Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenues [Abstract]
Revenues	$ 3,812,019	$ 3,389,100	$ 9,987,742	$ 9,137,348
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	822,798	647,982	1,803,594	1,787,148
Utilities Operating Expense, Purchased Power	269,740	213,072	991,591	641,919
Nuclear Refueling Outage Expenses	25,225	36,280	87,879	112,820
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	771,166	722,887	2,168,296	2,111,692
Asset Impairment Charges	12,795	0	12,795	131,775
Accretion Expense, Including Asset Retirement Obligations	57,313	55,320	169,811	162,894
Taxes, Other	232,371	192,127	632,910	572,077
Cost, Depreciation and Amortization	525,385	498,481	1,560,911	1,503,505
Other Regulatory Charges (Credits) - Net	(23,815)	(102,911)	(96,615)	132,043
Costs and Expenses, Total	2,692,978	2,263,238	7,331,172	7,155,873
Operating Income (Loss), Total	1,119,041	1,125,862	2,656,570	1,981,475
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	53,887	33,126	149,210	89,196
Investment Income, Net	106,090	64,316	226,915	285,600
Other Nonoperating Income (Expense)	(50,409)	(66,932)	(79,405)	(460,226)
Nonoperating Income (Expense), Total	109,568	30,510	296,720	(85,430)
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	346,992	308,502	1,038,443	887,508
Public Utilities, Allowance for Funds Used During Construction, Additions	22,114	13,359	61,700	35,588
Interest Expense, Nonoperating, Total	324,878	295,143	976,743	851,920
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	903,731	861,229	1,976,547	1,044,125
Income Tax Expense (Benefit)	205,307	215,475	443,747	270,103
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	698,424	645,754	1,532,800	774,022
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests	4,624	814	10,310	4,879
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 693,800	$ 644,940	$ 1,522,490	$ 769,143
Earnings Per Share [Abstract]
Earnings Per Share, Basic	$ 1.55	$ 1.51	$ 3.47	$ 1.80
Earnings Per Share, Diluted	$ 1.53	$ 1.50	$ 3.40	$ 1.79
Weighted Average Number of Shares Outstanding, Basic	446,532,648	428,024,935	438,746,880	427,185,273
Weighted Average Number of Shares Outstanding, Diluted	453,550,895	431,388,418	447,250,827	429,473,900
Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	$ 3,797,177	$ 3,337,820	$ 9,829,988	$ 8,950,373
Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	155	32,318	112,664	133,342
Product and Service, Other [Member]
Revenues [Abstract]
Revenues	14,687	18,962	45,090	53,633
Entergy Mississippi [Member]
Revenues [Abstract]
Revenues	577,132	508,171	1,492,716	1,365,921
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	55,639	43,223	134,751	225,050
Utilities Operating Expense, Purchased Power	102,140	85,939	280,311	220,441
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	92,577	86,016	256,443	224,922
Taxes, Other	51,641	48,461	138,951	124,267
Cost, Depreciation and Amortization	69,081	68,167	205,543	201,215
Other Regulatory Charges (Credits) - Net	19,796	26,844	72,150	30,226
Costs and Expenses, Total	390,874	358,650	1,088,149	1,026,121
Operating Income (Loss), Total	186,258	149,521	404,567	339,800
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	5,492	1,227	15,904	6,239
Investment Income, Net	5,126	338	13,996	1,479
Other Nonoperating Income (Expense)	(306)	(5,626)	3,011	(9,019)
Nonoperating Income (Expense), Total	10,312	(4,061)	32,911	(1,301)
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	37,912	28,109	110,632	83,005
Public Utilities, Allowance for Funds Used During Construction, Additions	2,054	468	6,036	2,419
Interest Expense, Nonoperating, Total	35,858	27,641	104,596	80,586
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	160,712	117,819	332,882	257,913
Income Tax Expense (Benefit)	38,672	29,436	79,704	62,533
Net Income (Loss)	121,974	91,967	256,003	202,999
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	122,040	88,383	253,178	195,380
Net Income (Loss) Attributable to Noncontrolling Interest	66	(3,584)	(2,825)	(7,619)
Entergy Mississippi [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	66	(3,584)
Entergy Mississippi [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	577,132	508,171	1,492,716	1,365,921
Entergy Arkansas [Member]
Revenues [Abstract]
Revenues	864,063	662,148	2,175,261	1,892,991
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	111,248	74,310	271,900	233,505
Utilities Operating Expense, Purchased Power	73,737	64,308	197,648	172,230
Nuclear Refueling Outage Expenses	10,770	12,482	32,019	40,671
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	203,797	193,007	555,825	545,883
Asset Impairment Charges	0	0	0	131,775
Accretion Expense, Including Asset Retirement Obligations	25,359	23,366	74,969	68,845
Taxes, Other	52,953	40,600	124,364	111,214
Cost, Depreciation and Amortization	118,005	106,004	348,394	312,961
Other Regulatory Charges (Credits) - Net	(11,323)	(109,305)	(24,203)	(81,620)
Costs and Expenses, Total	584,546	404,772	1,580,916	1,535,464
Operating Income (Loss), Total	279,517	257,376	594,345	357,527
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	6,838	8,052	16,455	19,446
Investment Income, Net	19,566	16,983	47,946	94,924
Other Nonoperating Income (Expense)	(2,366)	(7,493)	(8,691)	(13,873)
Nonoperating Income (Expense), Total	24,038	17,542	55,710	100,497
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	60,819	57,214	177,619	161,358
Public Utilities, Allowance for Funds Used During Construction, Additions	3,234	3,928	7,929	9,491
Interest Expense, Nonoperating, Total	57,585	53,286	169,690	151,867
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	245,970	221,632	480,365	306,157
Income Tax Expense (Benefit)	54,230	35,862	102,909	57,308
Net Income (Loss)	192,492	186,727	380,288	252,449
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	191,740	185,770	377,456	248,849
Net Income (Loss) Attributable to Noncontrolling Interest	(752)	(957)	(2,832)	(3,600)
Entergy Arkansas [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(752)	(957)
Entergy Arkansas [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	864,063	662,148	2,175,261	1,892,991
Entergy Louisiana [Member]
Revenues [Abstract]
Revenues	1,633,197	1,478,093	4,444,807	3,956,657
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	457,405	328,444	997,513	815,102
Utilities Operating Expense, Purchased Power	191,852	147,281	750,819	514,429
Nuclear Refueling Outage Expenses	10,260	19,617	43,440	57,171
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	288,595	266,743	821,819	802,890
Accretion Expense, Including Asset Retirement Obligations	19,857	20,340	58,882	60,065
Taxes, Other	70,661	52,006	204,892	192,474
Cost, Depreciation and Amortization	204,742	193,422	604,206	573,827
Other Regulatory Charges (Credits) - Net	(38,283)	(18,689)	(147,431)	93,255
Costs and Expenses, Total	1,205,089	1,009,164	3,334,140	3,109,213
Operating Income (Loss), Total	428,108	468,929	1,110,667	847,444
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	17,780	8,653	51,456	23,460
Other Nonoperating Income (Expense)	(42,636)	(38,689)	(59,362)	(106,510)
Nonoperating Income (Expense), Total	112,590	82,023	335,993	267,680
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	121,008	101,842	358,866	297,573
Public Utilities, Allowance for Funds Used During Construction, Additions	6,498	2,988	19,374	8,058
Interest Expense, Nonoperating, Total	114,510	98,854	339,492	289,515
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	426,188	452,098	1,107,168	825,609
Income Tax Expense (Benefit)	83,299	102,303	209,902	161,977
Net Income (Loss)	342,158	349,020	895,038	661,274
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	342,889	349,795	897,266	663,632
Net Income (Loss) Attributable to Noncontrolling Interest	731	775	2,228	2,358
Entergy Louisiana [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	731	775
Entergy Louisiana [Member] | Affiliated Entity [Member]
Nonoperating Income (Expense) [Abstract]
Investment Income, Net	74,351	77,877	226,117	238,356
Entergy Louisiana [Member] | Nonrelated Party [Member]
Nonoperating Income (Expense) [Abstract]
Investment Income, Net	63,095	34,182	117,782	112,374
Entergy Louisiana [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	1,633,050	1,464,627	4,400,500	3,898,864
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	147	13,466	44,307	57,793
Entergy New Orleans [Member]
Revenues [Abstract]
Revenues	220,298	232,515	611,353	624,817
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	33,798	19,385	72,707	68,524
Utilities Operating Expense, Purchased Power	67,849	67,947	204,716	192,647
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	36,341	42,500	119,268	127,552
Asset Impairment Charges	12,795	0	12,795	0
Taxes, Other	15,454	16,509	45,326	46,118
Cost, Depreciation and Amortization	19,064	21,199	63,267	63,243
Other Regulatory Charges (Credits) - Net	(3,786)	1,738	(10,376)	84,917
Costs and Expenses, Total	181,515	169,278	507,703	583,001
Operating Income (Loss), Total	38,783	63,237	103,650	41,816
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	491	572	1,291	1,461
Investment Income, Net	1,172	421	1,774	878
Other Nonoperating Income (Expense)	(1,001)	(298)	(2,374)	54
Nonoperating Income (Expense), Total	662	695	691	2,393
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	11,972	10,600	37,683	30,936
Public Utilities, Allowance for Funds Used During Construction, Additions	270	238	709	609
Interest Expense, Nonoperating, Total	11,702	10,362	36,974	30,327
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	27,743	53,570	67,367	13,882
Income Tax Expense (Benefit)	7,080	14,438	16,563	2,597
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	20,663	39,132	50,804	11,285
Entergy New Orleans [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	220,290	213,663	542,996	549,268
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	8	18,852	68,357	75,549
Entergy Texas [Member]
Revenues [Abstract]
Revenues	640,291	596,998	1,613,871	1,560,566
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	142,264	154,340	263,392	365,997
Utilities Operating Expense, Purchased Power	114,286	93,327	371,784	276,383
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	90,278	80,377	248,551	241,513
Taxes, Other	30,604	25,181	91,023	72,727
Cost, Depreciation and Amortization	82,551	78,331	244,061	258,660
Other Regulatory Charges (Credits) - Net	5,353	4,850	11,197	(8,602)
Costs and Expenses, Total	465,336	436,406	1,230,008	1,206,678
Operating Income (Loss), Total	174,955	160,592	383,863	353,888
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	21,148	12,976	58,483	33,058
Investment Income, Net	230	4,269	4,964	10,964
Other Nonoperating Income (Expense)	(2,426)	(2,756)	(6,057)	(8,254)
Nonoperating Income (Expense), Total	18,952	14,489	57,390	35,768
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	43,881	34,393	130,100	100,842
Public Utilities, Allowance for Funds Used During Construction, Additions	9,010	5,051	24,897	12,872
Interest Expense, Nonoperating, Total	34,871	29,342	105,203	87,970
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	159,036	145,739	336,050	301,686
Income Tax Expense (Benefit)	29,030	27,428	57,692	56,409
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	130,006	118,311	278,358	245,277
Preferred Stock Dividends, Income Statement Impact	518	518	1,554	1,554
Net Income (Loss) Available to Common Stockholders, Basic, Total	129,488	117,793	276,804	243,723
Entergy Texas [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	640,291	596,998	1,613,871	1,560,566
System Energy [Member]
Revenues [Abstract]
Revenues	148,071	147,339	433,740	445,893
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	16,748	17,427	47,686	47,664
Nuclear Refueling Outage Expenses	4,194	4,180	12,419	14,977
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	48,454	47,868	138,949	145,037
Accretion Expense, Including Asset Retirement Obligations	11,369	10,923	33,770	32,445
Taxes, Other	6,855	6,802	20,214	20,903
Cost, Depreciation and Amortization	31,125	30,518	92,952	90,639
Other Regulatory Charges (Credits) - Net	4,427	(8,347)	2,047	13,868
Costs and Expenses, Total	123,172	109,371	348,037	365,533
Operating Income (Loss), Total	24,899	37,968	85,703	80,360
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	2,136	1,647	5,620	5,532
Investment Income, Net	17,404	5,288	40,515	52,228
Other Nonoperating Income (Expense)	(537)	360	(244)	432
Nonoperating Income (Expense), Total	19,003	7,295	45,891	58,192
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	17,997	11,652	51,289	34,895
Public Utilities, Allowance for Funds Used During Construction, Additions	1,045	685	2,754	2,138
Interest Expense, Nonoperating, Total	16,952	10,967	48,535	32,757
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	26,950	34,296	83,059	105,795
Income Tax Expense (Benefit)	5,679	8,219	17,074	23,752
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 21,271	$ 26,077	$ 65,985	$ 82,043