3.22.0.1 html 480 771 1 true 159 0 false 16 false false R1.htm 100000 - Document - Document And Entity Information Sheet http://www.dvn.com/20211231/taxonomy/role/DocumentDocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 100010 - Statement - Consolidated Statements of Comprehensive Earnings Sheet http://www.dvn.com/20211231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarnings Consolidated Statements of Comprehensive Earnings Statements 2 false false R3.htm 100020 - Statement - Consolidated Statements Of Cash Flows Sheet http://www.dvn.com/20211231/taxonomy/role/StatementConsolidatedStatementsOfCashFlows Consolidated Statements Of Cash Flows Statements 3 false false R4.htm 100030 - Statement - Consolidated Balance Sheets Sheet http://www.dvn.com/20211231/taxonomy/role/StatementConsolidatedBalanceSheets Consolidated Balance Sheets Statements 4 false false R5.htm 100040 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.dvn.com/20211231/taxonomy/role/StatementConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 5 false false R6.htm 100050 - Statement - Consolidated Statements Of Equity Sheet http://www.dvn.com/20211231/taxonomy/role/StatementConsolidatedStatementsOfEquity Consolidated Statements Of Equity Statements 6 false false R7.htm 100060 - Disclosure - Summary Of Significant Accounting Policies Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies Summary Of Significant Accounting Policies Notes 7 false false R8.htm 100070 - Disclosure - Acquisitions and Divestitures Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionsAndDivestitures Acquisitions and Divestitures Notes 8 false false R9.htm 100080 - Disclosure - Derivative Financial Instruments Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstruments Derivative Financial Instruments Notes 9 false false R10.htm 100090 - Disclosure - Share-Based Compensation Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensation Share-Based Compensation Notes 10 false false R11.htm 100100 - Disclosure - Asset Impairments Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairments Asset Impairments Notes 11 false false R12.htm 100110 - Disclosure - Restructuring and Transaction Costs Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCosts Restructuring and Transaction Costs Notes 12 false false R13.htm 100120 - Disclosure - Other, Net Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherNet Other, Net Notes 13 false false R14.htm 100130 - Disclosure - Income Taxes Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxes Income Taxes Notes 14 false false R15.htm 100140 - Disclosure - Net Earnings (Loss) Per Share from Continuing Operations Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureNetEarningsLossPerShareFromContinuingOperations Net Earnings (Loss) Per Share from Continuing Operations Notes 15 false false R16.htm 100150 - Disclosure - Other Comprehensive Earnings (Loss) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherComprehensiveEarningsLoss Other Comprehensive Earnings (Loss) Notes 16 false false R17.htm 100160 - Disclosure - Supplemental Information To Statements Of Cash Flows Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlows Supplemental Information To Statements Of Cash Flows Notes 17 false false R18.htm 100170 - Disclosure - Accounts Receivable Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAccountsReceivable Accounts Receivable Notes 18 false false R19.htm 100180 - Disclosure - Property, Plant and Equipment Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipment Property, Plant and Equipment Notes 19 false false R20.htm 100190 - Disclosure - Debt And Related Expenses Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpenses Debt And Related Expenses Notes 20 false false R21.htm 100200 - Disclosure - Leases Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeases Leases Notes 21 false false R22.htm 100210 - Disclosure - Asset Retirement Obligations Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetRetirementObligations Asset Retirement Obligations Notes 22 false false R23.htm 100220 - Disclosure - Retirement Plans Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlans Retirement Plans Notes 23 false false R24.htm 100230 - Disclosure - Stockholders' Equity Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquity Stockholders' Equity Notes 24 false false R25.htm 100240 - Disclosure - Discontinued Operations Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperations Discontinued Operations Notes 25 false false R26.htm 100250 - Disclosure - Commitments And Contingencies Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureCommitmentsAndContingencies Commitments And Contingencies Notes 26 false false R27.htm 100260 - Disclosure - Fair Value Measurements Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureFairValueMeasurements Fair Value Measurements Notes 27 false false R28.htm 100270 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnaudited Supplemental Information on Oil and Gas Operations (Unaudited) Notes 28 false false R29.htm 100280 - Disclosure - Summary Of Significant Accounting Policies (Policies) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary Of Significant Accounting Policies (Policies) Policies http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies 29 false false R30.htm 100290 - Disclosure - Summary Of Significant Accounting Policies (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables Summary Of Significant Accounting Policies (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies 30 false false R31.htm 100300 - Disclosure - Acquisitions and Divestitures (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionsAndDivestituresTables Acquisitions and Divestitures (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionsAndDivestitures 31 false false R32.htm 100310 - Disclosure - Derivative Financial Instruments (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsTables Derivative Financial Instruments (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstruments 32 false false R33.htm 100320 - Disclosure - Share-Based Compensation (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables Share-Based Compensation (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensation 33 false false R34.htm 100330 - Disclosure - Asset Impairments (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairmentsTables Asset Impairments (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairments 34 false false R35.htm 100340 - Disclosure - Restructuring and Transaction Costs (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsTables Restructuring and Transaction Costs (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCosts 35 false false R36.htm 100350 - Disclosure - Other, Net (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherNetTables Other, Net (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherNet 36 false false R37.htm 100360 - Disclosure - Income Taxes (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxes 37 false false R38.htm 100370 - Disclosure - Net Earnings (Loss) Per Share from Continuing Operations (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureNetEarningsLossPerShareFromContinuingOperationsTables Net Earnings (Loss) Per Share from Continuing Operations (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureNetEarningsLossPerShareFromContinuingOperations 38 false false R39.htm 100380 - Disclosure - Other Comprehensive Earnings (Loss) (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherComprehensiveEarningsLossTables Other Comprehensive Earnings (Loss) (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherComprehensiveEarningsLoss 39 false false R40.htm 100390 - Disclosure - Supplemental Information To Statements Of Cash Flows (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlowsTables Supplemental Information To Statements Of Cash Flows (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlows 40 false false R41.htm 100400 - Disclosure - Accounts Receivable (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAccountsReceivableTables Accounts Receivable (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureAccountsReceivable 41 false false R42.htm 100410 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTables Property, Plant and Equipment (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipment 42 false false R43.htm 100420 - Disclosure - Debt And Related Expenses (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables Debt And Related Expenses (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpenses 43 false false R44.htm 100430 - Disclosure - Leases (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesTables Leases (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureLeases 44 false false R45.htm 100440 - Disclosure - Asset Retirement Obligations (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetRetirementObligationsTables Asset Retirement Obligations (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetRetirementObligations 45 false false R46.htm 100450 - Disclosure - Retirement Plans (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansTables Retirement Plans (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlans 46 false false R47.htm 100460 - Disclosure - Stockholders' Equity (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquityTables Stockholders' Equity (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquity 47 false false R48.htm 100470 - Disclosure - Discontinued Operations (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperationsTables Discontinued Operations (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperations 48 false false R49.htm 100480 - Disclosure - Commitments And Contingencies (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables Commitments And Contingencies (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureCommitmentsAndContingencies 49 false false R50.htm 100490 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureFairValueMeasurements 50 false false R51.htm 100500 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Tables) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables Supplemental Information on Oil and Gas Operations (Unaudited) (Tables) Tables http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnaudited 51 false false R52.htm 100510 - Disclosure - Summary Of Significant Accounting Policies (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesNarrativeDetails Summary Of Significant Accounting Policies (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables 52 false false R53.htm 100520 - Disclosure - Summary Of Significant Accounting Policies (Schedule of Components of Investments) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfComponentsOfInvestmentsDetails Summary Of Significant Accounting Policies (Schedule of Components of Investments) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables 53 false false R54.htm 100530 - Disclosure - Summary Of Significant Accounting Policies (Schedule Of Additional Investment Information) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfAdditionalInvestmentInformationDetails Summary Of Significant Accounting Policies (Schedule Of Additional Investment Information) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables 54 false false R55.htm 100540 - Disclosure - Summary of Significant Accounting Policies (Schedule of Revenue from Contracts with Customers Disaggregated Based on Type of Good) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfRevenueFromContractsWithCustomersDisaggregatedBasedOnTypeOfGoodDetails Summary of Significant Accounting Policies (Schedule of Revenue from Contracts with Customers Disaggregated Based on Type of Good) (Details) Details 55 false false R56.htm 100550 - Disclosure - Acquisition and Divestitures (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionAndDivestituresNarrativeDetails Acquisition and Divestitures (Narrative) (Details) Details 56 false false R57.htm 100560 - Disclosure - Acquisition and Divestitures (Schedule of Preliminary Allocation of the Total Purchase Price) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionAndDivestituresScheduleOfPreliminaryAllocationOfTotalPurchasePriceDetails Acquisition and Divestitures (Schedule of Preliminary Allocation of the Total Purchase Price) (Details) Details 57 false false R58.htm 100570 - Disclosure - Acquisition and Divestitures (Schedule of WPX Revenue and Earnings Included In Devon's Consolidated Comprehensive Statements Of Earnings) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionAndDivestituresScheduleOfWPXRevenueAndEarningsIncludedInDevonSConsolidatedComprehensiveStatementsOfEarningsDetails Acquisition and Divestitures (Schedule of WPX Revenue and Earnings Included In Devon's Consolidated Comprehensive Statements Of Earnings) (Details) Details 58 false false R59.htm 100580 - Disclosure - Acquisition and Divestitures (Schedule of Pro Forma Adjustments to Confirm Acquisition) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAcquisitionAndDivestituresScheduleOfProFormaAdjustmentsToConfirmAcquisitionDetails Acquisition and Divestitures (Schedule of Pro Forma Adjustments to Confirm Acquisition) (Details) Details 59 false false R60.htm 100590 - Disclosure - Derivative Financial Instruments (Schedule Of Open Oil Derivative Positions) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsScheduleOfOpenOilDerivativePositionsDetails Derivative Financial Instruments (Schedule Of Open Oil Derivative Positions) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsTables 60 false false R61.htm 100600 - Disclosure - Derivative Financial Instruments (Schedule Of Open Natural Gas Derivative Positions) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsScheduleOfOpenNaturalGasDerivativePositionsDetails Derivative Financial Instruments (Schedule Of Open Natural Gas Derivative Positions) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsTables 61 false false R62.htm 100610 - Disclosure - Derivative Financial Instruments (Schedule Of Open Natural Gas Derivative Positions) (Parenthetical) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsScheduleOfOpenNaturalGasDerivativePositionsParentheticalDetails Derivative Financial Instruments (Schedule Of Open Natural Gas Derivative Positions) (Parenthetical) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsTables 62 false false R63.htm 100620 - Disclosure - Derivative Financial Instruments (Schedule Of Derivative Financial Instruments Included In The Consolidated Balance Sheets) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsScheduleOfDerivativeFinancialInstrumentsIncludedInTheConsolidatedBalanceSheetsDetails Derivative Financial Instruments (Schedule Of Derivative Financial Instruments Included In The Consolidated Balance Sheets) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsTables 63 false false R64.htm 100630 - Disclosure - Share-Based Compensation (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationNarrativeDetails Share-Based Compensation (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 64 false false R65.htm 100640 - Disclosure - Share-Based Compensation (Schedule of Share-Based Compensation Expense Included In The Consolidated Statements Of Comprehensive Earnings) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationScheduleOfShareBasedCompensationExpenseIncludedInTheConsolidatedStatementsOfComprehensiveEarningsDetails Share-Based Compensation (Schedule of Share-Based Compensation Expense Included In The Consolidated Statements Of Comprehensive Earnings) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 65 false false R66.htm 100650 - Disclosure - Share-Based Compensation (Summary of Unvested Restricted Stock Awards, Performance-Based Restricted Stock Awards And Performance Share Units) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationSummaryOfUnvestedRestrictedStockAwardsPerformanceBasedRestrictedStockAwardsAndPerformanceShareUnitsDetails Share-Based Compensation (Summary of Unvested Restricted Stock Awards, Performance-Based Restricted Stock Awards And Performance Share Units) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 66 false false R67.htm 100660 - Disclosure - Share-Based Compensation (Summary of Unvested Restricted Stock Awards, Performance-Based Restricted Stock Awards And Performance Share Units) (Parenthetical) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationSummaryOfUnvestedRestrictedStockAwardsPerformanceBasedRestrictedStockAwardsAndPerformanceShareUnitsParentheticalDetails Share-Based Compensation (Summary of Unvested Restricted Stock Awards, Performance-Based Restricted Stock Awards And Performance Share Units) (Parenthetical) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 67 false false R68.htm 100670 - Disclosure - Share-Based Compensation (Schedule of Aggregate Fair Value of Restricted Stock, Performance-Based Restricted Stock And Performance Shares, Awards And Units, That Vested During The Period) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationScheduleOfAggregateFairValueOfRestrictedStockPerformanceBasedRestrictedStockAndPerformanceSharesAwardsAndUnitsThatVestedDuringThePeriodDetails Share-Based Compensation (Schedule of Aggregate Fair Value of Restricted Stock, Performance-Based Restricted Stock And Performance Shares, Awards And Units, That Vested During The Period) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 68 false false R69.htm 100680 - Disclosure - Share-Based Compensation (Summary of Unrecognized Compensation Cost And Weighted Average Period For Recognition) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationSummaryOfUnrecognizedCompensationCostAndWeightedAveragePeriodForRecognitionDetails Share-Based Compensation (Summary of Unrecognized Compensation Cost And Weighted Average Period For Recognition) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 69 false false R70.htm 100690 - Disclosure - Share-Based Compensation (Summary of Performance Share Units Grant-Date Fair Values And Their Related Assumptions) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationSummaryOfPerformanceShareUnitsGrantDateFairValuesAndTheirRelatedAssumptionsDetails Share-Based Compensation (Summary of Performance Share Units Grant-Date Fair Values And Their Related Assumptions) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureShareBasedCompensationTables 70 false false R71.htm 100700 - Disclosure - Asset Impairments (Summary of Asset Impairments) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairmentsSummaryOfAssetImpairmentsDetails Asset Impairments (Summary of Asset Impairments) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairmentsTables 71 false false R72.htm 100710 - Disclosure - Asset Impairments (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairmentsNarrativeDetails Asset Impairments (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetImpairmentsTables 72 false false R73.htm 100720 - Disclosure - Restructuring and Transaction Costs - (Schedule Of Restructuring And Transaction Costs) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsScheduleOfRestructuringAndTransactionCostsDetails Restructuring and Transaction Costs - (Schedule Of Restructuring And Transaction Costs) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsTables 73 false false R74.htm 100730 - Disclosure - Restructuring and Transaction Costs (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsNarrativeDetails Restructuring and Transaction Costs (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsTables 74 false false R75.htm 100740 - Disclosure - Restructuring and Transaction Costs (Schedule Of The Activity And Balances Associated With Restructuring Liabilities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsScheduleOfTheActivityAndBalancesAssociatedWithRestructuringLiabilitiesDetails Restructuring and Transaction Costs (Schedule Of The Activity And Balances Associated With Restructuring Liabilities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRestructuringAndTransactionCostsTables 75 false false R76.htm 100750 - Disclosure - Other, Net -Summary Of Other Expenses (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherNetSummaryOfOtherExpensesDetails Other, Net -Summary Of Other Expenses (Details) Details 76 false false R77.htm 100760 - Disclosure - Other, Net -Additional Information (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherNetAdditionalInformationDetails Other, Net -Additional Information (Details) Details 77 false false R78.htm 100770 - Disclosure - Income Taxes (Schedule Of Income Tax Expense (Benefit) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfIncomeTaxExpenseBenefitDetails Income Taxes (Schedule Of Income Tax Expense (Benefit) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables 78 false false R79.htm 100780 - Disclosure - Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables 79 false false R80.htm 100790 - Disclosure - Income Taxes (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesNarrativeDetails Income Taxes (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables 80 false false R81.htm 100800 - Disclosure - Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables 81 false false R82.htm 100810 - Disclosure - Income Taxes (Schedule Of Changes In Unrecognized Tax Benefits) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfChangesInUnrecognizedTaxBenefitsDetails Income Taxes (Schedule Of Changes In Unrecognized Tax Benefits) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables 82 false false R83.htm 100820 - Disclosure - Income Taxes (Summary Of The Tax Years By Jurisdiction That Remain Subject To Examination By Taxing Authorities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesSummaryOfTheTaxYearsByJurisdictionThatRemainSubjectToExaminationByTaxingAuthoritiesDetails Income Taxes (Summary Of The Tax Years By Jurisdiction That Remain Subject To Examination By Taxing Authorities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables 83 false false R84.htm 100830 - Disclosure - Net Earnings (Loss) Per Share from Continuing Operations (Net Earnings (Loss) Per Share Computations from Continuing Operations) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureNetEarningsLossPerShareFromContinuingOperationsNetEarningsLossPerShareComputationsFromContinuingOperationsDetails Net Earnings (Loss) Per Share from Continuing Operations (Net Earnings (Loss) Per Share Computations from Continuing Operations) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureNetEarningsLossPerShareFromContinuingOperationsTables 84 false false R85.htm 100840 - Disclosure - Other Comprehensive Earnings (loss) (Components Of Other Comprehensive Earnings (loss)) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherComprehensiveEarningsLossComponentsOfOtherComprehensiveEarningsLossDetails Other Comprehensive Earnings (loss) (Components Of Other Comprehensive Earnings (loss)) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureOtherComprehensiveEarningsLossTables 85 false false R86.htm 100850 - Disclosure - Supplemental Information To Statements Of Cash Flows (Schedule Of Supplemental Information To Statements Of Cash Flows) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlowsScheduleOfSupplementalInformationToStatementsOfCashFlowsDetails Supplemental Information To Statements Of Cash Flows (Schedule Of Supplemental Information To Statements Of Cash Flows) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlowsTables 86 false false R87.htm 100860 - Disclosure - Supplemental Information To Statements Of Cash Flows (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlowsNarrativeDetails Supplemental Information To Statements Of Cash Flows (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationToStatementsOfCashFlowsTables 87 false false R88.htm 100870 - Disclosure - Accounts Receivable (Schedule Of Components Of Accounts Receivable) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAccountsReceivableScheduleOfComponentsOfAccountsReceivableDetails Accounts Receivable (Schedule Of Components Of Accounts Receivable) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureAccountsReceivableTables 88 false false R89.htm 100880 - Disclosure - Property, Plant and Equipment (Table of Property and Equipment, net) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTableOfPropertyAndEquipmentNetDetails Property, Plant and Equipment (Table of Property and Equipment, net) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTables 89 false false R90.htm 100890 - Disclosure - Property, Plant and Equipment (Table of Property and Equipment, net) (Parenthetical) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTableOfPropertyAndEquipmentNetParentheticalDetails Property, Plant and Equipment (Table of Property and Equipment, net) (Parenthetical) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTables 90 false false R91.htm 100900 - Disclosure - Property, Plant and Equipment (Summary of Changes in Suspended Exploratory Well Costs) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfChangesInSuspendedExploratoryWellCostsDetails Property, Plant and Equipment (Summary of Changes in Suspended Exploratory Well Costs) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTables 91 false false R92.htm 100910 - Disclosure - Debt And Related Expenses (Schedule Of Debt Instruments and Balances) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesScheduleOfDebtInstrumentsAndBalancesDetails Debt And Related Expenses (Schedule Of Debt Instruments and Balances) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables 92 false false R93.htm 100920 - Disclosure - Debt And Related Expenses (Schedule Of Debt Instruments and Balances) (Parenthetical) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesScheduleOfDebtInstrumentsAndBalancesParentheticalDetails Debt And Related Expenses (Schedule Of Debt Instruments and Balances) (Parenthetical) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables 93 false false R94.htm 100930 - Disclosure - Debt And Related Expenses (Schedule Of Debt Maturities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesScheduleOfDebtMaturitiesDetails Debt And Related Expenses (Schedule Of Debt Maturities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables 94 false false R95.htm 100940 - Disclosure - Debt And Related Expenses (Schedule of WPX Debt assumed with the Merger) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesScheduleOfWPXDebtAssumedWithMergerDetails Debt And Related Expenses (Schedule of WPX Debt assumed with the Merger) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables 95 false false R96.htm 100950 - Disclosure - Debt And Related Expenses (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesNarrativeDetails Debt And Related Expenses (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables 96 false false R97.htm 100960 - Disclosure - Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesScheduleOfNetFinancingCostComponentsDetails Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDebtAndRelatedExpensesTables 97 false false R98.htm 100970 - Disclosure - Leases (Schedule of Right-of-use Assets and Lease Liabilities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesScheduleOfRightOfUseAssetsAndLeaseLiabilitiesDetails Leases (Schedule of Right-of-use Assets and Lease Liabilities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesTables 98 false false R99.htm 100980 - Disclosure - Leases (Schedule of Total Lease Cost) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesScheduleOfTotalLeaseCostDetails Leases (Schedule of Total Lease Cost) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesTables 99 false false R100.htm 100990 - Disclosure - Leases (Schedule of Additional Lease Information) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesScheduleOfAdditionalLeaseInformationDetails Leases (Schedule of Additional Lease Information) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesTables 100 false false R101.htm 101000 - Disclosure - Leases (Maturities of Lease Liabilities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesMaturitiesOfLeaseLiabilitiesDetails Leases (Maturities of Lease Liabilities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesTables 101 false false R102.htm 101020 - Disclosure - Leases (Schedule of Expected Lease Income ) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesScheduleOfExpectedLeaseIncomeDetails Leases (Schedule of Expected Lease Income ) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureLeasesTables 102 false false R103.htm 101030 - Disclosure - Asset Retirement Obligations (Summary Of Changes In Asset Retirement Obligations) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetRetirementObligationsSummaryOfChangesInAssetRetirementObligationsDetails Asset Retirement Obligations (Summary Of Changes In Asset Retirement Obligations) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureAssetRetirementObligationsTables 103 false false R104.htm 101040 - Disclosure - Retirement Plans (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansNarrativeDetails Retirement Plans (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansTables 104 false false R105.htm 101050 - Disclosure - Retirement Plans (Schedule of Changes In Defined Benefit Plan Obligations) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansScheduleOfChangesInDefinedBenefitPlanObligationsDetails Retirement Plans (Schedule of Changes In Defined Benefit Plan Obligations) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansTables 105 false false R106.htm 101060 - Disclosure - Retirement Plans (Schedule of Projected Benefit Obligation And Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansScheduleOfProjectedBenefitObligationAndAccumulatedBenefitObligationInExcessOfPlanAssetsDetails Retirement Plans (Schedule of Projected Benefit Obligation And Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansTables 106 false false R107.htm 101070 - Disclosure - Retirement Plans (Schedule of Net Periodic Benefit Cost And Other Comprehensive Loss (Earnings) For Pension And Other Postretirement Benefit Plans) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansScheduleOfNetPeriodicBenefitCostAndOtherComprehensiveLossEarningsForPensionAndOtherPostretirementBenefitPlansDetails Retirement Plans (Schedule of Net Periodic Benefit Cost And Other Comprehensive Loss (Earnings) For Pension And Other Postretirement Benefit Plans) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansTables 107 false false R108.htm 101080 - Disclosure - Retirement Plans (Schedule of Assumptions Used To Determine Benefit Obligations And Net Periodic Benefit Cost) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansScheduleOfAssumptionsUsedToDetermineBenefitObligationsAndNetPeriodicBenefitCostDetails Retirement Plans (Schedule of Assumptions Used To Determine Benefit Obligations And Net Periodic Benefit Cost) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureRetirementPlansTables 108 false false R109.htm 101090 - Disclosure - Stockholders' Equity (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquityNarrativeDetails Stockholders' Equity (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquityTables 109 false false R110.htm 101100 - Disclosure - Stockholders' Equity (Summary of Purchases of Common Stock) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquitySummaryOfPurchasesOfCommonStockDetails Stockholders' Equity (Summary of Purchases of Common Stock) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquityTables 110 false false R111.htm 101110 - Disclosure - Stockholders' Equity (Summary Of Dividends Paid On Common Stock) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquitySummaryOfDividendsPaidOnCommonStockDetails Stockholders' Equity (Summary Of Dividends Paid On Common Stock) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureStockholdersEquityTables 111 false false R112.htm 101120 - Disclosure - Discontinued Operations (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperationsNarrativeDetails Discontinued Operations (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperationsTables 112 false false R113.htm 101130 - Disclosure - Discontinued Operations (Amounts Reported as Discontinued Operations in the Consolidated Statements of Comprehensive Earnings) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperationsAmountsReportedAsDiscontinuedOperationsInConsolidatedStatementsOfComprehensiveEarningsDetails Discontinued Operations (Amounts Reported as Discontinued Operations in the Consolidated Statements of Comprehensive Earnings) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureDiscontinuedOperationsTables 113 false false R114.htm 101150 - Disclosure - Commitments And Contingencies (Schedule Of Commitments And Contingencies) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfCommitmentsAndContingenciesDetails Commitments And Contingencies (Schedule Of Commitments And Contingencies) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables 114 false false R115.htm 101160 - Disclosure - Fair Value Measurements (Schedule Of Carrying Value And Fair Value Measurement Information For Financial Assets And Liabilities) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfCarryingValueAndFairValueMeasurementInformationForFinancialAssetsAndLiabilitiesDetails Fair Value Measurements (Schedule Of Carrying Value And Fair Value Measurement Information For Financial Assets And Liabilities) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsTables 115 false false R116.htm 101170 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Costs Incurred) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedCostsIncurredDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Costs Incurred) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 116 false false R117.htm 101180 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Results Of Operations) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedResultsOfOperationsDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Results Of Operations) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 117 false false R118.htm 101190 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Proved Developed and Undeveloped Reserves) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedProvedDevelopedAndUndevelopedReservesDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Proved Developed and Undeveloped Reserves) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 118 false false R119.htm 101200 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Narrative) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedNarrativeDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Narrative) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 119 false false R120.htm 101210 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Proved Undeveloped Reserves) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedProvedUndevelopedReservesDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Proved Undeveloped Reserves) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 120 false false R121.htm 101220 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Standardized Measure Of Discounted Future Net Cash Flows Related To Proved Reserves) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedStandardizedMeasureOfDiscountedFutureNetCashFlowsRelatedToProvedReservesDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Standardized Measure Of Discounted Future Net Cash Flows Related To Proved Reserves) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 121 false false R122.htm 101230 - Disclosure - Supplemental Information on Oil and Gas Operations (Unaudited) (Schedule Of Principal Changes In The Standardized Measure Of Discounted Future Net Cash Flows Attributable To Proved Reserves) (Details) Sheet http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedScheduleOfPrincipalChangesInTheStandardizedMeasureOfDiscountedFutureNetCashFlowsAttributableToProvedReservesDetails Supplemental Information on Oil and Gas Operations (Unaudited) (Schedule Of Principal Changes In The Standardized Measure Of Discounted Future Net Cash Flows Attributable To Proved Reserves) (Details) Details http://www.dvn.com/20211231/taxonomy/role/DisclosureSupplementalInformationOnOilAndGasOperationsUnauditedTables 122 false false All Reports Book All Reports dvn-10k_20211231.htm dvn-20211231.xsd dvn-20211231_cal.xml dvn-20211231_def.xml dvn-20211231_lab.xml dvn-20211231_pre.xml dvn-ex1015_478.htm dvn-ex1016_476.htm dvn-ex1026_477.htm dvn-ex1037_475.htm dvn-ex1038_474.htm dvn-ex1040_473.htm dvn-ex1041_472.htm dvn-ex1042_471.htm dvn-ex1043_470.htm dvn-ex107_479.htm dvn-ex109_480.htm dvn-ex21_9.htm dvn-ex231_10.htm dvn-ex232_11.htm dvn-ex311_13.htm dvn-ex312_6.htm dvn-ex321_12.htm dvn-ex322_8.htm dvn-ex424_481.htm dvn-ex99_7.htm gdlpmtmnzppt000001.jpg gdlpmtmnzppt000002.jpg gdlpmtmnzppt000003.jpg gdlpmtmnzppt000004.jpg gdlpmtmnzppt000005.jpg gdlpmtmnzppt000006.jpg gdlpmtmnzppt000007.jpg gdlpmtmnzppt000008.jpg http://fasb.org/srt/2021-01-31 http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true