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Summary Of Significant Accounting Policies (Narrative) (Details) (EnLink [Member]) | 9 Months Ended
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Sep. 30, 2014
Minimum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Finite lived intangible asset useful life | 10 years
Maximum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Finite lived intangible asset useful life | 20 years

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- Details
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Namespace Prefix: | dvn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration