Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,595,522	$ 4,218,615	$ 9,422,607	$ 10,491,737
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	707,491	1,366,811	2,189,592	2,685,694
Utilities Operating Expense, Purchased Power	309,376	415,066	754,199	1,255,318
Nuclear refueling outage expenses	39,057	39,707	111,075	119,625
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	751,763	793,145	2,043,184	2,249,674
Asset Impairment Charges	38,078	(143)	38,078	(163,464)
Decommissioning	52,336	49,263	153,981	174,171
Taxes, Other	197,654	190,056	566,669	542,448
Other Depreciation and Amortization	439,873	453,288	1,362,728	1,337,019
Other regulatory charges (credits) - net	(83,489)	(43,283)	(158,317)	689,355
Costs and Expenses	2,452,139	3,263,910	7,061,189	8,889,840
OPERATING INCOME	1,143,383	954,705	2,361,418	1,601,897
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	24,225	20,245	72,238	49,685
Investment Income, Net	2,562	2,966	96,250	(118,002)
Miscellaneous - net	(18,018)	(10,462)	(121,014)	32,720
TOTAL	8,769	12,749	47,474	(35,597)
INTEREST EXPENSE
Interest Expense, Debt	264,934	235,322	781,613	694,558
Allowance for borrowed funds used during construction	(9,493)	(7,862)	(29,565)	(18,710)
TOTAL	255,441	227,460	752,048	675,848
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	896,711	739,994	1,656,844	890,452
Income taxes	226,997	184,112	282,818	(109,034)
Consolidated net income	669,714	555,882	1,374,026	999,486
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	$ 2,959	$ (4,707)	$ 5,092	$ 2,794
Earnings per average common share:
Basic (in dollars per share)	$ 3.15	$ 2.76	$ 6.47	$ 4.90
Diluted (in dollars per share)	$ 3.14	$ 2.74	$ 6.45	$ 4.88
Basic average number of common shares outstanding (in shares)	211,459,244	203,445,773	211,420,117	203,259,373
Diluted average number of common shares outstanding (in shares)	212,238,117	204,578,013	212,195,735	204,357,916
Net Income (Loss) Available to Common Stockholders, Basic	$ 666,755	$ 560,589	$ 1,368,934	$ 996,692
Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	3,526,935	4,110,058	9,195,588	10,024,089
Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	32,305	46,548	130,389	166,917
Competitive Businesses [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	36,282	62,009	96,630	300,731
Entergy Mississippi [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	538,815	459,132	1,396,373	1,213,620
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	151,755	86,145	453,570	197,093
Utilities Operating Expense, Purchased Power	89,465	84,653	212,419	235,211
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	78,959	82,698	217,377	223,407
Taxes, Other	42,374	37,045	113,409	102,259
Other Depreciation and Amortization	66,760	61,921	196,135	182,623
Other regulatory charges (credits) - net	(25,470)	(11,470)	(84,260)	16,290
Costs and Expenses	403,843	340,992	1,108,650	956,883
OPERATING INCOME	134,972	118,140	287,723	256,737
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	2,260	1,606	6,313	4,179
Investment Income, Net	107	136	1,890	234
Miscellaneous - net	(3,828)	181	(9,349)	17
TOTAL	(1,461)	1,923	(1,146)	4,430
INTEREST EXPENSE
Interest Expense, Debt	25,257	22,473	74,634	63,910
Allowance for borrowed funds used during construction	(911)	(753)	(2,596)	(1,876)
TOTAL	24,346	21,720	72,038	62,034
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	109,165	98,343	214,539	199,133
Income taxes	26,428	23,454	52,597	44,935
Consolidated net income	82,737	74,889	161,942	154,198
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	(1,640)	(9,117)	(7,404)	(9,117)
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	84,377	84,006	169,346	163,315
Entergy Mississippi [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	538,815	459,132	1,396,373	1,213,620
Entergy Mississippi [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Entergy Arkansas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	831,659	864,502	2,030,755	2,120,397
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	156,778	210,099	372,637	499,119
Utilities Operating Expense, Purchased Power	74,837	74,941	197,236	182,621
Nuclear refueling outage expenses	14,772	14,259	45,617	42,539
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	196,408	204,199	531,271	548,775
Asset Impairment Charges	78,434	0	78,434	0
Decommissioning	21,989	20,731	65,006	61,288
Taxes, Other	40,157	39,545	107,251	104,819
Other Depreciation and Amortization	101,957	96,746	298,105	288,904
Other regulatory charges (credits) - net	(26,380)	(27,054)	(66,409)	(69,114)
Costs and Expenses	658,952	633,466	1,629,148	1,658,951
OPERATING INCOME	172,707	231,036	401,607	461,446
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	5,579	4,811	15,822	11,786
Investment Income, Net	4,627	4,284	17,833	13,444
Miscellaneous - net	(8,030)	(6,356)	(16,370)	(16,640)
TOTAL	2,176	2,739	17,285	8,590
INTEREST EXPENSE
Interest Expense, Debt	47,648	38,123	139,053	111,622
Allowance for borrowed funds used during construction	(2,241)	(1,912)	(6,355)	(4,684)
TOTAL	45,407	36,211	132,698	106,938
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	129,476	197,564	286,194	363,098
Income taxes	30,307	48,217	60,681	85,074
Consolidated net income	99,169	149,347	225,513	278,024
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	(791)	(724)	(3,426)	(2,640)
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	99,960	150,071	228,939	280,664
Entergy Arkansas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	831,659	864,502	2,030,755	2,120,397
Entergy Arkansas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Entergy Louisiana [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,434,867	2,020,798	3,985,687	4,802,555
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	242,886	833,885	848,521	1,449,464
Utilities Operating Expense, Purchased Power	162,934	251,582	491,244	848,328
Nuclear refueling outage expenses	17,569	18,966	45,430	40,942
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	285,251	298,710	781,339	846,457
Decommissioning	19,138	18,137	56,544	53,736
Taxes, Other	60,360	60,346	185,978	180,527
Other Depreciation and Amortization	184,188	176,403	541,530	517,205
Other regulatory charges (credits) - net	(21,470)	(9,959)	27,759	172,605
Costs and Expenses	950,856	1,648,070	2,978,345	4,109,264
OPERATING INCOME	484,011	372,728	1,007,342	693,291
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	6,945	8,280	24,660	17,865
Investment Income, Net	(11,482)	(8,861)	49,241	(93,241)
Miscellaneous - net	(6,411)	6,835	(97,079)	59,338
TOTAL	70,023	61,617	195,096	114,426
INTEREST EXPENSE
Interest Expense, Debt	93,857	92,020	285,959	278,559
Allowance for borrowed funds used during construction	(3,019)	(3,518)	(11,733)	(7,762)
TOTAL	90,838	88,502	274,226	270,797
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	463,196	345,843	928,212	536,920
Income taxes	103,889	71,453	61,621	(204,989)
Consolidated net income	359,307	274,390	866,591	741,909
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	810	554	2,183	812
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	358,497	273,836	864,408	741,097
Entergy Louisiana [Member] | Affiliated Entity
OTHER INCOME (DEDUCTIONS)
Investment Income, Net	80,971	55,363	218,274	130,464
Entergy Louisiana [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,421,598	2,003,009	3,933,259	4,738,188
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	13,269	17,789	52,428	64,367
Entergy New Orleans [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	254,316	291,663	651,152	744,184
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	28,922	81,847	99,920	180,059
Utilities Operating Expense, Purchased Power	68,115	88,103	200,664	227,661
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	45,273	38,806	117,461	116,173
Taxes, Other	17,251	12,920	48,155	41,353
Other Depreciation and Amortization	20,831	19,556	60,470	57,322
Other regulatory charges (credits) - net	4,946	5,452	6,133	14,991
Costs and Expenses	185,338	246,684	532,803	637,559
OPERATING INCOME	68,978	44,979	118,349	106,625
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	332	396	1,062	316
Investment Income, Net	1,535	215	5,986	307
Miscellaneous - net	(1,943)	(184)	(2,687)	766
TOTAL	(76)	427	4,361	1,389
INTEREST EXPENSE
Interest Expense, Debt	9,171	8,683	28,793	26,075
Allowance for borrowed funds used during construction	(161)	(215)	(516)	(255)
TOTAL	9,010	8,468	28,277	25,820
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	59,892	36,938	94,433	82,194
Income taxes	16,347	10,023	26,889	20,607
Consolidated net income	43,545	26,915	67,544	61,587
Entergy New Orleans [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	235,280	262,904	573,191	641,634
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	19,036	28,759	77,961	102,550
Entergy Texas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	616,595	659,556	1,588,531	1,696,629
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	94,099	113,154	325,155	247,929
Utilities Operating Expense, Purchased Power	131,927	208,703	352,568	564,809
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	85,929	83,014	213,430	230,580
Taxes, Other	28,372	29,886	85,085	73,817
Other Depreciation and Amortization	76,888	58,472	202,288	171,781
Other regulatory charges (credits) - net	(5,909)	8,072	6,541	43,917
Costs and Expenses	411,306	501,301	1,185,067	1,332,833
OPERATING INCOME	205,289	158,255	403,464	363,796
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	7,244	3,616	19,093	9,375
Investment Income, Net	2,741	1,062	5,004	1,597
Miscellaneous - net	(619)	(1,655)	(2,121)	(1,757)
TOTAL	9,366	3,023	21,976	9,215
INTEREST EXPENSE
Interest Expense, Debt	29,524	24,613	83,333	68,626
Allowance for borrowed funds used during construction	(2,714)	(1,218)	(7,127)	(3,150)
TOTAL	26,810	23,395	76,206	65,476
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	187,845	137,883	349,234	307,535
Income taxes	37,756	19,881	69,015	41,645
Consolidated net income	150,089	118,002	280,219	265,890
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	518	518	1,554	1,554
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	149,571	117,484	278,665	264,336
Entergy Texas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	616,595	659,556	1,588,531	1,696,629
Entergy Texas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
System Energy [Member]
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	18,881	12,125	56,511	31,658
Nuclear refueling outage expenses	6,717	6,483	20,028	17,730
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	52,623	69,719	149,809	168,308
Decommissioning	10,495	10,117	31,173	30,050
Taxes, Other	7,261	7,430	22,271	22,431
Other Depreciation and Amortization	(11,597)	38,742	60,843	106,442
Other regulatory charges (credits) - net	(9,207)	(8,324)	(48,081)	510,667
Costs and Expenses	75,173	136,292	292,554	887,286
OPERATING INCOME	44,294	43,508	136,869	(402,238)
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	1,866	1,536	5,289	6,164
Investment Income, Net	2,738	3,669	10,140	(58)
Miscellaneous - net	(1,405)	(9,028)	(12,096)	(13,408)
TOTAL	3,199	(3,823)	3,333	(7,302)
INTEREST EXPENSE
Interest Expense, Debt	12,199	9,189	36,325	27,782
Allowance for borrowed funds used during construction	(448)	(246)	(1,239)	(982)
TOTAL	11,751	8,943	35,086	26,800
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	35,742	30,742	105,116	(436,340)
Income taxes	8,045	3,385	24,115	(114,981)
Consolidated net income	27,697	27,357	81,001	(321,359)
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	27,697	27,357	81,001	(321,359)
System Energy [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 119,467	$ 179,800	$ 429,423	$ 485,048