v3.26.1
Document and Entity Information - USD ($)
shares in Millions, $ in Billions
 12 Months Ended
Dec. 31, 2025
Mar. 31, 2026
Jun. 30, 2025
Document and Entity Information      
Document Type 10-K/A    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2025    
Entity File Number 001-32318    
Entity Registrant Name DEVON ENERGY CORP/DE    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 73-1567067    
Entity Address State Or Province OK    
Entity Address, Address Line One 333 West Sheridan Avenue    
Entity Address, City or Town Oklahoma City    
Entity Address, Postal Zip Code 73102-5015    
City Area Code 405    
Local Phone Number 235-3611    
Title of 12(b) Security Common stock, par value $0.10 per share    
Trading Symbol DVN    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 20.2
Entity Common Stock, Shares Outstanding   621  
Entity Central Index Key 0001090012    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name KPMG LLP    
Auditor Location Oklahoma City, Oklahoma    
Auditor Firm ID 185