Equity (Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (195,453)			$ (313,370)	$ (324,038)		$ (195,453)	$ (313,370)	$ (191,754)	$ (332,528)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				11,905				32,197
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				(1,237)				(13,039)
Other comprehensive income (loss)	(2,434)	$ (3,292)	$ 2,027	10,668	12,540	$ (4,050)	(3,699)	19,158
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss				0	1,223			0		7,154
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				0				5,843
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				(1,223)				(12,997)
Other comprehensive income (loss)				(1,223)				(7,154)
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	(2,434)	(3,292)	2,027	10,668	12,540	(4,050)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(195,453)	(193,019)		(312,407)	(324,274)		(195,453)	(312,407)	(191,754)	(338,647)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(2,434)			11,867			(3,699)	26,240
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				0				0
Other comprehensive income (loss)	(2,434)			11,867			(3,699)	26,240
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss				(963)	(987)			(963)		(1,035)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				38				114
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				(14)				(42)
Other comprehensive income (loss)				24				72
Entergy Louisiana [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	50,982						50,982		55,370
Other comprehensive income (loss)	(1,829)	(1,773)	(786)	295	(491)	(613)	(4,388)	(809)
Entergy Louisiana [Member] | Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	(1,829)	(1,773)	$ (786)	295	(491)	$ (613)
Entergy Louisiana [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	50,982	$ 52,811		7,469	$ 7,174		50,982	7,469	$ 55,370	$ 8,278
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,829)			295			(4,388)	(809)
Other comprehensive income (loss)	$ (1,829)			$ 295			$ (4,388)	$ (809)