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Document And Entity Information - USD ($)
shares in Millions, $ in Billions
 12 Months Ended
Dec. 31, 2024
Feb. 05, 2025
Jun. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Document Period End Date Dec. 31, 2024    
Document Annual Report true    
Document Transition Report false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Amendment Flag false    
Entity Registrant Name DEVON ENERGY CORP/DE    
Entity Central Index Key 0001090012    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity File Number 001-32318    
Entity Tax Identification Number 73-1567067    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 333 West Sheridan Avenue    
Entity Address, City or Town Oklahoma City    
Entity Address, State or Province OK    
Entity Address, Postal Zip Code 73102-5015    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction Flag false    
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    
Documents Incorporated by Reference

Portions of Registrant’s definitive Proxy Statement relating to Registrant’s 2025 annual meeting of stockholders have been incorporated by reference in Part III of this Annual Report on Form 10-K.

    
Auditor Name KPMG LLP    
Auditor Location Houston, Texas    
Auditor Firm ID 185    
Entity Public Float     $ 29.5
Entity Common Stock, Shares Outstanding   649  
Auditor Opinion [Text Block]

Opinions on the Consolidated Financial Statements and Internal Control Over Financial Reporting

We have audited the accompanying consolidated balance sheets of Devon Energy Corporation and subsidiaries (the Company) as of December 31, 2024 and 2023, the related consolidated statements of comprehensive earnings, equity, and cash flows for each of the years in the three-year period ended December 31, 2024, and the related notes (collectively, the consolidated financial statements). We also have audited the Company’s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2024, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024 based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

The Company acquired Grayson Mill during 2024, and management excluded from its assessment of the effectiveness of the Company’s internal control over financial reporting as of December 31, 2024, Grayson Mill’s internal control over financial reporting associated with total assets of $5.6 billion and total revenues of $687 million included in the consolidated financial statements of the Company as of and for the year ended December 31, 2024. Our audit of internal control over financial reporting of the Company also excluded an evaluation of the internal control over financial reporting of Grayson Mill.