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Debt And Related Expenses (Narrative) (Details) (USD $)
0 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended
Nov. 13, 2014
May 31, 2012
Jul. 31, 2011
Jan. 31, 2009
Mar. 31, 2002
Jun. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Nov. 30, 2014
Feb. 28, 2014
Mar. 07, 2014
Mar. 19, 2014
Nov. 12, 2014
Feb. 05, 2015
Debt Instrument [Line Items]                            
Outstanding commercial paper             $ 932,000,000us-gaap_CommercialPaper $ 1,317,000,000us-gaap_CommercialPaper            
Repayment of commercial paper           700,000,000us-gaap_RepaymentsOfCommercialPaper                
Early retirement of senior notes 1,900,000,000us-gaap_EarlyRepaymentOfSeniorDebt                          
Financing cost of early retirement of debt.             48,000,000dvn_EarlyRetirementOfDebt              
Proceeds from Unsecured Notes Payable   2,465,000,000us-gaap_ProceedsFromUnsecuredNotesPayable 2,221,000,000us-gaap_ProceedsFromUnsecuredNotesPayable 1,187,000,000us-gaap_ProceedsFromUnsecuredNotesPayable 986,000,000us-gaap_ProceedsFromUnsecuredNotesPayable                  
Senior Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity             3,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
             
Outstanding Credit Facility borrowings             0us-gaap_LineOfCredit
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
             
Covenant description             This covenant requires Devon's ratio of total funded debt to total capitalization, as defined in the credit agreement, to be no greater than 65 percent. The credit agreement contains definitions of total funded debt and total capitalization that include adjustments to the respective amounts reported in the accompanying consolidated financial statements. Also, total capitalization is adjusted to add back noncash financial write-downs such as full cost ceiling impairments or goodwill impairments.              
Debt-to-capitalization ratio             20.9us-gaap_RatioOfIndebtednessToNetCapital1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
             
Credit facility, facility fee             3,800,000us-gaap_LineOfCreditFacilityCommitmentFeeAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
             
Credit facility, frequency of facility fee payment             annual              
Senior Credit Facility Two [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity             30,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dvn_SeniorCreditFacilityTwoMember
             
Line of credit facility expiration date             Oct. 24, 2017              
Senior Credit Facility Three [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity             164,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dvn_SeniorCreditFacilityThreeMember
             
Line of credit facility expiration date             Oct. 24, 2018              
Senior Credit Facility Four [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity             2,800,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dvn_SeniorCreditFacilityFourMember
             
Line of credit facility expiration date             Oct. 24, 2019              
Commercial Paper [Member]                            
Debt Instrument [Line Items]                            
Average borrowing rate on commercial paper borrowings             0.44%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= us-gaap_CommercialPaperMember
             
Credit Facility, borrowing capacity             3,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_CommercialPaperMember
             
2.40% due July 15, 2016 [Member]                            
Debt Instrument [Line Items]                            
Early retirement of senior notes             500,000,000us-gaap_EarlyRepaymentOfSeniorDebt
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointFourZeroPercentDueJulyFifteenthTwoThousandAndSixteenMember
             
Debt instrument, face amount     500,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointFourZeroPercentDueJulyFifteenthTwoThousandAndSixteenMember
[1]                      
Debt, maturity date             Jul. 15, 2016 Jul. 15, 2016            
Debt interest rate, stated percentage             2.40%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointFourZeroPercentDueJulyFifteenthTwoThousandAndSixteenMember
2.40%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointFourZeroPercentDueJulyFifteenthTwoThousandAndSixteenMember
           
Long term debt, gross               500,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointFourZeroPercentDueJulyFifteenthTwoThousandAndSixteenMember
           
1.20% Due December 15, 2016 [Member]                            
Debt Instrument [Line Items]                            
Early retirement of senior notes             650,000,000us-gaap_EarlyRepaymentOfSeniorDebt
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointTwoPercentDueDecemberFifteenthTwoThousandSixteenMember
             
Debt, maturity date             Dec. 15, 2016 Dec. 15, 2016            
Debt interest rate, stated percentage             1.20%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointTwoPercentDueDecemberFifteenthTwoThousandSixteenMember
1.20%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointTwoPercentDueDecemberFifteenthTwoThousandSixteenMember
           
1.875% due May 15, 2017 [Member]                            
Debt Instrument [Line Items]                            
Early retirement of senior notes             750,000,000us-gaap_EarlyRepaymentOfSeniorDebt
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointEightSevenFivePercentDueMayFifteenthTwoThousandSeventeenMember
             
Debt, maturity date             May 15, 2017 May 15, 2017            
Debt interest rate, stated percentage             1.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointEightSevenFivePercentDueMayFifteenthTwoThousandSeventeenMember
1.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointEightSevenFivePercentDueMayFifteenthTwoThousandSeventeenMember
           
Long term debt, gross               750,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointEightSevenFivePercentDueMayFifteenthTwoThousandSeventeenMember
           
Floating Rate due December 15, 2015 [Member]                            
Debt Instrument [Line Items]                            
Debt, maturity date             Dec. 15, 2015 Dec. 15, 2015            
Floating Rate Due December 15, 2016 [Member]                            
Debt Instrument [Line Items]                            
Debt, maturity date             Dec. 15, 2016 Dec. 15, 2016            
Long term debt, gross             350,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FloatingRateDueDecemberFifteenthTwoThousandSixteenMember
             
Senior Notes [Member]                            
Debt Instrument [Line Items]                            
Unamortized discount 2,000,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SeniorNotesMember
                         
Unamortized debt issue cost 6,000,000us-gaap_UnamortizedDebtIssuanceExpense
/ us-gaap_DebtInstrumentAxis
= us-gaap_SeniorNotesMember
                         
Make Whole Premium [Member]                            
Debt Instrument [Line Items]                            
Financing cost of early retirement of debt.                 40,000,000dvn_EarlyRetirementOfDebt
/ us-gaap_DebtInstrumentAxis
= dvn_MakeWholePremiumMember
         
General Partner [Member] | Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity             250,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GeneralPartnerMember
             
Outstanding Credit Facility borrowings             0us-gaap_LineOfCredit
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GeneralPartnerMember
             
Line of credit facility expiration date             Mar. 07, 2019              
Covenant description             The financial covenants are tested on a quarterly basis, based on the rolling four-quarter period that ends on the last day of each fiscal quarter, and include (i) maintaining a maximum consolidated leverage ratio (as defined in the credit facility, but generally computed as the ratio of consolidated funded indebtedness to consolidated earnings before interest, taxes, depreciation, amortization and certain other noncash charges) of 4.00 to 1.00, provided that the maximum consolidated leverage ratio is 4.50 to 1.00 during an acquisition period (as defined in the credit facility) and (ii) maintaining a minimum consolidated interest coverage ratio (as defined in the credit facility, but generally computed as the ratio of consolidated earnings before interest, taxes, depreciation, amortization and certain other noncash charges to consolidated interest charges) of 2.50 to 1.00 at all times unless an investment grade event (as defined in the credit facility) occurs. EnLink and the General Partner are in compliance with all such covenants as of December 31, 2014.              
Minimum [Member] | Commercial Paper [Member]                            
Debt Instrument [Line Items]                            
Commercial paper, maturity duration             1 day              
Minimum [Member] | General Partner [Member] | Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Ratio of consolidated earnings to consolidated interest charges             2.50dvn_RatioOfConsolidatedEarningsToConsolidatedInterestCharges
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GeneralPartnerMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
             
Maximum [Member] | Senior Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Debt-to-capitalization ratio             65us-gaap_RatioOfIndebtednessToNetCapital1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
             
Maximum [Member] | Commercial Paper [Member]                            
Debt Instrument [Line Items]                            
Commercial paper, maturity duration             365 days              
Maximum [Member] | General Partner [Member] | Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Consolidated leverage ratio             4.00dvn_ConsolidatedLeverageRatio
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GeneralPartnerMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
             
Maximum [Member] | General Partner [Member] | Credit Facility [Member] | Acquisition Period [Member]                            
Debt Instrument [Line Items]                            
Consolidated leverage ratio             4.50dvn_ConsolidatedLeverageRatio
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GeneralPartnerMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= dvn_AcquisitionPeriodMember
             
GeoSouthern Intermediate Holdings, LLC [Member]                            
Debt Instrument [Line Items]                            
Aggregate purchase price of acquisitions                   6,000,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
       
Proceeds from Unsecured Notes Payable             2,248,000,000us-gaap_ProceedsFromUnsecuredNotesPayable
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
             
GeoSouthern Intermediate Holdings, LLC [Member] | Fixed and Floating Senior Notes [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount               2,250,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_FixedAndFloatingSeniorNotesMember
           
GeoSouthern Intermediate Holdings, LLC [Member] | Term Loan [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount               2,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_TermLoanMember
           
GeoSouthern Intermediate Holdings, LLC [Member] | 1.20% Due December 15, 2016 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount             650,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointTwoPercentDueDecemberFifteenthTwoThousandSixteenMember
[2]              
Debt, maturity date             Dec. 15, 2016              
Debt interest rate, stated percentage             1.20%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_OnePointTwoPercentDueDecemberFifteenthTwoThousandSixteenMember
             
GeoSouthern Intermediate Holdings, LLC [Member] | Floating Rate due December 15, 2015 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount             500,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_FloatingRateDueDecemberFifteenthTwoThousandFifteenMember
             
Debt, maturity date             Dec. 15, 2015              
Basis spread on LIBOR rate             0.45%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_FloatingRateDueDecemberFifteenthTwoThousandFifteenMember
             
GeoSouthern Intermediate Holdings, LLC [Member] | Floating Rate Due December 15, 2016 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount             350,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_FloatingRateDueDecemberFifteenthTwoThousandSixteenMember
             
Debt, maturity date             Dec. 15, 2016              
Basis spread on LIBOR rate             0.54%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_BusinessAcquisitionAxis
= dvn_GeosouthernIntermediateHoldingsLlcMember
/ us-gaap_DebtInstrumentAxis
= dvn_FloatingRateDueDecemberFifteenthTwoThousandSixteenMember
             
E2 Energy Services LLC [Member]                            
Debt Instrument [Line Items]                            
Promissory note for vehicle fleet             400,000us-gaap_NotesPayable
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dvn_E2EnergyServicesLlcMember
             
EnLink [Member]                            
Debt Instrument [Line Items]                            
Fair value of debt assumed                     1,454,000,000us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
     
Long term debt, gross             2,023,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | Unsecured Revolving Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity             1,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Credit Facility, remaining borrowing capacity             749,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Outstanding Credit Facility borrowings             237,000,000us-gaap_LineOfCredit
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Covenant description             Among other things, these covenants include maintaining a ratio of EnLink's consolidated indebtedness to consolidated EBITDA (as defined in the credit facility, which definition includes projected EBITDA from certain capital expansion projects) of no more than 5.0 to 1.0. If EnLink consummates one or more acquisitions in which the aggregate purchase price is $50 million or more, the maximum allowed ratio of EnLink's consolidated indebtedness to consolidated EBITDA may increase to 5.5 to 1.0 for the quarter of the acquisition and the three following quarters.              
Aggregate purchase price of acquisitions             50,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | Unsecured Letter Of Credit Subfacility [Member]                            
Debt Instrument [Line Items]                            
Outstanding Credit Facility borrowings             14,000,000us-gaap_LineOfCredit
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredLetterOfCreditSubfacilityMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | Unsecured Senior Notes [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount                       1,200,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredSeniorNotesMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
   
EnLink [Member] | 2.70% due April 1, 2019 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount                       400,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointSevenPercentDueAprilFirstTwoThousandAndNinteenMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
   
Debt, maturity date             Apr. 01, 2019              
Debt interest rate, stated percentage             2.70%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointSevenPercentDueAprilFirstTwoThousandAndNinteenMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Long term debt, gross             400,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_TwoPointSevenPercentDueAprilFirstTwoThousandAndNinteenMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | 4.40% due April 1, 2024 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount                       450,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FourPointFourZeroPercentDueAprilOneTwoThousandTwentyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
100,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FourPointFourZeroPercentDueAprilOneTwoThousandTwentyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
 
Debt, maturity date             Apr. 01, 2024              
Debt interest rate, stated percentage             4.40%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_FourPointFourZeroPercentDueAprilOneTwoThousandTwentyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Long term debt, gross             550,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FourPointFourZeroPercentDueAprilOneTwoThousandTwentyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | 5.60% due April 1, 2044 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount                       350,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FivePointSixZeroPercentDueAprilOneTwoThousandAndFortyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
   
Debt, maturity date             Apr. 01, 2044              
Debt interest rate, stated percentage             5.60%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_FivePointSixZeroPercentDueAprilOneTwoThousandAndFortyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Long term debt, gross             350,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FivePointSixZeroPercentDueAprilOneTwoThousandAndFortyFourMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | 5.05% due April 1, 2045 [Member]                            
Debt Instrument [Line Items]                            
Debt instrument, face amount                         300,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FivePointZeroFivePercentDueAprilOneTwoThousandAndFortyFiveMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
 
Debt, maturity date             Apr. 01, 2045              
Debt interest rate, stated percentage             5.05%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= dvn_FivePointZeroFivePercentDueAprilOneTwoThousandAndFortyFiveMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
Long term debt, gross             300,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= dvn_FivePointZeroFivePercentDueAprilOneTwoThousandAndFortyFiveMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | Maximum [Member] | Unsecured Revolving Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Ratio of consolidated indebtness             5.0dvn_RatioOfConsolidatedIndebtness
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
             
EnLink [Member] | Maximum [Member] | Unsecured Revolving Credit Facility [Member] | Acquisition Period [Member]                            
Debt Instrument [Line Items]                            
Ratio of consolidated indebtness             5.5dvn_RatioOfConsolidatedIndebtness
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
/ us-gaap_StatementScenarioAxis
= dvn_AcquisitionPeriodMember
             
Subsequent Event [Member] | EnLink [Member] | Unsecured Revolving Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Credit Facility, borrowing capacity                           $ 1,500,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dvn_UnsecuredRevolvingCreditFacilityMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= dvn_EnlinkMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Line of credit facility expiration date             Mar. 07, 2020              
[1] The 1.875% $750 million note due May 15, 2017 and 2.4% $500 million note due July 15, 2016 were redeemed on November 13, 2014.
[2] The 1.20% $650 million note due December 15, 2016 was redeemed on November 13, 2014.