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Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Schedule of Contributions to Defined Contribution Plans) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Contribution Plan, Cost $ 77,400 $ 72,300 $ 65,100
Entergy Arkansas [Member]      
Defined Contribution Plan, Cost 7,550 6,822 5,866
Entergy Louisiana [Member]      
Defined Contribution Plan, Cost 9,529 8,784 7,757
Entergy Mississippi [Member]      
Defined Contribution Plan, Cost 4,524 4,048 3,534
Entergy New Orleans [Member]      
Defined Contribution Plan, Cost 1,555 1,584 1,383
Entergy Texas [Member]      
Defined Contribution Plan, Cost $ 4,385 $ 3,907 $ 3,380