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Other, Net (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Expenses [Abstract]
Estimated future obligation under a performance guarantee	$ 0	$ (44)	$ 0	$ (140)
Ukraine charitable pledge	$ 0	$ 0	$ 0	$ 20

X

- Definition

Charitable contribution.

+ References

No definition available.

+ Details

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

X

- Definition

Estimated future obligation under performance guarantee.

+ References

No definition available.

+ Details

Name:	dvn_EstimatedFutureObligationUnderPerformanceGuarantee
Namespace Prefix:	dvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_OtherExpensesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration