Retirement And Other Postretirement Benefits (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ 3,398	$ 3,837	$ 6,795	$ 7,674
Amortization of loss	1,633	(10,979)	3,295	(24,904)
Total	4,357	(7,687)	1,600	(18,557)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(674)	(545)	(8,490)	(1,327)
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	951	1,158	1,902	2,316
Amortization of loss	1,564	(308)	3,129	(627)
Total	2,426	672	3,502	1,511
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(89)	(178)	(1,529)
Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0	0	0
Amortization of loss	(1,104)	(10,035)	(2,144)	(22,945)
Total	(1,414)	(10,213)	(9,101)	(23,123)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(310)	(178)	(6,957)	(178)
Pension Plans Defined Benefit [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0	0	0
Amortization of loss	(200)	(493)	(398)	(997)
Total	(289)	(671)	(1,927)	(1,175)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(89)	(178)	(1,529)
Other Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	3,510	4,014	7,020	8,028
Amortization of loss	2,897	(596)	5,796	(1,192)
Total	6,407	3,418	12,816	6,836
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	0	0	0	0
Other Postretirement [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	951	1,158	1,902	2,316
Amortization of loss	1,764	186	3,528	372
Total	2,715	1,344	5,430	2,688
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	0	0	0
Non Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(112)	(177)	(225)	(354)
Amortization of loss	(160)	(348)	(357)	(767)
Total	(636)	(892)	(2,115)	(2,270)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(364)	(367)	(1,533)	(1,149)
Non Qualified Pension Plans [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0	0	0
Amortization of loss	0	(1)	(1)	(2)
Total	0	(1)	(1)	$ (2)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	$ 0	$ (6)	$ 0