Equity (Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	$ (324,038)	$ (336,578)	$ (478,739)	$ (500,507)	$ (324,038)	$ (478,739)	$ (332,528)	$ (449,207)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	4,087		634		(11,803)	(43,186)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	8,453		21,134		20,293	13,654
Other comprehensive income (loss)	12,540	(4,050)	21,768	(51,300)	8,490	(29,532)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	1,223	(5,248)	11,855	11,963	1,223	11,855	7,154	56,650
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	4,101		648		(11,774)	(44,653)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	2,370		(756)		5,843	(142)
Other comprehensive income (loss)	6,471		(108)		(5,931)	(44,795)
Accumulated Other Comprehensive Income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	12,540	(4,050)	21,768	(51,300)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	(324,274)	(330,319)	(489,511)	(511,609)	(324,274)	(489,511)	(338,647)	(534,576)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0		0		0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	6,045		22,098		14,373	45,065
Other comprehensive income (loss)	6,045		22,098		14,373	45,065
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	(987)	(1,011)	(1,083)	(861)	(987)	(1,083)	(1,035)	28,719
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(14)		(14)		(29)	1,467
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	38		(208)		77	(31,269)
Other comprehensive income (loss)	24		(222)		48	(29,802)
Entergy Louisiana [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	7,174				7,174		8,278
Other comprehensive income (loss)	(491)	(613)	588	(407)	(1,104)	181
Entergy Louisiana [Member] | Accumulated Other Comprehensive Income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	(491)	(613)	588	(407)
Entergy Louisiana [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	7,174	$ 7,665	4,508	$ 3,920	7,174	4,508	$ 8,278	$ 4,327
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(491)		588		(1,104)	181
Other comprehensive income (loss)	$ (491)		$ 588		$ (1,104)	$ 181