v3.26.1
Cover Page - shares
3 Months Ended
Mar. 31, 2026
Apr. 24, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-13726  
Entity Registrant Name EXPAND ENERGY CORPORATION  
Entity Incorporation, State or Country Code OK  
Entity Tax Identification Number 73-1395733  
Entity Address, Address Line One 10000 Energy Drive,  
Entity Address, City or Town Spring,  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 77389  
City Area Code (346)  
Local Phone Number 535-0990  
Title of 12(b) Security Common Stock, $0.01 par value per share  
Trading Symbol EXE  
Security Exchange Name NASDAQ  
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  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   239,228,849
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0000895126  
Current Fiscal Year End Date --12-31