


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3000000.01000000.02000000.02000000.02000000.03000000.02000000.03000000.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value01000000.01000000.001000000.01000000.01000000.01000000.0
Percentage of DefinedBenefitPlanInterestCost0.050.050.00.00.033.350.033.3

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2000000.01000000.02000000.01000000.01000000.02000000.02000000.02000000.01000000.02000000.0
Percentage of DefinedBenefitPlanInterestCost66.7100.00.050.050.0100.00.066.750.066.7

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost


Defined
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1.04.0-1.04.04.06.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0-1.04.0-1.03.03.04.06.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost0.0100.0100.0100.00.075.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DefinedBenefitPlanServiceCost


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1000000.01000000.01000000.01000000.01000000.03000000.03000000.02000000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1000000.01000000.01000000.01000000.01000000.01000000.03000000.02000000.03000000.02000000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.00.0100.0100.0100.00.066.7100.0100.0

us-gaap:DefinedContributionPlanCostRecognized

us-gaap:DefinedContributionPlanCostRecognized


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value7.06.08.08.08.07.05.06.0
Percentage of DefinedContributionPlanCostRecognized100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedContributionPlanCostRecognized us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.06.04.08.08.08.0117.05.06.0
Percentage of DefinedContributionPlanCostRecognized100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:DerivativeGainLossOnDerivativeNet


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-794.0-422.0-60.0-137.0-284.01000-267.072206-335.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:IncomeStatementLocation

ovv:Revenue


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-799.0-427.0-80.0-154.0-314.01055-277.081190-355.0
Percentage of DerivativeGainLossOnDerivativeNet100.6101.2133.3112.4110.6105.5103.7112.592.2106.0

us-gaap:ForeignCurrencyGainLoss


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.05.0201730-55.010.0-9.01620
Percentage of DerivativeGainLossOnDerivativeNet-0.6-1.2-33.3-12.4-10.6-5.5-3.7-12.57.8-6.0

us-gaap:DerivativeNonmonetaryNotionalAmountVolume us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNonmonetaryNotionalAmountVolume

srt:NaturalGasLiquidsReserves, ovv:ButaneFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value008.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0100.0

srt:NaturalGasLiquidsReserves, ovv:ButaneFixedPriceContractMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-31
Value05.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0

srt:NaturalGasLiquidsReserves, ovv:EthaneFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-30
Value0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.0

srt:NaturalGasLiquidsReserves, ovv:IsoButaneFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value-0.203.5
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.043.8

srt:NaturalGasLiquidsReserves, ovv:PropaneFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value08.012.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0150.0

srt:NaturalGasLiquidsReserves, ovv:PropaneFixedPriceContractMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-31
Value012.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCostlessCollarsMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value0055.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0687.5

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value-89.071.0811.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.010137.5

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceContractMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value55.0110.000165.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.00.00.02062.5

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceSwaptionsMaturingTwoThousandAndTwentyTwo


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value0165.000165.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.00.00.02062.5

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value00330.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.04125.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-312020-09-30
Value-28.01033.0560.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateCostlessCollarsMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value0015.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0187.5

srt:OilReserves, ovv:WestTexasIntermediateCostlessCollarsMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-312020-09-30
Value015.01.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceContractsMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value-35.5-15.7140.2
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.01752.5

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceContractsMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-31
Value-3.333.3
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceSwaptionsMaturingTwoThousandAndTwentyOne


Derivative
Period End2020-09-302020-06-302020-03-31
Value0010.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0125.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value38.011.226.8
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.0335.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-312020-09-30
Value1.683.426.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.00.0

us-gaap:DerivativeNonmonetaryNotionalAmountVolume us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCallOptionsMaturingTwoThousandAndTwenty, us-gaap:Short


Derivative
Period End2020-09-302020-06-302020-03-31
Value00230.0
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.02875.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCallOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:Short


Derivative
Period End2021-06-302021-03-312020-09-30
Value0330.00
Percentage of DerivativeNonmonetaryNotionalAmountVolume0.00.00.0

us-gaap:DirectOperatingCosts

us-gaap:DirectOperatingCosts


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value149164153133154165187193187165
Percentage of DirectOperatingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DirectOperatingCosts us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Direct
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.00.0-2.0-1.00.0-1.0-1.0
Percentage of DirectOperatingCosts0.00.00.0-1.2-0.50.0-0.5-0.6

us-gaap:DirectOperatingCosts us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value25282524252629322737
Percentage of DirectOperatingCosts16.817.116.318.016.215.815.516.614.422.4

us-gaap:OperatingSegments, ovv:MarketOptimization


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.07.07.05.08.02.07.06.05.010.0
Percentage of DirectOperatingCosts4.74.34.63.85.21.23.73.12.76.1

us-gaap:OperatingSegments, ovv:UsaOperations


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value117129121104121139152151148115
Percentage of DirectOperatingCosts78.578.779.178.278.684.281.378.279.169.7

us-gaap:DirectOperatingCosts us-gaap:StatementBusinessSegments, us-gaap:Subsegments, us-gaap:SubsegmentsConsolidationItems

ovv:MarketOptimization, ovv:MarketingSales, us-gaap:ReportableSubsegments


Direct
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.07.07.05.08.02.07.06.05.010.0
Percentage of DirectOperatingCosts4.74.34.63.85.21.23.73.12.76.1

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value25242424252425242528
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value25242424252425242528
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents


Effect
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.00.01.01.0-7.01.00.01.03.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.00.0100.0100.0100.0100.00.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate us-gaap:IncomeTaxAuthority

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:DomesticCountry


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value021.0020.7900.21
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate0.0100.00.0100.00.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes us-gaap:StatementGeographical, us-gaap:StatementScenario, us-gaap:ValuationAllowanceByDeferredTaxAsset

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes

stpr:CA-AB, us-gaap:ScenarioAdjustment, ovv:TaxLegislation


Effective
Period End2022-01-01
Value0.08
Percentage of EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes100.0

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes us-gaap:StatementGeographical, us-gaap:ValuationAllowanceByDeferredTaxAsset

stpr:CA-AB, ovv:TaxLegislation


Effective
Period End2020-07-01
Value0.08
Percentage of EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes0.0

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-9.0-7.0-9.02.08.0-13.04.01.0-3.018
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ExtinguishmentOfDebtGainLossNetOfTax

us-gaap:ExtinguishmentOfDebtGainLossNetOfTax


Extinguishment
Period End2020-12-312020-09-302020-06-302020-03-31
Value2.06.01111
Percentage of ExtinguishmentOfDebtGainLossNetOfTax100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-332.0-237.0-83.010.0-38.0242-147.07747-100.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-198.0-156.0-153.025-83.0189-27.0-17.072-80.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-134.0-81.07012314019209.020
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.02.02.02.02.03.03.03.04.03.0
Percentage of FinanceLeaseInterestExpense0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value73232223222221222120
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.07.0342540-116.057-30.05537
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossRealized

us-gaap:ForeignCurrencyTransactionGainLossRealized


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.06.0122.00.0-20.043182213
Percentage of ForeignCurrencyTransactionGainLossRealized100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossUnrealized

us-gaap:ForeignCurrencyTransactionGainLossUnrealized


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-4.0-2.0192150-101.012-49.03525
Percentage of ForeignCurrencyTransactionGainLossUnrealized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossUnrealized us-gaap:FinancialInstrument

ovv:TranslationOfIntercompanyNotes


Foreign
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.00.027-77.024-64.0-79.0
Percentage of ForeignCurrencyTransactionGainLossUnrealized0.00.00.0-26.7-641.7-49.0-182.9-316.0

ovv:TranslationOfUSDollarDebtIssuedFromCanada


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0-1.05.06.014-76.090-68.09293
Percentage of ForeignCurrencyTransactionGainLossUnrealized-0.050.026.328.628.075.2750.0138.8262.9372.0

ovv:TranslationOfUSDollarRiskManagementContractsIssuedFromCanada


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-4.0-1.0141536-52.0-1.0-5.07.011
Percentage of ForeignCurrencyTransactionGainLossUnrealized100.050.073.771.472.051.5-8.310.220.044.0

us-gaap:GainLossFromPriceRiskManagementActivity

us-gaap:GainLossFromPriceRiskManagementActivity


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-799.0-427.0-80.0-154.0-314.01055-277.081190-355.0
Percentage of GainLossFromPriceRiskManagementActivity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossFromPriceRiskManagementActivity us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-576.0-271.0-186.0-243.0-679.0904-345.0-41.083-427.0
Percentage of GainLossFromPriceRiskManagementActivity72.163.5232.5157.8216.285.7124.5-50.643.7120.3

us-gaap:GainLossFromPriceRiskManagementActivity us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-35.0-22.019491033637876720
Percentage of GainLossFromPriceRiskManagementActivity4.45.2-23.8-31.8-32.83.4-13.4107.435.3-5.6

us-gaap:OperatingSegments, ovv:MarketOptimization


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.02.02.02.02.01.01.00.0-1.00.0
Percentage of GainLossFromPriceRiskManagementActivity-0.0-0.5-2.5-1.3-0.60.1-0.40.0-0.5-0.0

us-gaap:OperatingSegments, ovv:UsaOperations


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-188.0-136.0853826011430354152
Percentage of GainLossFromPriceRiskManagementActivity23.531.9-106.2-24.7-82.810.8-10.843.221.6-14.6

us-gaap:GainLossOnSaleOfDerivatives

us-gaap:GainLossOnSaleOfDerivatives


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-212.0-149.0112913591487012410672
Percentage of GainLossOnSaleOfDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfDerivatives us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:OtherContract, ovv:Revenue


Gain
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.00.00.01.01.01.02.01.0
Percentage of GainLossOnSaleOfDerivatives-0.50.00.00.30.71.41.60.9

us-gaap:GainLossOnSaleOfDerivatives us-gaap:IncomeStatementLocation

ovv:Revenue


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-223.0-156.0106893651516812210772
Percentage of GainLossOnSaleOfDerivatives105.2104.794.697.8101.7102.097.198.4100.9100.0

us-gaap:ForeignCurrencyGainLoss


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value117.06.02.0-6.0-3.02.02.0-1.00.0
Percentage of GainLossOnSaleOfDerivatives-5.2-4.75.42.2-1.7-2.02.91.6-0.90.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7612218642-223.0-31.022-82.0104-88.0
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets

us-gaap:IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value96166143-78.0-90.0-121.069-61.057-174.0
Percentage of IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDerivativeAssetsAndLiabilities us-gaap:DerivativeInstrumentRisk

us-gaap:IncreaseDecreaseInDerivativeAssetsAndLiabilities

us-gaap:CommodityContract


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-794.0-422.0-60.0-137.0-284.01000-267.072206-335.0
Percentage of IncreaseDecreaseInDerivativeAssetsAndLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value43-18.0-9.02619-6.07.0-2.03.0-35.0
Percentage of IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet

us-gaap:IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-22.057-33.0-142.0119-83.04332-44.0-118.0
Percentage of IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet

us-gaap:IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.06.06.047685242291511
Percentage of IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInRiskManagementAssetsAndLiabilities us-gaap:MeasurementInputType

us-gaap:IncreaseDecreaseInRiskManagementAssetsAndLiabilities

us-gaap:MeasurementInputPriceVolatility


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value8.08.01.01.01.03.0
Percentage of IncreaseDecreaseInRiskManagementAssetsAndLiabilities100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeOther us-gaap:IncomeStatementLocation

us-gaap:InterestIncomeOther

us-gaap:OtherOperatingIncomeExpense


Interest
Period End2021-06-302021-03-31
Value0.012
Percentage of InterestIncomeOther0.0100.0

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeaseLeaseIncome


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value14131314131315151313
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasesIncomeStatementSubleaseRevenue

us-gaap:OperatingLeasesIncomeStatementSubleaseRevenue


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value18181818171820191718
Percentage of OperatingLeasesIncomeStatementSubleaseRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasesIncomeStatementSubleaseRevenue us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value18181818171820191718
Percentage of OperatingLeasesIncomeStatementSubleaseRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2318522490-136.040-6.0-19.033
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2318522490-136.040-6.0-19.033
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.01.07.02.0-3.02.0-44.00.0231.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3000000.01000000.03000000.02000000.02000000.02000000.01000000.0001000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.00.00.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value1000000.01000000.001000000.0000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.00.0100.00.00.00.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-44.0-20.0-42.09.0-11.063-6.0-3.01947
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value70-28.0124-68.0272-130.03814230-54.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromProductiveAssets

us-gaap:PaymentsForProceedsFromProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1021.0-1.0-20.0-38.0-7.0-5.0-21.0-146.01520
Percentage of PaymentsForProceedsFromProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value4.0162.042346.0
Percentage of PaymentsForRestructuring100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireOilAndGasPropertyAndEquipment us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PaymentsToAcquireOilAndGasPropertyAndEquipment

us-gaap:OperatingSegments, ovv:UsaOperations


Payments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1.01.017251922
Percentage of PaymentsToAcquireOilAndGasPropertyAndEquipment100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementBenefitExpense

us-gaap:PensionAndOtherPostretirementBenefitExpense


Pension
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value6.06.07.0127.0119.012
Percentage of PensionAndOtherPostretirementBenefitExpense100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementBenefitExpense us-gaap:IncomeStatementLocation

us-gaap:GeneralAndAdministrativeExpense


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.01.01.02.01.02.03.02.02.02.0
Percentage of PensionAndOtherPostretirementBenefitExpense33.316.70.028.68.328.60.018.222.216.7

us-gaap:OperatingExpense


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.06.05.07.08.07.0118.06.06.0
Percentage of PensionAndOtherPostretirementBenefitExpense100.0100.00.0100.066.7100.00.072.766.750.0

us-gaap:OtherNonoperatingIncomeExpense


Pension
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2.0-1.0-2.03.0-2.01.01.01.04.0
Percentage of PensionAndOtherPostretirementBenefitExpense-33.3-16.7-28.625.0-28.60.09.111.133.3

us-gaap:PensionAndOtherPostretirementBenefitExpense us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0-1.04.0-1.03.03.04.06.0
Percentage of PensionAndOtherPostretirementBenefitExpense0.0-14.333.3-14.30.027.344.450.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.06.07.08.08.08.0128.05.06.0
Percentage of PensionAndOtherPostretirementBenefitExpense116.7100.00.0114.366.7114.30.072.755.650.0

us-gaap:ProceedsFromRepaymentsOfLinesOfCredit

us-gaap:ProceedsFromRepaymentsOfLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-490.0-460.0-200.0-100.0408144-42.0-21.07610.0
Percentage of ProceedsFromRepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10232.020398.022201714.02.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:DuvernayAssets, ovv:CanadianOperations


Proceeds
Period End2021-06-30
Value239
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment23.4

us-gaap:OperatingSegments, ovv:EagleFordAssets, ovv:UsaOperations


Proceeds
Period End2021-06-30
Value771
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment75.4

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value2501.05.03.02.01.01.0-1.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment24.450.025.07.725.04.525.0-50.0

us-gaap:OperatingSegments, ovv:UsaOperations


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7731.015366.021191713.03.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment75.650.075.092.375.095.595.0100.075.0150.0

us-gaap:RepaymentsOfUnsecuredDebt

us-gaap:RepaymentsOfUnsecuredDebt


Repayments
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6194810926890.00.05000.0
Percentage of RepaymentsOfUnsecuredDebt100.0100.0100.0100.0100.00.00.0100.00.0

us-gaap:RepaymentsOfUnsecuredDebt us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

ovv:FivePointSeventyFiveUnsecuredNotes, ovv:UnsecuredNotesDueJanuaryThirtyTwoThousandTwentyTwo


Repayments
Period End2021-06-30
Value632
Percentage of RepaymentsOfUnsecuredDebt102.1

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value5.06.02.07.0810.04.04.017
Percentage of RestructuringCharges100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:ResultsOfOperationsImpairmentOfOilAndGasProperties us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ResultsOfOperationsImpairmentOfOilAndGasProperties

us-gaap:OperatingSegments, ovv:UsaOperations


Results
Period End2020-12-312020-09-302020-06-302020-03-31
Value71713363250277
Percentage of ResultsOfOperationsImpairmentOfOilAndGasProperties100.0100.0100.0100.0

us-gaap:SeveranceCosts1

us-gaap:SeveranceCosts1


Severance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value5.06.02.06.0801.04.016
Percentage of SeveranceCosts1100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate us-gaap:Currency

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate

currency:CAD


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1.914.6203-0.0910.1307-1.62361.62510.00460.0103
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate100.0100.0100.0100.0100.0100.0100.0100.0

currency:USD


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1.994.5607-0.09960.1389-1.6141.61540.00420.0104
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate104.298.7109.5106.399.499.491.3101.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate us-gaap:Currency, us-gaap:AwardType

currency:CAD, ovv:TandemStockAppreciationRights


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.381.58-9.113.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate0.00.010000.010000.0

currency:USD, us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.381.57-9.9613.89
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate0.00.010945.110627.4

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:Currency

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

currency:CAD


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.99100.650.06920.9342-42.33442.353-0.00170.4192
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0100.0100.0100.0100.0100.0100.0

currency:USD


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.1101.420.07070.9381-43.6943.704-0.00330.4395
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate105.5100.8102.2100.4103.2103.2194.1104.8

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:Currency, us-gaap:AwardType

currency:CAD, ovv:TandemStockAppreciationRights


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.5104.446.9293.42
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.00.010000.010000.0

currency:USD, us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.55105.417.0793.81
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.00.010216.810041.7

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:Currency

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

currency:CAD


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.020.2175-0.00220.0047-1.56311.565100.0149
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0100.0100.0100.0100.0100.00.0100.0

currency:USD


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.020.2175-0.00220.0047-1.56311.565100.0149
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:Currency, us-gaap:AwardType

currency:CAD, ovv:TandemStockAppreciationRights


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.210.23-0.220.47
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.00.010000.010000.0

currency:USD, us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.210.23-0.220.47
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.00.010000.010000.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:RestrictedStock


Sharebased
Period End2020-09-302020-06-302020-03-31
Value000.3333
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.00.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:StockIssuedDuringPeriodSharesNewIssues


Stock
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.11.20.00.0
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0100.00.00.0

us-gaap:TaxesExcludingIncomeAndExciseTaxes

us-gaap:TaxesExcludingIncomeAndExciseTaxes


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value73604747275267667348
Percentage of TaxesExcludingIncomeAndExciseTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxesExcludingIncomeAndExciseTaxes us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ovv:CanadianOperations


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.05.04.04.03.04.05.03.04.04.0
Percentage of TaxesExcludingIncomeAndExciseTaxes5.58.38.58.511.17.77.54.55.58.3

us-gaap:OperatingSegments, ovv:UsaOperations


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value69554343244862636944
Percentage of TaxesExcludingIncomeAndExciseTaxes94.591.791.591.588.992.392.595.594.591.7

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:UnrealizedGainLossOnDerivatives


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-582.0-273.0-172.0-228.0-643.0852-337.0-52.0100-407.0
Percentage of UnrealizedGainLossOnDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivatives us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:OtherContract, ovv:Revenue


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.02.03.00.013-17.00.00.0-1.0
Percentage of UnrealizedGainLossOnDerivatives-0.2-0.7-1.7-0.0-2.0-2.0-0.0-0.0-1.0

us-gaap:UnrealizedGainLossOnDerivatives us-gaap:IncomeStatementLocation

ovv:Revenue


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-576.0-271.0-186.0-243.0-679.0904-345.0-41.083-427.0
Percentage of UnrealizedGainLossOnDerivatives99.099.3108.1106.6105.6106.1102.478.883.0104.9

us-gaap:ForeignCurrencyGainLoss


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-6.0-2.0141536-52.08.0-11.01720
Percentage of UnrealizedGainLossOnDerivatives1.00.7-8.1-6.6-5.6-6.1-2.421.217.0-4.9

us-gaap:UnrecognizedTaxBenefitsPeriodIncreaseDecrease

us-gaap:UnrecognizedTaxBenefitsPeriodIncreaseDecrease


Unrecognized
Period End2021-06-302021-03-31
Value0-222000000.0
Percentage of UnrecognizedTaxBenefitsPeriodIncreaseDecrease0.0100.0

us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount

us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount


Valuation
Period End2021-06-302021-03-31
Value0.0-66.0
Percentage of ValuationAllowanceDeferredTaxAssetChangeInAmount0.0100.0

us-gaap:VariableLeaseIncome

us-gaap:VariableLeaseIncome


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.05.05.04.04.05.05.04.06.03.0
Percentage of VariableLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-03-312020-06-302020-03-312019-06-302019-03-31
Value5900000.00000
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.00.00.00.00.0

ovv:AccountsReceivableAndAccruedRevenues

ovv:AccountsReceivableAndAccruedRevenues


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value122210899287668199181235789
Percentage of AccountsReceivableAndAccruedRevenues100.0100.0100.0100.0100.0100.0100.0100.0

ovv:AccountsReceivableAndAccruedRevenuesGross

ovv:AccountsReceivableAndAccruedRevenuesGross


Accounts
Period End2020-12-312019-12-312018-12-31
Value9321238794
Percentage of AccountsReceivableAndAccruedRevenuesGross100.0100.0100.0

ovv:CapitalAccruals

ovv:CapitalAccruals


Capital
Period End2020-12-312019-12-312018-12-31
Value166351277
Percentage of CapitalAccruals100.0100.0100.0

ovv:ContingentConsiderationReceivableRelatingToAssetDivestiture us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:StatementScenario

ovv:ContingentConsiderationReceivableRelatingToAssetDivestiture

ovv:DuvernayAssets, srt:ScenarioForecast


Contingent
Period End2022-12-312021-12-31
Value10000000.05000000.0
Percentage of ContingentConsiderationReceivableRelatingToAssetDivestiture100.0100.0

ovv:ContractualObligationDueAfterFourthYear

ovv:ContractualObligationDueAfterFourthYear


Contractual
Period End2021-06-302021-03-312020-09-30
Value238623122314
Percentage of ContractualObligationDueAfterFourthYear100.0100.0100.0

ovv:ContractualObligationDueAfterFourthYear us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2021-06-302021-03-312020-09-30
Value2.02.08.0
Percentage of ContractualObligationDueAfterFourthYear0.10.10.3

ovv:DrillingAndFieldServicesCommitments


Contractual
Period End2020-09-30
Value1.0
Percentage of ContractualObligationDueAfterFourthYear0.0

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-09-30
Value238423102305
Percentage of ContractualObligationDueAfterFourthYear99.999.999.6

ovv:DeferredIncomeTaxAssetsAlternativeMinimumTaxAndForeignTaxCredits

ovv:DeferredIncomeTaxAssetsAlternativeMinimumTaxAndForeignTaxCredits


Deferred
Period End2020-12-312019-12-312018-12-31
Value165198198
Percentage of DeferredIncomeTaxAssetsAlternativeMinimumTaxAndForeignTaxCredits100.0100.0100.0

ovv:DeferredTaxAssetsCapitalLossAndNonCapitalCarryforwards

ovv:DeferredTaxAssetsCapitalLossAndNonCapitalCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-31
Value291717031107
Percentage of DeferredTaxAssetsCapitalLossAndNonCapitalCarryforwards100.0100.0100.0

ovv:EquityAdjustmentCumulativeHistoricalCeilingTestImpairment us-gaap:CreditFacility

ovv:EquityAdjustmentCumulativeHistoricalCeilingTestImpairment

us-gaap:RevolvingCreditFacility


Equity
Period End2020-12-31
Value7700
Percentage of EquityAdjustmentCumulativeHistoricalCeilingTestImpairment100.0

ovv:GuaranteeBenefitsAndObligationsCurrentCarryingValue

ovv:GuaranteeBenefitsAndObligationsCurrentCarryingValue


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-31
Value2000000.0-6000000.0-8000000.0-11000000.0-9000000.0-14000000.0
Percentage of GuaranteeBenefitsAndObligationsCurrentCarryingValue100.0100.0100.0100.0100.0100.0

ovv:IncreaseInValueOfDebtAcquired

ovv:IncreaseInValueOfDebtAcquired


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value8810311111912814014922
Percentage of IncreaseInValueOfDebtAcquired100.0100.0100.0100.0100.0100.0100.0100.0

ovv:LiabilityForUnvestedCashSettledShareBasedPaymentTransactions

ovv:LiabilityForUnvestedCashSettledShareBasedPaymentTransactions


Liability
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value42367.065148274
Percentage of LiabilityForUnvestedCashSettledShareBasedPaymentTransactions100.0100.0100.0100.0100.0100.0

ovv:LiabilityForVestedCashSettledShareBasedPaymentTransactions

ovv:LiabilityForVestedCashSettledShareBasedPaymentTransactions


Liability
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value5.07.01.0131753
Percentage of LiabilityForVestedCashSettledShareBasedPaymentTransactions100.0100.0100.0100.0100.0100.0

ovv:MarketOptimizationAccruals

ovv:MarketOptimizationAccruals


Market
Period End2020-12-312019-12-31
Value196220
Percentage of MarketOptimizationAccruals100.0100.0

ovv:NetPremiumsPaidReceivedOnUnexpiredOptions

ovv:NetPremiumsPaidReceivedOnUnexpiredOptions


Net
Period End2020-09-30
Value-2000000.0
Percentage of NetPremiumsPaidReceivedOnUnexpiredOptions100.0

ovv:OperatingLossCarryforwardsIndefiniteExpirationPeriod us-gaap:StatementGeographical

ovv:OperatingLossCarryforwardsIndefiniteExpirationPeriod

country:US


Operating
Period End2020-12-31
Value853
Percentage of OperatingLossCarryforwardsIndefiniteExpirationPeriod100.0

ovv:OtherDerivativeContractAssets

ovv:OtherDerivativeContractAssets


Other
Period End2021-06-30
Value8000000.0
Percentage of OtherDerivativeContractAssets100.0

ovv:OtherDerivativeContractAssets us-gaap:BalanceSheetLocation

ovv:AccountsReceivableAndAccruedRevenues


Other
Period End2021-06-30
Value3000000.0
Percentage of OtherDerivativeContractAssets37.5

us-gaap:OtherNoncurrentAssets


Other
Period End2021-06-30
Value5000000.0
Percentage of OtherDerivativeContractAssets62.5

ovv:OtherDerivativeContractAssets us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel

ovv:AccountsReceivableAndAccruedRevenues, us-gaap:FairValueInputsLevel3


Other
Period End2021-06-30
Value3000000.0
Percentage of OtherDerivativeContractAssets37.5

us-gaap:OtherNoncurrentAssets, us-gaap:FairValueInputsLevel3


Other
Period End2021-06-30
Value5000000.0
Percentage of OtherDerivativeContractAssets62.5

ovv:OtherDerivativeContractAssets us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementBasis

ovv:AccountsReceivableAndAccruedRevenues, us-gaap:CarryingReportedAmountFairValueDisclosure


Other
Period End2021-06-30
Value3000000.0
Percentage of OtherDerivativeContractAssets37.5

us-gaap:OtherNoncurrentAssets, us-gaap:CarryingReportedAmountFairValueDisclosure


Other
Period End2021-06-30
Value5000000.0
Percentage of OtherDerivativeContractAssets62.5

ovv:OutstandingDisbursements

ovv:OutstandingDisbursements


Outstanding
Period End2020-12-312019-12-31
Value8778
Percentage of OutstandingDisbursements100.0100.0

ovv:RevolvingCreditFacilityAndCommercialPaper

ovv:RevolvingCreditFacilityAndCommercialPaper


Revolving
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value49095011501250842698
Percentage of RevolvingCreditFacilityAndCommercialPaper100.0100.0100.0100.0100.0100.0

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValue

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValue


Risk
Period End2021-03-312020-12-31
Value-495000000.0-222000000.0
Percentage of RiskManagementAndOtherDerivativeGuaranteeAtFairValue100.0100.0

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueAndNetPremiumReceived

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueAndNetPremiumReceived


Risk
Period End2020-09-302020-06-302020-03-31
Value-52.0174813
Percentage of RiskManagementAndOtherDerivativeGuaranteeAtFairValueAndNetPremiumReceived100.0100.0100.0

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueNet

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueNet


Risk
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value-1070.0-495.0-222.0-52.0174813-41.0654
Percentage of RiskManagementAndOtherDerivativeGuaranteeAtFairValueNet100.0100.0100.0100.0100.0100.0100.0100.0

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueNetBeforePremiums

ovv:RiskManagementAndOtherDerivativeGuaranteeAtFairValueNetBeforePremiums


Risk
Period End2020-12-31
Value-222000000.0
Percentage of RiskManagementAndOtherDerivativeGuaranteeAtFairValueNetBeforePremiums100.0

ovv:RoyaltyAndProductionAccruals

ovv:RoyaltyAndProductionAccruals


Royalty
Period End2020-12-312019-12-312018-12-31
Value463598311
Percentage of RoyaltyAndProductionAccruals100.0100.0100.0

ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue us-gaap:Currency, us-gaap:AwardType

ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue

currency:CAD, ovv:TandemStockAppreciationRights


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value50.1649.9348.2848.28
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue100.0100.0100.0100.0

currency:USD, us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value36.9836.7238.1138.13
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageGrantDateFairValue73.773.578.979.0

ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsRedeemed us-gaap:Currency, us-gaap:AwardType

ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsRedeemed

currency:CAD, us-gaap:PhantomShareUnitsPSUs


Share
Period End2020-12-312019-12-312018-12-31
Value72000.01000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsRedeemed100.0100.00.0

ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue us-gaap:Currency, us-gaap:AwardType

ovv:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue

currency:CAD, us-gaap:PerformanceShares


Share
Period End2020-12-31
Value18.83
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue100.0

currency:CAD, us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-31
Value18.83
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue100.0

currency:USD, us-gaap:PerformanceShares


Share
Period End2020-12-31
Value14.85
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue78.9

currency:USD, us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-31
Value14.85
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue78.9

ovv:ShelfProspectusRemainingBorrowingCapacity

ovv:ShelfProspectusRemainingBorrowingCapacity


Shelf
Period End2020-12-31
Value6000
Percentage of ShelfProspectusRemainingBorrowingCapacity100.0

ovv:TaxPoolsTaxBasis us-gaap:StatementGeographical

ovv:TaxPoolsTaxBasis

country:CA


Tax
Period End2020-12-312019-12-31
Value15351652
Percentage of TaxPoolsTaxBasis100.0100.0

country:US


Tax
Period End2020-12-312019-12-31
Value77446960
Percentage of TaxPoolsTaxBasis504.5421.3

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value33249564803876819309
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows100.0100.0100.0100.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows us-gaap:StatementGeographical

country:CA


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value715610404124637850
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows21.518.432.140.7

country:US


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value26093460762630511459
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows78.581.667.959.3

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value80461381973925100
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts100.0100.0100.0100.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts us-gaap:StatementGeographical

country:CA


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value1859302426412058
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts23.121.935.740.4

country:US


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value61871079547513042
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts76.978.164.359.6

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value742262225976
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense100.0100.0100.0100.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense us-gaap:StatementGeographical

country:US


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value74226216730.0
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense100.0100.074.10.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value1206322544174876956
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows100.0100.0100.0100.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows us-gaap:StatementGeographical

country:CA


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value1095258940052200
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows9.111.522.931.6

country:US


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value1096819955134824756
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows90.988.577.168.4

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value1306617855116307177
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts100.0100.0100.0100.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts us-gaap:StatementGeographical

country:CA


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value4202479152313516
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts32.226.845.049.0

country:US


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value88641306463993661
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts67.873.255.051.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value61411092878832643
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows100.0100.0100.0100.0

srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows us-gaap:StatementGeographical

country:CA


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value24610141351618
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows4.09.317.123.4

country:US


Future
Period End2020-12-312019-12-312018-12-312017-12-31
Value5895991465322025
Percentage of FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows96.090.782.976.6

srt:ProvedDevelopedAndUndevelopedReservesNet

srt:ProvedDevelopedAndUndevelopedReservesNet


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1992.52188.81215.7794.9789.7
Percentage of ProvedDevelopedAndUndevelopedReservesNet100.0100.0100.0100.0100.0

srt:ProvedDevelopedAndUndevelopedReservesNet us-gaap:ReserveQuantitiesByTypeOfReserve

srt:NaturalGasLiquidsReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value580.5588.5280.8182.5150.4
Percentage of ProvedDevelopedAndUndevelopedReservesNet29.126.923.123.019.0

srt:NaturalGasReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4918.05259.03499.02519.02902.0
Percentage of ProvedDevelopedAndUndevelopedReservesNet246.8240.3287.8316.9367.5

srt:OilReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value592.3723.7351.8192.5155.6
Percentage of ProvedDevelopedAndUndevelopedReservesNet29.733.128.924.219.7

srt:ProvedDevelopedAndUndevelopedReservesNet us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:StatementGeographical

srt:NaturalGasLiquidsReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value151.4179.1158.5115.094.0
Percentage of ProvedDevelopedAndUndevelopedReservesNet7.68.213.014.511.9

srt:NaturalGasLiquidsReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value429.1409.4122.367.556.4
Percentage of ProvedDevelopedAndUndevelopedReservesNet21.518.710.18.57.1

srt:NaturalGasReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2650.02818.02901.02135.01810.0
Percentage of ProvedDevelopedAndUndevelopedReservesNet133.0128.7238.6268.6229.2

srt:NaturalGasReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2268.02441.0598.0384.01093.0
Percentage of ProvedDevelopedAndUndevelopedReservesNet113.8111.549.248.3138.4

srt:OilReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1.71.30.20.20
Percentage of ProvedDevelopedAndUndevelopedReservesNet0.10.10.00.00.0

srt:OilReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value590.5722.4351.5192.3155.6
Percentage of ProvedDevelopedAndUndevelopedReservesNet29.633.028.924.219.7

srt:ProvedDevelopedReservesVolume

srt:ProvedDevelopedReservesVolume


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value1111.31041.1604.7407.8
Percentage of ProvedDevelopedReservesVolume100.0100.0100.0100.0

srt:ProvedDevelopedReservesVolume us-gaap:ReserveQuantitiesByTypeOfReserve

srt:NaturalGasLiquidsReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value319.3279.8120.282.1
Percentage of ProvedDevelopedReservesVolume28.726.919.920.1

srt:NaturalGasReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value3067.02815.02002.01325.0
Percentage of ProvedDevelopedReservesVolume276.0270.4331.1324.9

srt:OilReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value280.9292.2150.9104.9
Percentage of ProvedDevelopedReservesVolume25.328.125.025.7

srt:ProvedDevelopedReservesVolume us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:StatementGeographical

srt:NaturalGasLiquidsReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value76.968.460.840.5
Percentage of ProvedDevelopedReservesVolume6.96.610.19.9

srt:NaturalGasLiquidsReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value242.3211.359.441.6
Percentage of ProvedDevelopedReservesVolume21.820.39.810.2

srt:NaturalGasReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value1740.01439.01707.01082.0
Percentage of ProvedDevelopedReservesVolume156.6138.2282.3265.3

srt:NaturalGasReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value1327.01375.0295.0243.0
Percentage of ProvedDevelopedReservesVolume119.4132.148.859.6

srt:OilReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value1.71.20.20.2
Percentage of ProvedDevelopedReservesVolume0.20.10.00.0

srt:OilReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value279.1291.0150.6104.7
Percentage of ProvedDevelopedReservesVolume25.128.024.925.7

srt:ProvedUndevelopedReserveVolume

srt:ProvedUndevelopedReserveVolume


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value881.11147.7611.0387.1
Percentage of ProvedUndevelopedReserveVolume100.0100.0100.0100.0

srt:ProvedUndevelopedReserveVolume us-gaap:ReserveQuantitiesByTypeOfReserve

srt:NaturalGasLiquidsReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value261.2308.8160.6100.3
Percentage of ProvedUndevelopedReserveVolume29.626.926.325.9

srt:NaturalGasReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value1851.02444.01497.01195.0
Percentage of ProvedUndevelopedReserveVolume210.1212.9245.0308.7

srt:OilReserves


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value311.4431.5200.987.7
Percentage of ProvedUndevelopedReserveVolume35.337.632.922.7

srt:ProvedUndevelopedReserveVolume us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:StatementGeographical

srt:NaturalGasLiquidsReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value74.5110.797.874.5
Percentage of ProvedUndevelopedReserveVolume8.59.616.019.2

srt:NaturalGasLiquidsReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value186.7198.162.825.8
Percentage of ProvedUndevelopedReserveVolume21.217.310.36.7

srt:NaturalGasReserves, country:CA


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value910.01378.01195.01053.0
Percentage of ProvedUndevelopedReserveVolume103.3120.1195.6272.0

srt:NaturalGasReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value941.01066.0302.0141.0
Percentage of ProvedUndevelopedReserveVolume106.892.949.436.4

srt:OilReserves, country:US


Proved
Period End2020-12-312019-12-312018-12-312017-12-31
Value311.4431.4200.987.7
Percentage of ProvedUndevelopedReserveVolume35.337.632.922.7

srt:StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves

srt:StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves


Standardized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value592211616960443131675
Percentage of StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves100.0100.0100.0100.0100.0

srt:StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves us-gaap:StatementGeographical

country:CA


Standardized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value849157526541582439
Percentage of StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves14.313.627.636.726.2

country:US


Standardized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value507310041695027311236
Percentage of StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves85.786.472.463.373.8

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsPayableTradeCurrent


Accounts
Period End2020-12-312019-12-312018-12-31
Value306355233
Percentage of AccountsPayableTradeCurrent100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2020-12-312019-12-312018-12-31
Value8711149735
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

ovv:CorporateAndOtherReceivable


Accounts
Period End2020-12-312019-12-312018-12-31
Value262415
Percentage of AccountsReceivableGrossCurrent3.02.12.0

ovv:DerivativeFinancialInstrumentsReceivable


Accounts
Period End2020-12-312019-12-312018-12-31
Value237.036
Percentage of AccountsReceivableGrossCurrent2.60.64.9

ovv:MidstreamAndMarketingReceivable


Accounts
Period End2020-12-312019-12-312018-12-31
Value357353365
Percentage of AccountsReceivableGrossCurrent41.030.749.7

ovv:OilAndNaturalGasLiquids


Accounts
Period End2020-12-312019-12-312018-12-31
Value465765319
Percentage of AccountsReceivableGrossCurrent53.466.643.4

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-31000000.0-33000000.0-34000000.0-41000000.0-43000000.0-40000000.0-42000000.02000000.02000000.0-21000000.0-22000000.0-13000000.0-10000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value108610611042983957870100410081014101097610291200
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AcquisitionCostsCumulative

us-gaap:AcquisitionCostsCumulative


Acquisition
Period End2020-12-312019-12-31
Value28143573
Percentage of AcquisitionCostsCumulative100.0100.0

us-gaap:AcquisitionCostsCumulative us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

ovv:Currentyear


Acquisition
Period End2020-12-312019-12-31
Value22948
Percentage of AcquisitionCostsCumulative0.826.5

ovv:Prioryear


Acquisition
Period End2020-12-312019-12-31
Value810223
Percentage of AcquisitionCostsCumulative28.86.2

ovv:SecondPriorYear


Acquisition
Period End2020-12-312019-12-31
Value17240
Percentage of AcquisitionCostsCumulative0.66.7

ovv:ThirdPriorYearAndPrevious


Acquisition
Period End2020-12-312019-12-31
Value19652162
Percentage of AcquisitionCostsCumulative69.860.5

us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables

us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value3.04.04.04.05.0113.0
Percentage of AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-12-312019-12-312018-12-31
Value4000000.03000000.05000000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value440495538581614455514
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationCurrent

us-gaap:AssetRetirementObligationCurrent


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value394910314318990
Percentage of AssetRetirementObligationCurrent100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationsNoncurrent

us-gaap:AssetRetirementObligationsNoncurrent


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value344398401446435438425365
Percentage of AssetRetirementObligationsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities

us-gaap:CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value47637399993741637350
Percentage of CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities100.0100.0100.0100.0

us-gaap:CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities us-gaap:StatementGeographical

country:CA


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value15056143201326114047
Percentage of CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities31.635.835.437.6

country:US


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value32581256232409923240
Percentage of CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities68.464.164.462.2

us-gaap:CapitalizedCostsMineralInterestsInProvedProperties

us-gaap:CapitalizedCostsMineralInterestsInProvedProperties


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value53883512104124140228
Percentage of CapitalizedCostsMineralInterestsInProvedProperties100.0100.0100.0100.0

us-gaap:CapitalizedCostsMineralInterestsInProvedProperties us-gaap:StatementGeographical

country:CA


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value16008152841399614555
Percentage of CapitalizedCostsMineralInterestsInProvedProperties29.729.833.936.2

country:US


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value37875358702718925610
Percentage of CapitalizedCostsMineralInterestsInProvedProperties70.370.065.963.7

us-gaap:CapitalizedCostsMineralInterestsInUnprovedProperties

us-gaap:CapitalizedCostsMineralInterestsInUnprovedProperties


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value2962371437304480
Percentage of CapitalizedCostsMineralInterestsInUnprovedProperties100.0100.0100.0100.0

us-gaap:CapitalizedCostsMineralInterestsInUnprovedProperties us-gaap:StatementGeographical

country:CA


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value177223237311
Percentage of CapitalizedCostsMineralInterestsInUnprovedProperties6.06.06.46.9

country:US


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value2785349134934169
Percentage of CapitalizedCostsMineralInterestsInUnprovedProperties94.094.093.693.1

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative


Capitalized
Period End2020-12-312019-12-312018-12-31
Value296237143730
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative100.0100.0100.0

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

ovv:Currentyear


Capitalized
Period End2020-12-312019-12-31
Value29951
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative1.025.6

ovv:Prioryear


Capitalized
Period End2020-12-312019-12-31
Value813241
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative27.46.5

ovv:SecondPriorYear


Capitalized
Period End2020-12-312019-12-31
Value35242
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative1.26.5

ovv:ThirdPriorYearAndPrevious


Capitalized
Period End2020-12-312019-12-31
Value20852280
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative70.461.4

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative us-gaap:PropertyPlantAndEquipmentByType

ovv:PermianAnadarkoBakkenAndUintaAssets


Capitalized
Period End2020-12-312019-12-31
Value28003500
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative94.594.2

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative us-gaap:StatementGeographical

country:CA


Capitalized
Period End2020-12-312019-12-312018-12-31
Value177223237
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative6.06.06.4

country:US


Capitalized
Period End2020-12-312019-12-312018-12-31
Value278534913493
Percentage of CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative94.094.093.6

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesGross

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesGross


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value56845549244497144708
Percentage of CapitalizedCostsOilAndGasProducingActivitiesGross100.0100.0100.0100.0

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesGross us-gaap:StatementGeographical

country:CA


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value16185155071423314866
Percentage of CapitalizedCostsOilAndGasProducingActivitiesGross28.528.231.633.3

country:US


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value40660393613068229779
Percentage of CapitalizedCostsOilAndGasProducingActivitiesGross71.571.768.266.6

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesNet

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesNet


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value92081492575557358
Percentage of CapitalizedCostsOilAndGasProducingActivitiesNet100.0100.0100.0100.0

us-gaap:CapitalizedCostsOilAndGasProducingActivitiesNet us-gaap:StatementGeographical

country:CA


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value11291187972819
Percentage of CapitalizedCostsOilAndGasProducingActivitiesNet12.38.012.911.1

country:US


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-31
Value80791373865836539
Percentage of CapitalizedCostsOilAndGasProducingActivitiesNet87.792.087.188.9

us-gaap:CapitalizedCostsProvedProperties

us-gaap:CapitalizedCostsProvedProperties


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value545255460353883526535192650952512104124141241
Percentage of CapitalizedCostsProvedProperties100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedCostsUnprovedProperties

us-gaap:CapitalizedCostsUnprovedProperties


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value244428072962316833233460371437303730
Percentage of CapitalizedCostsUnprovedProperties100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:CashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value551.01.010.010.047146941284131006668
Percentage of CashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialPaperNoncurrent

us-gaap:CommercialPaperNoncurrent


Commercial
Period End2021-03-312020-12-312020-09-302019-12-312018-12-31
Value4903521406980.0
Percentage of CommercialPaperNoncurrent100.0100.0100.0100.00.0

us-gaap:CommonStockValueOutstanding

us-gaap:CommonStockValueOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value3.03.03.03.03.03.07061465647574756
Percentage of CommonStockValueOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractualObligation

us-gaap:ContractualObligation


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value5218540853934871
Percentage of ContractualObligation100.0100.0100.0100.0

us-gaap:ContractualObligation us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value36394249
Percentage of ContractualObligation0.70.70.81.0

ovv:DrillingAndFieldServicesCommitments


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value53393651
Percentage of ContractualObligation1.00.70.71.0

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value5129533053154771
Percentage of ContractualObligation98.398.698.697.9

us-gaap:ContractualObligationDueAfterFifthYear

us-gaap:ContractualObligationDueAfterFifthYear


Contractual
Period End2020-12-31
Value2181
Percentage of ContractualObligationDueAfterFifthYear100.0

us-gaap:ContractualObligationDueAfterFifthYear us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2020-12-31
Value2.0
Percentage of ContractualObligationDueAfterFifthYear0.1

ovv:TransporationAndProcessingCommitments


Contractual
Period End2020-12-31
Value2179
Percentage of ContractualObligationDueAfterFifthYear99.9

us-gaap:ContractualObligationDueInFifthYear

us-gaap:ContractualObligationDueInFifthYear


Contractual
Period End2020-12-31
Value449
Percentage of ContractualObligationDueInFifthYear100.0

us-gaap:ContractualObligationDueInFifthYear us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2020-12-31
Value5.0
Percentage of ContractualObligationDueInFifthYear1.1

ovv:TransporationAndProcessingCommitments


Contractual
Period End2020-12-31
Value444
Percentage of ContractualObligationDueInFifthYear98.9

us-gaap:ContractualObligationDueInFourthYear

us-gaap:ContractualObligationDueInFourthYear


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value441456513439
Percentage of ContractualObligationDueInFourthYear100.0100.0100.0100.0

us-gaap:ContractualObligationDueInFourthYear us-gaap:TypeOfArrangement

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value435450507433
Percentage of ContractualObligationDueInFourthYear98.698.798.898.6

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInNextTwelveMonths


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value764779778701
Percentage of ContractualObligationDueInNextTwelveMonths100.0100.0100.0100.0

us-gaap:ContractualObligationDueInNextTwelveMonths us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value10.010.01314
Percentage of ContractualObligationDueInNextTwelveMonths1.31.31.72.0

ovv:DrillingAndFieldServicesCommitments


Contractual
Period End2021-06-302020-12-312020-09-30
Value1.03612
Percentage of ContractualObligationDueInNextTwelveMonths0.14.61.7

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value753769729675
Percentage of ContractualObligationDueInNextTwelveMonths98.698.793.796.3

us-gaap:ContractualObligationDueInSecondYear

us-gaap:ContractualObligationDueInSecondYear


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value699729757656
Percentage of ContractualObligationDueInSecondYear100.0100.0100.0100.0

us-gaap:ContractualObligationDueInSecondYear us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value6.06.010.011
Percentage of ContractualObligationDueInSecondYear0.90.81.31.7

ovv:DrillingAndFieldServicesCommitments


Contractual
Period End2020-09-30
Value1.0
Percentage of ContractualObligationDueInSecondYear0.2

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value693723747644
Percentage of ContractualObligationDueInSecondYear99.199.298.798.2

us-gaap:ContractualObligationDueInThirdYear

us-gaap:ContractualObligationDueInThirdYear


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value503522715548
Percentage of ContractualObligationDueInThirdYear100.0100.0100.0100.0

us-gaap:ContractualObligationDueInThirdYear us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value6.06.06.07.0
Percentage of ContractualObligationDueInThirdYear1.21.10.81.3

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value497516709541
Percentage of ContractualObligationDueInThirdYear98.898.999.298.7

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear


Contractual
Period End2021-06-302021-03-312020-09-30
Value425610213
Percentage of ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear100.0100.0100.0

us-gaap:ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear us-gaap:TypeOfArrangement

ovv:BuildingLeases


Contractual
Period End2021-06-302021-03-312020-09-30
Value6.09.03.0
Percentage of ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear1.41.51.4

ovv:DrillingAndFieldServicesCommitments


Contractual
Period End2021-06-302021-03-312020-09-30
Value523937
Percentage of ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear12.26.417.4

ovv:TransporationAndProcessingCommitments


Contractual
Period End2021-06-302021-03-312020-09-30
Value367562173
Percentage of ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear86.492.181.2

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value52596349680970597274690368594211
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentRepurchasedFaceAmount

us-gaap:DebtInstrumentRepurchasedFaceAmount


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value302252137100
Percentage of DebtInstrumentRepurchasedFaceAmount100.0100.0100.0100.0

us-gaap:DebtInstrumentRepurchasedFaceAmount us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

ovv:FivePointOneFivePercentSeniorNotes, ovv:SeniorNotesDueNovemberTwoThousandFortyOne


Debt
Period End2020-12-312020-09-302020-06-30
Value41328.0
Percentage of DebtInstrumentRepurchasedFaceAmount13.612.75.8

ovv:FivePointSeventyFiveSeniorNotes, ovv:SeniorNotesDueJanuaryThirtyTwoThousandTwentyTwo


Debt
Period End2021-06-30
Value600
Percentage of DebtInstrumentRepurchasedFaceAmount0.0

ovv:FivePointSeventyFiveSeniorNotes, ovv:SeniorNotesDueJanuaryTwoThousandTwentyTwo


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value1501459090
Percentage of DebtInstrumentRepurchasedFaceAmount49.757.565.790.0

ovv:ThreePointNinePercentSeniorNotes, ovv:SeniorNotesDueNovemberTwoThousandTwentyOne


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value824610.010.0
Percentage of DebtInstrumentRepurchasedFaceAmount27.218.37.310.0

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtInstrumentUnamortizedDiscount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3334353636373435
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationLiabilityCurrent

us-gaap:DeferredCompensationLiabilityCurrent


Deferred
Period End2020-12-312019-12-312018-12-31
Value2540131
Percentage of DeferredCompensationLiabilityCurrent100.0100.0100.0

us-gaap:DeferredCompensationShareBasedArrangementsLiabilityCurrent

us-gaap:DeferredCompensationShareBasedArrangementsLiabilityCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value70402524244.040131
Percentage of DeferredCompensationShareBasedArrangementsLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityClassifiedNoncurrent

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityClassifiedNoncurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value21119.023194.03834
Percentage of DeferredCompensationSharebasedArrangementsLiabilityClassifiedNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value91513447438.078165327
Percentage of DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-31
Value20217
Percentage of DeferredIncomeTaxLiabilities100.0100.0

us-gaap:DeferredIncomeTaxLiabilities us-gaap:StatementGeographical

country:CA


Deferred
Period End2020-12-312019-12-31
Value2028
Percentage of DeferredIncomeTaxLiabilities100.012.9

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsDerivativeInstruments


Deferred
Period End2020-12-312019-12-312018-12-31
Value488.00.0
Percentage of DeferredTaxAssetsDerivativeInstruments100.0100.00.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value8.01438
Percentage of DeferredTaxAssetsOther100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-31
Value107168278
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-31
Value494666
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals


Deferred
Period End2020-12-312019-12-312018-12-31
Value273279
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value2310.010.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-31
Value241554591
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains

us-gaap:DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains


Deferred
Period End2020-12-312019-12-312018-12-31
Value212.00.0
Percentage of DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains100.0100.00.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation


Defined
Period End2020-12-312019-12-312018-12-31
Value299295267
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-64.0-71.0-52.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value191623
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax-29.7-22.5-44.2

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value839748
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-26.0-21.0-28.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax-31.3-21.6-58.3

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value1926-4.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-7.0-5.0-5.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax-36.8-19.2125.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-89000000.0-87000000.0-73000000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-18000000.0-9000000.0-14000000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet20.210.319.2

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value11124.0
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value2.090.02950.0404
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value2.250.030.035
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate107.7101.786.6

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value6.280.06270.0627
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value3.110.03090.0312
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease49.549.349.8

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value89877385
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value211209196226
Percentage of DefinedBenefitPlanBenefitObligation237.1240.2268.5265.9

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value2628
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value5762
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter219.2221.4

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value10.09.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value1314
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths130.0155.6

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value7.08.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value8.09.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value1314
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree162.5155.6

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value1314
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2020-12-312019-12-312018-12-31
Value193200182
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories

ovv:ForeignPrivateEquityFunds


Defined
Period End2020-12-312019-12-312018-12-31
Value606960
Percentage of DefinedBenefitPlanFairValueOfPlanAssets31.134.533.0

us-gaap:FixedIncomeFunds


Defined
Period End2020-12-312019-12-312018-12-31
Value10710596
Percentage of DefinedBenefitPlanFairValueOfPlanAssets55.452.552.7

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel

ovv:ForeignPrivateEquityFunds, us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-31
Value606960
Percentage of DefinedBenefitPlanFairValueOfPlanAssets31.134.533.0

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel1


Defined
Period End2020-12-312019-12-312018-12-31
Value252626
Percentage of DefinedBenefitPlanFairValueOfPlanAssets13.013.014.3

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-31
Value1.00.00.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.50.00.0

us-gaap:FixedIncomeFunds, us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-31
Value10710596
Percentage of DefinedBenefitPlanFairValueOfPlanAssets55.452.552.7

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Defined
Period End2020-12-312019-12-312018-12-31
Value252626
Percentage of DefinedBenefitPlanFairValueOfPlanAssets13.013.014.3

us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-31
Value168174156
Percentage of DefinedBenefitPlanFairValueOfPlanAssets87.087.085.7

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value193200182210
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.00.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-89000000.0-87000000.0-73000000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value-18000000.0-9000000.0-14000000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan20.210.319.2

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value6.420.06610.06990.0698
Percentage of DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value898773
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value697266
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation77.582.890.4

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value405149
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets100.0100.0100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value898773
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value697267
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation77.582.891.8

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value5.00.050.050.05
Percentage of DefinedBenefitPlanUltimateHealthCareCostTrendRate1100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

ovv:DefinedBenefitPlanEquitySecuritiesUSAndForeign


Defined
Period End2020-12-312019-12-312018-12-31
Value31.00.320.31
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:InvestmentType

us-gaap:Bonds


Defined
Period End2020-12-312019-12-312018-12-31
Value69.00.680.69
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations222.6212.5222.6

us-gaap:DerivativeAssetFairValueGrossLiability us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeAssetFairValueGrossLiability

us-gaap:OtherCurrentAssets, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value125859691491306777
Percentage of DerivativeAssetFairValueGrossLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract


Derivative
Period End2021-06-302021-03-312019-12-31
Value15170.0
Percentage of DerivativeAssetFairValueGrossLiability125.029.30.0

us-gaap:OtherNoncurrentAssets, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.05.03.08.04.05.04.016
Percentage of DerivativeAssetFairValueGrossLiability25.08.65.111.62.73.86.020.8

us-gaap:DerivativeAssets

us-gaap:DerivativeAssets


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.01641178349959150715
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsCurrent

us-gaap:DerivativeAssetsCurrent


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.01137170347958148554
Percentage of DerivativeAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsCurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:OtherCurrentAssets, us-gaap:CommodityContract


Derivative
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4.011160347958135554
Percentage of DerivativeAssetsCurrent36.429.794.1100.0100.091.2100.0

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value3.07.02610.013
Percentage of DerivativeAssetsCurrent100.063.670.35.98.8

us-gaap:DerivativeAssetsNoncurrent

us-gaap:DerivativeAssetsNoncurrent


Derivative
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5.04.08.02.01.02.0161
Percentage of DerivativeAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:OtherNoncurrentAssets, us-gaap:CommodityContract


Derivative
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5.04.06.00.00.02.0161
Percentage of DerivativeAssetsNoncurrent100.0100.075.00.00.0100.0100.0

us-gaap:OtherNoncurrentAssets, us-gaap:ForeignExchangeContract


Derivative
Period End2020-09-302020-06-302020-03-31
Value2.02.01.0
Percentage of DerivativeAssetsNoncurrent25.0100.0100.0

us-gaap:DerivativeAverageForwardExchangeRate1

us-gaap:DerivativeAverageForwardExchangeRate1


Derivative
Period End2021-06-302021-03-312020-12-31
Value1.3721.3720.7289
Percentage of DerivativeAverageForwardExchangeRate1100.0100.0100.0

us-gaap:DerivativeAveragePriceRiskOptionStrikePrice us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:OpenOptionContractsWrittenType, us-gaap:Position

us-gaap:DerivativeAveragePriceRiskOptionStrikePrice

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCostlessCollarsMaturingTwoThousandAndTwentyTwo, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2021-06-302021-03-31
Value2.852.8
Percentage of DerivativeAveragePriceRiskOptionStrikePrice100.0100.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCostlessCollarsMaturingTwoThousandAndTwentyTwo, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2021-06-302021-03-31
Value2.552.5
Percentage of DerivativeAveragePriceRiskOptionStrikePrice89.589.3

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingNextTwelveMonths, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2020-12-312019-12-31
Value3.412.72
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingNextTwelveMonths, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2020-12-312019-12-31
Value2.882.6
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingNextTwelveMonths, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2020-12-312019-12-31
Value2.52.25
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyOne, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value3.363.363.353.22
Percentage of DerivativeAveragePriceRiskOptionStrikePrice117.9120.00.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyOne, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value2.882.882.872.75
Percentage of DerivativeAveragePriceRiskOptionStrikePrice101.1102.90.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyOne, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value2.52.52.492.5
Percentage of DerivativeAveragePriceRiskOptionStrikePrice87.789.30.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2021-06-30
Value3.02
Percentage of DerivativeAveragePriceRiskOptionStrikePrice106.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2021-06-30
Value2.75
Percentage of DerivativeAveragePriceRiskOptionStrikePrice96.5

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeThreeWayOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2021-06-30
Value2.0
Percentage of DerivativeAveragePriceRiskOptionStrikePrice70.2

srt:OilReserves, ovv:WestTexasIntermediateCostlessCollarsMaturingNextTwelveMonths, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2020-12-312019-12-31
Value45.8468.71
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:OilReserves, ovv:WestTexasIntermediateCostlessCollarsMaturingNextTwelveMonths, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2020-12-312019-12-31
Value35.050.0
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:OilReserves, ovv:WestTexasIntermediateCostlessCollarsMaturingTwoThousandAndTwentyOne, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value45.8445.8445.8445.9
Percentage of DerivativeAveragePriceRiskOptionStrikePrice1608.41637.10.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingNextTwelveMonths, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2020-12-312019-12-31
Value50.2661.68
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingNextTwelveMonths, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2020-12-312019-12-31
Value39.9553.44
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingNextTwelveMonths, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2020-12-312019-12-31
Value31.243.44
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwenty, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2020-09-302020-06-302020-03-31
Value61.4661.4661.68
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwenty, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2020-09-302020-06-302020-03-31
Value53.3653.3653.44
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwenty, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2020-09-302020-06-302020-03-31
Value43.3643.3643.44
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyOne, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value53.9253.1350.2750.0
Percentage of DerivativeAveragePriceRiskOptionStrikePrice1891.91897.50.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyOne, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value44.6643.8539.6135.29
Percentage of DerivativeAveragePriceRiskOptionStrikePrice1567.01566.10.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyOne, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value34.7934.1929.3924.51
Percentage of DerivativeAveragePriceRiskOptionStrikePrice1220.71221.10.00.0

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:CallOption, us-gaap:Short


Derivative
Period End2021-06-30
Value70.1
Percentage of DerivativeAveragePriceRiskOptionStrikePrice2459.6

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:PutOption, us-gaap:Long


Derivative
Period End2021-06-30
Value60.17
Percentage of DerivativeAveragePriceRiskOptionStrikePrice2111.2

srt:OilReserves, ovv:WestTexasIntermediateThreeWayOptionsMaturingTwoThousandAndTwentyTwo, us-gaap:PutOption, us-gaap:Short


Derivative
Period End2021-06-30
Value48.46
Percentage of DerivativeAveragePriceRiskOptionStrikePrice1700.4

us-gaap:DerivativeAveragePriceRiskOptionStrikePrice us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCallOptionsMaturingAfterTwoYears, us-gaap:Short


Derivative
Period End2020-12-31
Value2.38
Percentage of DerivativeAveragePriceRiskOptionStrikePrice0.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:OtherCurrentAssets, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1262702294961088202631
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value18242610.013
Percentage of DerivativeFairValueOfDerivativeAsset150.038.737.14.46.4

us-gaap:OtherNoncurrentAssets, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.010.07.0144.05.06.0177
Percentage of DerivativeFairValueOfDerivativeAsset25.016.110.06.10.80.53.028.1

us-gaap:OtherNoncurrentAssets, us-gaap:ForeignExchangeContract


Derivative
Period End2020-09-302020-06-302020-03-31
Value2.02.01.0
Percentage of DerivativeFairValueOfDerivativeAsset0.90.40.1

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:OtherCurrentAssets, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value126270143411928202492
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.062.482.985.3100.078.0

us-gaap:OtherCurrentAssets, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel3


Derivative
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value86831510.0139
Percentage of DerivativeFairValueOfDerivativeAsset37.616.713.90.022.0

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value18242610.013
Percentage of DerivativeFairValueOfDerivativeAsset150.038.737.14.46.4

us-gaap:OtherNoncurrentAssets, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.010.07.0144.05.06.0177
Percentage of DerivativeFairValueOfDerivativeAsset25.016.110.06.10.80.53.028.1

us-gaap:OtherNoncurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:FairValueInputsLevel2


Derivative
Period End2020-09-302020-06-302020-03-31
Value2.02.01.0
Percentage of DerivativeFairValueOfDerivativeAsset0.90.40.1

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:OtherCurrentLiabilities, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value91947418913420013718181
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value186111128162112787238
Percentage of DerivativeFairValueOfDerivativeLiability20.223.467.7120.956.056.939.846.9

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:OtherCurrentLiabilities, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel1


Derivative
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.01.02.00.00.01.00.0
Percentage of DerivativeFairValueOfDerivativeLiability0.60.51.50.00.00.60.0

us-gaap:OtherCurrentLiabilities, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value51924111412920013713981
Percentage of DerivativeFairValueOfDerivativeLiability56.550.860.396.3100.0100.076.8100.0

us-gaap:OtherCurrentLiabilities, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel3


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value400230743.00.00.0410.0
Percentage of DerivativeFairValueOfDerivativeLiability43.548.539.22.20.00.022.70.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value156111128158110776138
Percentage of DerivativeFairValueOfDerivativeLiability17.023.467.7117.955.056.233.746.9

us-gaap:OtherNoncurrentLiabilities, us-gaap:CommodityContract, us-gaap:FairValueInputsLevel3


Derivative
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312018-12-31
Value304.02.01.0110.0
Percentage of DerivativeFairValueOfDerivativeLiability3.33.01.00.76.10.0

us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilities


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value107550525521916412118247
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesCurrent

us-gaap:DerivativeLiabilitiesCurrent


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-01-012018-12-31
Value8923991306555401142525
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesCurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:OtherCurrentLiabilities, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value90741613065517.01144.0
Percentage of DerivativeLiabilitiesCurrent101.7104.3100.0100.092.717.5100.016.0

us-gaap:OtherCurrentLiabilities, us-gaap:ForeignExchangeContract


Derivative
Period End2021-06-302021-03-312020-06-302020-03-312018-12-31
Value-15.0-17.04.03321
Percentage of DerivativeLiabilitiesCurrent-1.7-4.37.382.584.0

us-gaap:DerivativeLiabilitiesNoncurrent

us-gaap:DerivativeLiabilitiesNoncurrent


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value183106125154109816822
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:OtherNoncurrentLiabilities, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value183106125154108736822
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.099.190.1100.0100.0

us-gaap:DerivativeLiabilityFairValueGrossAsset us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeLiabilityFairValueGrossAsset

us-gaap:OtherCurrentLiabilities, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value125859691491306777
Percentage of DerivativeLiabilityFairValueGrossAsset100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCurrentLiabilities, us-gaap:ForeignExchangeContract


Derivative
Period End2021-06-302021-03-312020-06-302020-03-312018-12-31
Value15170.00.00.0
Percentage of DerivativeLiabilityFairValueGrossAsset125.029.30.00.00.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.05.03.08.04.05.04.016
Percentage of DerivativeLiabilityFairValueGrossAsset25.08.65.111.62.73.86.020.8

us-gaap:DerivativeNotionalAmount

us-gaap:DerivativeNotionalAmount


Derivative
Period End2021-06-302021-03-312020-12-31
Value175263350
Percentage of DerivativeNotionalAmount100.0100.0100.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

ovv:CurrencySwapsMaturingRemainderOfFiscalYear


Derivative
Period End2020-09-302020-06-302020-03-31
Value215429644
Percentage of DerivativeNotionalAmount0.00.00.0

us-gaap:DerivativeSwapTypeAverageFixedPrice us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeSwapTypeAverageFixedPrice

srt:NaturalGasLiquidsReserves, ovv:ButaneFixedPriceMaturingNextTwelveMonths


Derivative
Period End2020-12-312019-12-31
Value24.8323.54
Percentage of DerivativeSwapTypeAverageFixedPrice100.0100.0

srt:NaturalGasLiquidsReserves, ovv:EthaneFixedPriceContractMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-30
Value10.38
Percentage of DerivativeSwapTypeAverageFixedPrice0.0

srt:NaturalGasLiquidsReserves, ovv:PropaneFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value17.9417.9421.34
Percentage of DerivativeSwapTypeAverageFixedPrice0.00.00.0

srt:NaturalGasLiquidsReserves, ovv:PropaneFixedPriceMaturingNextTwelveMonths


Derivative
Period End2020-12-312019-12-31
Value24.6921.34
Percentage of DerivativeSwapTypeAverageFixedPrice99.490.7

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceContractMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value2.652.572.65
Percentage of DerivativeSwapTypeAverageFixedPrice0.00.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceContractMaturingTwoThousandAndTwentyTwo


Derivative
Period End2021-06-302021-03-31
Value2.672.6
Percentage of DerivativeSwapTypeAverageFixedPrice0.00.0

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceMaturingNextTwelveMonths


Derivative
Period End2020-12-312019-12-31
Value2.512.65
Percentage of DerivativeSwapTypeAverageFixedPrice10.111.3

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeFixedPriceSwaptions


Derivative
Period End2020-12-312019-12-31
Value2.512.56
Percentage of DerivativeSwapTypeAverageFixedPrice10.110.9

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceContractsMaturingTwoThousandAndTwenty


Derivative
Period End2020-09-302020-06-302020-03-31
Value52.9547.5845.36
Percentage of DerivativeSwapTypeAverageFixedPrice0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceContractsMaturingTwoThousandAndTwentyOne


Derivative
Period End2021-06-302021-03-312020-09-30
Value46.3746.8344.08
Percentage of DerivativeSwapTypeAverageFixedPrice0.00.00.0

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceContractsMaturingTwoThousandAndTwentyTwo


Derivative
Period End2021-06-30
Value60.16
Percentage of DerivativeSwapTypeAverageFixedPrice0.0

srt:OilReserves, ovv:WestTexasIntermediateFixedPriceMaturingNextTwelveMonths


Derivative
Period End2020-12-312019-12-31
Value43.6157.56
Percentage of DerivativeSwapTypeAverageFixedPrice175.6244.5

us-gaap:DerivativeSwapTypeAverageFixedPrice us-gaap:ReserveQuantitiesByTypeOfReserve, us-gaap:DerivativeInstrumentRisk, us-gaap:Position

srt:NaturalGasReserves, ovv:NewYorkMercantileExchangeCallOptionsMaturingAfterTwoYears, us-gaap:Short


Derivative
Period End2020-12-31
Value2.38
Percentage of DerivativeSwapTypeAverageFixedPrice9.6

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset

ovv:DuvernayAssets


Embedded
Period End2021-04-28
Value6000000.0
Percentage of EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

ovv:TandemStockAppreciationRights


Employee
Period End2020-12-312019-12-312018-12-31
Value0.10.30.2
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0

us-gaap:PerformanceShares


Employee
Period End2020-12-312019-12-312018-12-31
Value271916
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized27000.06333.38000.0

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2020-12-312019-12-312018-12-31
Value433930
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized43000.013000.015000.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:Currency, us-gaap:AwardType

currency:USD, us-gaap:StockAppreciationRightsSARS


Employee
Period End2020-12-312019-12-312018-12-31
Value0.20.70.3
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized200.0233.3150.0

us-gaap:ExplorationCostsCumulative

us-gaap:ExplorationCostsCumulative


Exploration
Period End2020-12-312019-12-31
Value148141
Percentage of ExplorationCostsCumulative100.0100.0

us-gaap:ExplorationCostsCumulative us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

ovv:Currentyear


Exploration
Period End2020-12-312019-12-31
Value7.03.0
Percentage of ExplorationCostsCumulative4.72.1

ovv:Prioryear


Exploration
Period End2020-12-312019-12-31
Value3.018
Percentage of ExplorationCostsCumulative2.012.8

ovv:SecondPriorYear


Exploration
Period End2020-12-312019-12-31
Value182.0
Percentage of ExplorationCostsCumulative12.21.4

ovv:ThirdPriorYearAndPrevious


Exploration
Period End2020-12-312019-12-31
Value120118
Percentage of ExplorationCostsCumulative81.183.7

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-422.0-230.0-74.07981150-52.01145719139-51.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-31
Value121
Percentage of FinanceLeaseLiability100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2020-12-312019-12-312018-12-31
Value828984
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value363839517599121211
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value133
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value13
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value87
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value9000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value8000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value8000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value8000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value12
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2020-12-312020-09-302019-12-31
Value323437
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization


Finance
Period End2020-12-312020-09-302019-12-31
Value692669677
Percentage of FinanceLeaseRightOfUseAssetAccumulatedAmortization100.0100.0100.0

us-gaap:ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet

us-gaap:ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-31
Value1824261213-21.0
Percentage of ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet100.0100.0100.0100.0100.0100.0

us-gaap:GuaranteeObligationsCurrentCarryingValue

us-gaap:GuaranteeObligationsCurrentCarryingValue


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value6.06.08.01111259.014
Percentage of GuaranteeObligationsCurrentCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GuaranteeObligationsCurrentCarryingValue us-gaap:BalanceSheetLocation

us-gaap:AccountsPayableAndAccruedLiabilities


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1.01.01.02.02.06.02.04.0
Percentage of GuaranteeObligationsCurrentCarryingValue16.716.712.518.218.224.022.228.6

us-gaap:OtherNoncurrentLiabilities


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5.05.07.09.09.0197.010.0
Percentage of GuaranteeObligationsCurrentCarryingValue83.383.387.581.881.876.077.871.4

us-gaap:GuaranteeObligationsCurrentCarryingValue us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:FairValueInputsLevel2


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1.01.01.02.02.06.02.04.0
Percentage of GuaranteeObligationsCurrentCarryingValue16.716.712.518.218.224.022.228.6

us-gaap:OtherNoncurrentLiabilities, us-gaap:FairValueInputsLevel2


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5.05.07.09.09.0197.010.0
Percentage of GuaranteeObligationsCurrentCarryingValue83.383.387.581.881.876.077.871.4

us-gaap:GuaranteeObligationsCurrentCarryingValue us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementBasis

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:CarryingReportedAmountFairValueDisclosure


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1.01.01.02.02.06.02.0
Percentage of GuaranteeObligationsCurrentCarryingValue16.716.712.518.218.224.022.2

us-gaap:OtherNoncurrentLiabilities, us-gaap:CarryingReportedAmountFairValueDisclosure


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5.05.07.09.09.0197.0
Percentage of GuaranteeObligationsCurrentCarryingValue83.383.387.581.881.876.077.8

us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:GuaranteeObligationsMaximumExposure


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-30
Value69768295
Percentage of GuaranteeObligationsMaximumExposure100.0100.0100.0100.0

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value96130272251269283296275
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2020-12-312019-12-312018-12-31
Value1258369
Percentage of InterestPayableCurrent100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value121
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LineOfCredit us-gaap:CreditFacility

us-gaap:LineOfCredit

us-gaap:RevolvingCreditFacility


Line
Period End2020-12-312020-09-30
Value5981010
Percentage of LineOfCredit100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

srt:ParentCompany, us-gaap:RevolvingCreditFacility, us-gaap:CommercialPaper


Line
Period End2020-12-31
Value2500
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical, us-gaap:CreditFacility

srt:SubsidiaryIssuer, country:CA, us-gaap:RevolvingCreditFacility


Line
Period End2020-12-31
Value1500
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity60.0

us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtFairValue


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value64097206737968046808400576574511
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value3741
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-31
Value518
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-12-31
Value1950
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-12-31
Value600
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:LongtermDebtWeightedAverageInterestRate us-gaap:LongtermDebtType

us-gaap:LongtermDebtWeightedAverageInterestRate

us-gaap:CommercialPaper


Longterm
Period End2021-03-312020-12-312020-09-30
Value1.031.040.87
Percentage of LongtermDebtWeightedAverageInterestRate100.0100.0100.0

us-gaap:NontradeReceivablesNoncurrent

us-gaap:NontradeReceivablesNoncurrent


Nontrade
Period End2020-12-312019-12-312018-12-31
Value648179
Percentage of NontradeReceivablesNoncurrent100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:StatementGeographical

us-gaap:OperatingLossCarryforwards

country:US


Operating
Period End2020-12-312019-12-31
Value48015754
Percentage of OperatingLossCarryforwards100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:StatementGeographical, us-gaap:IncomeTaxAuthority

country:CA, us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-31
Value19341636
Percentage of OperatingLossCarryforwards40.328.4

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


Other
Period End2020-12-312019-12-312018-12-31
Value505137
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0

us-gaap:OtherSundryLiabilitiesNoncurrent

us-gaap:OtherSundryLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1616161617162018
Percentage of OtherSundryLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-31
Value10000000.09000000.06000000.0
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities100.0100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid