Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Schedule Of Net Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 12,503	$ 14,654	$ 24,734
Defined Benefit Plan, Interest Cost	39,408	42,272	27,306
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(42,277)	(36,732)	(43,420)
Defined Benefit Plan, Amortization of Gain (Loss)	(11,045)	(11,446)	4,333
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(24,291)	(13,810)	(12,597)
Defined Benefit Plan, Changes in	0	(4,434)	(858)
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	73,123	44,441	131,524
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	22,880	22,558	25,550
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	11,045	11,446	(4,333)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(39,198)	(14,871)	(111,165)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(63,489)	(28,681)	(123,762)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(22,880)	(22,558)	(25,550)
Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	93,468	101,182	138,085
Defined Benefit Plan, Interest Cost	249,757	298,281	235,805
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(338,619)	(388,030)	(402,504)
Defined Benefit Plan, Amortization of Gain (Loss)	58,590	81,919	188,683
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(328,277)	(160,387)	(230,389)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	391,473	253,739	390,458
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	101,445	213,636	(6,113)
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(58,590)	(81,919)	(188,683)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	(328,277)	(160,387)	(230,389)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(488,312)	(455,942)	(412,959)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(96,839)	(202,203)	(22,501)
Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	1,500	27,900	12,200
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	12,200	43,800	30,900
Entergy Arkansas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	2,569	2,965	4,457
Defined Benefit Plan, Interest Cost	7,331	8,002	5,050
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(17,535)	(15,113)	(17,930)
Defined Benefit Plan, Amortization of Gain (Loss)	0	171	873
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(5,538)	(1,879)	(5,665)
Defined Benefit Plan, Changes in		0	273
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	20,074	23,033	(12,894)
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	(2,097)	(2,096)	(1,885)
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	0	(171)	(873)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(22,171)	(25,300)	10,409
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(27,709)	(27,179)	4,744
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	2,097	2,096	1,885
Entergy Arkansas [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	16,398	18,461	25,210
Defined Benefit Plan, Interest Cost	52,870	56,026	45,378
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(72,620)	(70,574)	(75,820)
Defined Benefit Plan, Amortization of Gain (Loss)	22,983	19,400	43,597
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	(26,137)	(36,409)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	19,631	49,450	74,774
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	49,352	30,674	(28,365)
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(22,983)	(19,400)	(43,597)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	0	(26,137)	(36,409)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(72,335)	(76,211)	(51,641)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(52,704)	(26,761)	23,133
Entergy Arkansas [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		379
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	269	637	282
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	2,800	3,379	5,633
Defined Benefit Plan, Interest Cost	7,995	8,931	5,770
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	0	0	0
Defined Benefit Plan, Amortization of Gain (Loss)	(6,952)	(7,057)	(744)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(701)	1,449	6,029
Defined Benefit Plan, Changes in		(4,434)	323
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	7,273	458	65,501
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	4,544	3,804	4,630
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	6,952	7,057	744
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	4,223	5,969	(59,804)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	3,522	7,418	(53,775)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(4,544)	(3,804)	(4,630)
Entergy Louisiana [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	22,204	24,716	33,520
Defined Benefit Plan, Interest Cost	55,843	60,346	49,330
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(77,786)	(75,757)	(82,478)
Defined Benefit Plan, Amortization of Gain (Loss)	10,407	19,797	41,711
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	(40,437)	(58,550)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	10,668	69,539	100,633
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	55,010	71,016	15,604
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(10,407)	(19,797)	(41,711)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	0	(40,437)	(58,550)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(65,417)	(131,250)	(115,865)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(54,749)	(61,711)	(15,232)
Entergy Louisiana [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	55		1
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	256	99	102
Entergy Mississippi [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	736	878	1,354
Defined Benefit Plan, Interest Cost	1,945	2,170	1,401
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(5,486)	(4,716)	(5,575)
Defined Benefit Plan, Amortization of Gain (Loss)	61	85	222
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(3,699)	(2,538)	(4,370)
Defined Benefit Plan, Changes in		0	(1,300)
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	3,915	6,883	(6,629)
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	955	955	1,772
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(61)	(85)	(222)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(3,021)	(6,013)	6,879
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(6,720)	(8,551)	2,509
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(955)	(955)	(1,772)
Entergy Mississippi [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	5,135	5,775	8,043
Defined Benefit Plan, Interest Cost	14,084	15,402	12,979
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(20,451)	(19,423)	(20,168)
Defined Benefit Plan, Amortization of Gain (Loss)	4,562	5,719	12,594
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	(12,242)	(15,786)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	3,330	19,715	29,234
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	10,857	20,220	4,743
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(4,562)	(5,719)	(12,594)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	0	(12,242)	(15,786)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(15,419)	(38,181)	(33,123)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(12,089)	(18,466)	(3,889)
Entergy Mississippi [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		453	2
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	326	808	321
Entergy New Orleans [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	205	235	397
Defined Benefit Plan, Interest Cost	1,012	1,160	694
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(5,915)	(5,263)	(5,997)
Defined Benefit Plan, Amortization of Gain (Loss)	74	466	(898)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(5,540)	(4,318)	(6,720)
Defined Benefit Plan, Changes in		0	0
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	2,217	7,606	(17,334)
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	916	916	916
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(74)	(466)	898
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(1,375)	(7,156)	19,148
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(6,915)	(11,474)	12,428
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(916)	(916)	(916)
Entergy New Orleans [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	1,760	1,955	2,745
Defined Benefit Plan, Interest Cost	6,276	6,747	5,491
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(8,814)	(8,798)	(9,920)
Defined Benefit Plan, Amortization of Gain (Loss)	1,881	1,694	4,787
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	(2,080)	(6,676)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	1,103	3,678	9,779
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	8,990	3,183	(525)
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(1,881)	(1,694)	(4,787)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	0	(2,080)	(6,676)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(10,871)	(6,957)	(10,938)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(9,768)	(3,279)	(1,159)
Entergy New Orleans [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	122	132	114
Entergy Texas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	670	809	1,322
Defined Benefit Plan, Interest Cost	2,411	2,597	1,596
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(10,156)	(8,776)	(10,273)
Defined Benefit Plan, Amortization of Gain (Loss)	591	914	648
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(10,855)	(8,827)	(11,078)
Defined Benefit Plan, Changes in		0	0
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	4,683	8,790	(22,323)
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	4,371	4,371	4,371
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(591)	(914)	(648)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(903)	(5,333)	26,046
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(11,758)	(14,160)	14,968
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(4,371)	(4,371)	(4,371)
Entergy Texas [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	3,846	4,328	5,999
Defined Benefit Plan, Interest Cost	11,324	12,726	10,729
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(16,308)	(16,641)	(18,317)
Defined Benefit Plan, Amortization of Gain (Loss)	1,574	4,075	9,013
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	(11,230)	(22,411)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	436	15,718	29,835
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	6,190	16,759	(13,363)
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(1,574)	(4,075)	(9,013)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	0	(11,230)	(22,411)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(7,764)	(32,064)	(18,061)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(7,328)	(16,346)	11,774
Entergy Texas [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			1,000
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	248	253	1,320
System Energy [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	699	754	1,239
Defined Benefit Plan, Interest Cost	1,593	1,726	1,116
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(2,912)	(2,535)	(3,162)
Defined Benefit Plan, Amortization of Gain (Loss)	0	0	121
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	(913)	(348)	(1,005)
Defined Benefit Plan, Changes in		0	141
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	3,476	3,942	(1,208)
Defined Benefit Plan, Amortization of Prior Service Credit, Reclassification from Regulatory Asset and/or AOCI, before tax	293	293	319
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	0	0	(121)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(3,183)	(3,649)	1,547
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	(4,096)	(3,997)	542
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(293)	(293)	(319)
System Energy [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	5,525	5,749	7,746
Defined Benefit Plan, Interest Cost	13,525	13,852	11,286
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(18,485)	(17,585)	(18,173)
Defined Benefit Plan, Amortization of Gain (Loss)	4,638	4,236	10,938
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(615)	(6,375)	(9,905)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	5,818	12,627	21,702
Defined Benefit Plan, Amount Recognized as a Regulatory Asset and/or AOCI, Gain (Loss) Arising During Period, before Tax	9,812	3,268	7,063
Defined Benefit Plan, Amortization of Net Gain (Loss), Reclassification from Regulatory Asset and/or AOCI, before tax	(4,638)	(4,236)	(10,938)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Charge, Reclassification Adjustment from AOCI, before Tax	(615)	(6,375)	(9,905)
Other Comprehensive Income Reclassification Of Defined Benefit Plans Total Recognized In Net Periodic Benefit Cost Before Tax	(15,065)	(13,879)	(27,906)
Defined Benefit Plan, Total Amount Recognized as net periodic pension cost, regulatory asset, and/or AOCI, before tax	$ (9,247)	$ (1,252)	$ (6,204)