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Supplemental Information To Statements Of Cash Flows (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Supplemental Cash Flow [Line Items]
Non-cash investing activities contributions of other propoerty and equipment	$ 150	$ 150

X

- Definition

Non-Cash Investing Activities Contributions Of Other Propoerty And Equipment

+ References

No definition available.

+ Details

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Namespace Prefix:	dvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Supplemental Cash Flow [Line Items]

+ References

No definition available.

+ Details

Name:	dvn_SupplementalCashFlowLineItems
Namespace Prefix:	dvn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration