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)