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Retirement And Other Postretirement Benefits (Schedule of reclassifications out of accumulated other comprehensive income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | $ 3,473 | $ 3,398 | $ 6,946 | $ 6,795
Amortization of Gains (Losses), Before Tax | 1,641 | 1,633 | 3,037 | 3,295
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (311,860) | 4,357 | (306,991) | 1,600
Recognized Net Gain (Loss) Due To Settlements, Before Tax | (316,974) | (674) | (316,974) | (8,490)
Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | 1,136 | 951 | 2,272 | 1,902
Amortization of Gains (Losses), Before Tax | 1,632 | 1,564 | 3,266 | 3,129
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | 2,768 | 2,426 | 5,538 | 3,502
Recognized Net Gain (Loss) Due To Settlements, Before Tax |  | (89) |  | (1,529)
Other Postretirement Benefits Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | 3,513 | 3,510 | 7,026 | 7,020
Amortization of Gains (Losses), Before Tax | 2,615 | 2,897 | 5,230 | 5,796
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | 6,128 | 6,407 | 12,256 | 12,816
Recognized Net Gain (Loss) Due To Settlements, Before Tax | 0 | 0 | 0 | 0
Other Postretirement Benefits Plan [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | 1,136 | 951 | 2,272 | 1,902
Amortization of Gains (Losses), Before Tax | 1,738 | 1,764 | 3,476 | 3,528
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | 2,874 | 2,715 | 5,748 | 5,430
Recognized Net Gain (Loss) Due To Settlements, Before Tax |  | 0 |  | 0
Non Qualified Pension Plans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | (40) | (112) | (80) | (225)
Amortization of Gains (Losses), Before Tax | (80) | (160) | (160) | (357)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (120) | (636) | (240) | (2,115)
Recognized Net Gain (Loss) Due To Settlements, Before Tax | 0 | (364) | 0 | (1,533)
Non Qualified Pension Plans [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | 0 | 0 | 0 | 0
Amortization of Gains (Losses), Before Tax | (2) | 0 | (2) | (1)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (2) | 0 | (2) | (1)
Recognized Net Gain (Loss) Due To Settlements, Before Tax |  | 0 |  | 0
Qualified Pension Plans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | 0 | 0 | 0 | 0
Amortization of Gains (Losses), Before Tax | (894) | (1,104) | (2,033) | (2,144)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (317,868) | (1,414) | (319,007) | (9,101)
Recognized Net Gain (Loss) Due To Settlements, Before Tax | (316,974) | (310) | (316,974) | (6,957)
Qualified Pension Plans [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Amortization of Prior Service Cost Credit, Before Tax | 0 | 0 | 0 | 0
Amortization of Gains (Losses), Before Tax | (104) | (200) | (208) | (398)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | $ (104) | (289) | $ (208) | (1,927)
Recognized Net Gain (Loss) Due To Settlements, Before Tax |  | $ (89) |  | $ (1,529)

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