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Leases (Narrative) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
USD ($)
yr
Dec. 31, 2024
USD ($)
Finance Lease, Interest Expense $ 5,395 $ 4,664
Short-Term Lease, Cost 4,200 3,100
Operating Lease, Right-of-Use Asset 278,000 277,000
Finance Lease, Right-of-Use Asset, after Accumulated Amortization $ 111,000 $ 110,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Public Utilities, Property, Plant and Equipment, Net Public Utilities, Property, Plant and Equipment, Net
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Public Utilities, Property, Plant and Equipment, Net Public Utilities, Property, Plant and Equipment, Net
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses [Member]    
Disposal group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas - Operating Leases   $ 1,000
Disposal group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas - Finance Leases   4,000
Minimum [Member]    
Lessee, Remaining Lease Term | yr 1  
Maximum [Member]    
Lessee, Remaining Lease Term | yr 55  
Entergy Arkansas [Member]    
Finance Lease, Interest Expense $ 1,714 990
Short-Term Lease, Cost 1,600 1,100
Operating Lease, Right-of-Use Asset 75,148 64,960
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 37,616 36,105
Entergy Louisiana [Member]    
Finance Lease, Interest Expense 1,207 1,068
Short-Term Lease, Cost 1,400 1,100
Operating Lease, Right-of-Use Asset 66,726 65,909
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 28,637 26,159
Entergy Louisiana [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy Louisiana natural gas distribution business [Member]    
Disposal group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas - Operating Leases   400
Disposal group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas - Finance Leases   1,400
Entergy Mississippi [Member]    
Finance Lease, Interest Expense 1,153 1,116
Short-Term Lease, Cost 600 500
Operating Lease, Right-of-Use Asset 32,502 32,399
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 23,456 22,641
Entergy New Orleans [Member]    
Finance Lease, Interest Expense 151 264
Short-Term Lease, Cost 200 100
Operating Lease, Right-of-Use Asset 7,940 7,971
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 3,613 6,451
Entergy Texas [Member]    
Finance Lease, Interest Expense 484 399
Short-Term Lease, Cost 400 300
Operating Lease, Right-of-Use Asset 26,070 27,524
Finance Lease, Right-of-Use Asset, after Accumulated Amortization $ 11,550 $ 10,822