Document And Entity Information - USD ($) shares in Millions, $ in Billions	12 Months Ended
	Dec. 31, 2016	Feb. 08, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Trading Symbol	DVN
Entity Registrant Name	DEVON ENERGY CORP/DE
Entity Central Index Key	0001090012
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2016
Entity Filer Category	Large Accelerated Filer
Document Fiscal Period Focus	FY
Entity Public Float			$ 18.9
Entity Common Stock, Shares Outstanding		524.6