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Document And Entity Information
In Millions
6 Months Ended
Jun. 30, 2011
Jul. 22, 2011
Document And Entity Information    
Document Type 10-Q  
Document Period End Date Jun. 30, 2011
Amendment Flag false  
Entity Registrant Name DEVON ENERGY CORP/DE  
Entity Central Index Key 0001090012  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2011  
Entity Filer Category Large Accelerated Filer  
Document Fiscal Period Focus Q2  
Entity Common Stock, Shares Outstanding   416.5