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Other, Net (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Expenses [Abstract]
Estimated future obligation under a performance guarantee	$ (28)	$ 0	$ (144)

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- Definition

Estimated future obligation under performance guarantee.

+ References

No definition available.

+ Details

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

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- References

No definition available.

+ Details

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