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v3.22.2.2

Income Taxes (Narrative) (Details) $ in Millions | Sep. 30, 2021 USD ($)
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WPX Merger [Member] |
Income Tax [Line Items] |
Deferred income taxes | $ 250

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- Definition Business combination recognized identifiable assets acquired and liabilities assumed deferred income taxes. + References No definition available. + Details
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Namespace Prefix: | dvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Income Tax [Line Items] + References No definition available. + Details
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Namespace Prefix: | dvn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |