v3.26.1
Debt And Related Expenses (Narrative) (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 25, 2026
USD ($)
Aug. 31, 2024
USD ($)
Jul. 31, 2026
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Sep. 27, 2024
USD ($)
Debt Instrument [Line Items]                
Outstanding Long Term Debt Amount           $ 750.0    
Repayments of long-term debt       $ 500.0 $ 0.0 500.0 $ 0.0  
Commercial Paper       0.0   $ 0.0    
Maturity date extension           In the first quarter of 2026, Devon amended the credit agreement governing the Senior Credit Facility to, among other things, extend the maturity date from March 24, 2030 to March 24, 2031, with the option to extend the maturity date by three additional one-year periods, subject to lender consent    
Debt Instrument Repaid Principal           $ 250.0    
Coterra                
Debt Instrument [Line Items]                
Debt Instrument Principal Amount $ 277.0              
Coterra Energy Operating Co. [Member]                
Debt Instrument [Line Items]                
Debt Instrument Principal Amount 27.0              
Commercial Paper [Member]                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity       $ 3,000.0   $ 3,000.0    
Term Loan Credit Agreement [Member]                
Debt Instrument [Line Items]                
Aggregate Principal Amount   $ 2,000.0            
Outstanding credit facility borrowings               $ 1,000.0
Debt-to-capitalization ratio       0.181   0.181    
Interest rate on the term loan       4.96%   4.96%    
Line of Credit [Member]                
Debt Instrument [Line Items]                
Credit facility, borrowing capacity       $ 3,000.0   $ 3,000.0    
Outstanding credit facility borrowings       $ 0.0   $ 0.0    
Debt-to-capitalization ratio       0.181   0.181    
Outstanding letters of credit       $ 1.0   $ 1.0    
Line of Credit [Member] | Maximum [Member]                
Debt Instrument [Line Items]                
Debt-to-capitalization ratio       0.65   0.65    
Tranche One [Member] | Term Loan Credit Agreement [Member]                
Debt Instrument [Line Items]                
Aggregate Principal Amount   500.0            
Tranche Two [Member] | Term Loan Credit Agreement [Member]                
Debt Instrument [Line Items]                
Aggregate Principal Amount   $ 1,500.0            
Devon [Member]                
Debt Instrument [Line Items]                
Debt Instrument Issued Principal $ 2,950.0              
Senior Notes [Member] | Devon [Member]                
Debt Instrument [Line Items]                
Repayments of Related Party Debt           $ 250.0    
Debt interest rate, stated percentage       3.77%   3.77%    
Subsequent Event [Member]                
Debt Instrument [Line Items]                
Debt Instrument Repaid Principal     $ 750.0