v3.26.1
Risk Management and Fair Values (Narrative) (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
GWh
MMBTU
Dec. 31, 2025
USD ($)
Cash $ 118,189 $ 45,895
Entergy Arkansas [Member]    
Cash 3,892 7,048
Entergy Louisiana [Member]    
Cash 379 237
Entergy Mississippi [Member]    
Cash 1,136 27
Entergy New Orleans [Member]    
Cash 354 26
Entergy Texas [Member]    
Cash $ 1,426 200
Natural Gas Swaps    
Derivative, Remaining Maturity 9 months  
Total volume outstanding | MMBTU 9,124,250  
Natural Gas Swaps | Entergy Louisiana [Member]    
Total volume outstanding | MMBTU 0  
Natural Gas Swaps | Entergy Mississippi [Member]    
Derivative, Remaining Maturity 9 months  
Total volume outstanding | MMBTU 9,124,250  
Financial transmission rights [Member]    
Letters of Credit Outstanding, Amount $ 6,000 2,000
Total volume outstanding | GWh 131,545  
Financial transmission rights [Member] | Corporate Segment and Other Operating Segment [Member]    
Letters of Credit Outstanding, Amount $ 0 0
Cash 0 0
Financial transmission rights [Member] | Entergy Arkansas [Member]    
Letters of Credit Outstanding, Amount 1,400 100
Cash $ 0 0
Total volume outstanding | GWh 34,807  
Financial transmission rights [Member] | Entergy Louisiana [Member]    
Letters of Credit Outstanding, Amount $ 1,300 800
Cash $ 0 0
Total volume outstanding | GWh 54,548  
Financial transmission rights [Member] | Entergy Mississippi [Member]    
Letters of Credit Outstanding, Amount $ 2,500 800
Cash $ 0 0
Total volume outstanding | GWh 16,033  
Financial transmission rights [Member] | Entergy New Orleans [Member]    
Cash $ 0 0
Total volume outstanding | GWh 5,533  
Financial transmission rights [Member] | Entergy Texas [Member]    
Letters of Credit Outstanding, Amount $ 600 100
Cash $ 0 $ 0
Total volume outstanding | GWh 20,171  
Interest Rate Swap    
Derivative, Notional Amount $ 1,100,000  
Interest Rate Swap | Entergy Texas [Member]    
Derivative, Notional Amount $ 1,100,000