Retirement And Other Postretirement Benefits (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ 3,397	$ 3,837
Amortization of loss	1,661	(13,925)
Total	(2,758)	(10,870)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(7,816)	(782)
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	951	1,158
Amortization of loss	1,565	(319)
Total	1,076	839
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(1,440)
Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(1,040)	(12,910)
Total	(7,687)	(12,910)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(6,647)	0
Pension Plans Defined Benefit [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(199)	(504)
Total	(1,639)	(504)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(1,440)
Other Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	3,510	4,014
Amortization of loss	2,898	(596)
Total	6,408	3,418
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	0	0
Other Postretirement [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	951	1,158
Amortization of loss	1,764	186
Total	2,715	1,344
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	0
Non Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(113)	(177)
Amortization of loss	(197)	(419)
Total	(1,479)	(1,378)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(1,169)	(782)
Non Qualified Pension Plans [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	0	(1)
Total	0	$ (1)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	$ 0