Retirement, Other Postretirement Benefits, And Defined Contribution Plans Schedule Of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	$ 24,734	$ 26,578	$ 24,500
Interest cost	27,306	21,278	28,597
Expected return on assets	(43,420)	(43,220)	(40,880)
-25550000	(25,550)	(33,069)	(32,882)
Recognized net loss	4,333	2,853	3,481
Net pension cost	(12,597)	(25,580)	(17,184)
Prior service credit for period	(858)	(3,168)	(128,837)
Net (gain)/loss	(131,524)	6,210	41,031
Amortization of prior service cost/(credit)	25,550	33,069	32,882
Amortization of net loss	4,333	2,853	3,481
Total	(111,165)	33,258	(58,405)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	(123,762)	7,678	(75,589)
Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	140,000	165,500
-25550000	56,800	74,900
Net pension cost	30,900	28,600	18,100
Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	5,700,000	7,800,000
Service cost - benefits earned during the period	138,085	165,278	161,487
Interest cost	235,805	191,107	239,614
Expected return on assets	(402,504)	(424,572)	(414,273)
Recognized net loss	188,683	334,124	350,010
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(230,389)	(205,878)	(36,946)
Net pension cost	390,458	471,815	373,784
Net (gain)/loss	6,113	(448,532)	483,653
Amortization of net loss	(188,683)	(334,124)	(358,473)
Total	(412,959)	(988,534)	88,234
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	(22,501)	(516,719)	462,018
Entergy Arkansas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	4,457	4,135	3,626
Interest cost	5,050	3,726	4,712
Expected return on assets	(17,930)	(18,020)	(17,104)
-25550000	1,885	(1,121)	(1,849)
Recognized net loss	873	196	540
Net pension cost	(5,665)	(11,084)	(10,075)
Prior service credit for period	(273)	85	(12,320)
Net (gain)/loss	12,894	9,956	2,245
Amortization of prior service cost/(credit)	(1,885)	1,121	1,849
Amortization of net loss	873	196	540
Total	10,409	10,796	15,874
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	4,744	(288)	5,799
Entergy Arkansas [Member] | Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	2,192	2,482
Net pension cost	282	343	333
Entergy Arkansas [Member] | Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	1,008,152	1,463,966
Service cost - benefits earned during the period	25,210	28,632	26,329
Interest cost	45,378	35,683	44,165
Expected return on assets	(75,820)	(78,368)	(78,187)
Recognized net loss	43,597	69,290	68,338
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(36,409)	(37,682)	(21,078)
Net pension cost	74,774	92,919	81,723
Net (gain)/loss	28,365	(96,066)	106,178
Amortization of net loss	(43,597)	(69,290)	(69,713)
Total	(51,641)	(203,038)	15,387
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	23,133	(110,119)	97,110
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	5,633	6,174	5,993
Interest cost	5,770	4,520	6,216
Expected return on assets	0	0	0
-25550000	(4,630)	(4,920)	(6,179)
Recognized net loss	(744)	(364)	(447)
Net pension cost	6,029	5,410	5,583
Prior service credit for period	(323)	(357)	23,508
Net (gain)/loss	(65,501)	(2,367)	8,744
Amortization of prior service cost/(credit)	4,630	4,920	6,179
Amortization of net loss	(744)	(364)	(447)
Total	(59,804)	3,274	(8,138)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	(53,775)	8,684	(2,555)
Entergy Louisiana [Member] | Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	1,197	1,445
Net pension cost	102	307	148
Entergy Louisiana [Member] | Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	1,146,561	1,574,273
Service cost - benefits earned during the period	33,520	38,271	35,158
Interest cost	49,330	39,740	50,432
Expected return on assets	(82,478)	(89,821)	(89,691)
Recognized net loss	41,711	67,015	66,640
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(58,550)	(61,945)	(8,109)
Net pension cost	100,633	117,150	70,648
Net (gain)/loss	(15,604)	(89,534)	90,064
Amortization of net loss	(41,711)	(67,015)	(68,248)
Total	(115,865)	(218,494)	13,707
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	(15,232)	(101,344)	84,355
Entergy Mississippi [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,354	1,448	1,468
Interest cost	1,401	1,110	1,536
Expected return on assets	(5,575)	(5,536)	(5,167)
-25550000	(1,772)	(1,775)	(1,652)
Recognized net loss	222	76	171
Net pension cost	(4,370)	(4,677)	(3,644)
Prior service credit for period	1,300	0	4,428
Net (gain)/loss	6,629	(2,823)	(4,456)
Amortization of prior service cost/(credit)	1,772	1,775	1,652
Amortization of net loss	222	76	171
Total	6,879	(1,124)	(7,403)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	2,509	(5,801)	(11,047)
Entergy Mississippi [Member] | Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	3,594	3,377
Net pension cost	321	365	359
Entergy Mississippi [Member] | Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	292,596	407,851
Service cost - benefits earned during the period	8,043	9,070	8,060
Interest cost	12,979	10,446	12,922
Expected return on assets	(20,168)	(22,407)	(23,147)
Recognized net loss	12,594	20,007	18,983
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(15,786)	(16,710)	(3,366)
Net pension cost	29,234	33,826	20,184
Net (gain)/loss	(4,743)	(29,675)	36,899
Amortization of net loss	(12,594)	(20,007)	(19,393)
Total	(33,123)	(66,392)	14,140
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	(3,889)	(32,566)	34,324
Entergy New Orleans [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	397	437	445
Interest cost	694	521	784
Expected return on assets	(5,997)	(5,750)	(5,382)
-25550000	(916)	(916)	(763)
Recognized net loss	(898)	(712)	(13)
Net pension cost	(6,720)	(6,420)	(4,929)
Prior service credit for period	0	0	5,493
Net (gain)/loss	17,334	(3,330)	(5,351)
Amortization of prior service cost/(credit)	916	916	763
Amortization of net loss	(898)	(712)	(13)
Total	19,148	(1,702)	(10,068)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	12,428	(8,122)	(14,997)
Entergy New Orleans [Member] | Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	719	738
Net pension cost	114	30	31
Entergy New Orleans [Member] | Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	128,499	178,010
Service cost - benefits earned during the period	2,745	3,038	2,654
Interest cost	5,491	4,392	5,825
Expected return on assets	(9,920)	(10,598)	(10,509)
Recognized net loss	4,787	7,596	8,018
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(6,676)	(5,431)	0
Net pension cost	9,779	9,859	5,988
Net (gain)/loss	525	(16,159)	8,148
Amortization of net loss	(4,787)	(7,596)	(8,213)
Total	(10,938)	(29,186)	(65)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	(1,159)	(19,327)	5,923
Entergy Texas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,322	1,384	1,219
Interest cost	1,596	1,269	2,008
Expected return on assets	(10,273)	(10,192)	(9,643)
-25550000	(4,371)	(3,742)	(3,364)
Recognized net loss	648	398	907
Net pension cost	(11,078)	(10,883)	(8,873)
Prior service credit for period	0	3,776	22,441
Net (gain)/loss	22,323	939	(3,266)
Amortization of prior service cost/(credit)	4,371	3,742	3,364
Amortization of net loss	648	398	907
Total	26,046	507	(23,250)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	14,968	(10,376)	(32,123)
Entergy Texas [Member] | Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	3,776	7,355
Net pension cost	1,320	615	469
Entergy Texas [Member] | Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	245,428	342,441
Service cost - benefits earned during the period	5,999	6,921	6,116
Interest cost	10,729	8,381	10,731
Expected return on assets	(18,317)	(21,158)	(21,951)
Recognized net loss	9,013	12,676	13,173
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(22,411)	(11,797)	(4,289)
Net pension cost	29,835	18,617	12,358
Net (gain)/loss	13,363	(18,217)	13,379
Amortization of net loss	(9,013)	(12,676)	(13,564)
Total	(18,061)	(42,690)	(4,474)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	11,774	(24,073)	7,884
System Energy [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,239	1,340	1,254
Interest cost	1,116	878	1,130
Expected return on assets	(3,162)	(3,156)	(2,958)
-25550000	(319)	(436)	(1,065)
Recognized net loss	121	61	121
Net pension cost	(1,005)	(1,313)	(1,518)
Prior service credit for period	(141)	(69)	1,963
Net (gain)/loss	1,208	210	58
Amortization of prior service cost/(credit)	319	436	1,065
Amortization of net loss	121	61	121
Total	1,547	654	(961)
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	542	(659)	(2,479)
System Energy [Member] | Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated pension benefit obligation	269,583	366,920
Service cost - benefits earned during the period	7,746	8,851	7,883
Interest cost	11,286	9,087	11,006
Expected return on assets	(18,173)	(19,254)	(18,757)
Recognized net loss	10,938	18,404	17,104
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	(9,905)	(12,260)	(105)
Net pension cost	21,702	29,348	17,341
Net (gain)/loss	(7,063)	(27,617)	35,403
Amortization of net loss	(10,938)	(18,404)	(17,434)
Total	(27,906)	(58,281)	17,864
Total recognized as net periodic benefit cost, regulatory asset, and/or AOCI (before tax)	$ (6,204)	$ (28,933)	$ 35,205