Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues [Abstract]
Revenues	$ 3,328,849	$ 2,953,620	$ 6,175,723	$ 5,748,248
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	636,274	522,550	980,796	1,139,166
Utilities Operating Expense, Purchased Power	376,105	200,705	721,851	428,847
Nuclear Refueling Outage Expenses	29,613	38,277	62,654	76,540
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	724,463	701,775	1,397,130	1,388,806
Asset Impairment Charges	0	0	0	131,775
Accretion Expense, Including Asset Retirement Obligations	56,569	54,193	112,498	107,574
Taxes, Other	201,774	187,520	400,539	379,949
Cost, Depreciation and Amortization	522,583	505,363	1,035,526	1,005,024
Other Regulatory Charges (Credits) - Net	(55,957)	125,607	(72,800)	234,954
Costs and Expenses, Total	2,491,424	2,335,990	4,638,194	4,892,635
Operating Income (Loss), Total	837,425	617,630	1,537,529	855,613
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	51,305	29,275	95,323	56,070
Investment Income, Net	87,419	70,587	120,825	221,283
Other Nonoperating Income (Expense)	(43,722)	(342,549)	(28,996)	(393,294)
Nonoperating Income (Expense), Total	95,002	(242,687)	187,152	(115,941)
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	343,067	301,263	691,451	579,006
Public Utilities, Allowance for Funds Used During Construction, Additions	20,993	11,686	39,586	22,229
Interest Expense, Nonoperating, Total	322,074	289,577	651,865	556,777
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	610,353	85,366	1,072,816	182,895
Income Tax Expense (Benefit)	138,399	33,634	238,440	54,627
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	471,954	51,732	834,376	128,268
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests	4,024	2,810	5,686	4,065
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 467,930	$ 48,922	$ 828,690	$ 124,203
Earnings Per Share [Abstract]
Earnings Per Share, Basic	$ 1.07	$ 0.11	$ 1.91	$ 0.29
Earnings Per Share, Diluted	$ 1.05	$ 0.11	$ 1.87	$ 0.29
Weighted Average Number of Shares Outstanding, Basic	439,182,369	427,234,219	434,789,473	426,760,829
Weighted Average Number of Shares Outstanding, Diluted	445,700,889	428,753,441	443,446,875	428,311,535
Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	$ 3,274,945	$ 2,906,047	$ 6,032,811	$ 5,612,553
Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	40,778	35,357	112,509	101,024
Product and Service, Other [Member]
Revenues [Abstract]
Revenues	13,126	12,216	30,403	34,671
Entergy Mississippi [Member]
Revenues [Abstract]
Revenues	491,875	442,894	915,584	857,750
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	53,061	63,978	79,112	181,827
Utilities Operating Expense, Purchased Power	90,660	66,848	178,171	134,502
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	85,066	67,700	163,866	138,906
Taxes, Other	43,800	37,496	87,310	75,806
Cost, Depreciation and Amortization	68,478	67,130	136,462	133,048
Other Regulatory Charges (Credits) - Net	16,767	9,873	52,354	3,382
Costs and Expenses, Total	357,832	313,025	697,275	667,471
Operating Income (Loss), Total	134,043	129,869	218,309	190,279
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	5,142	3,094	10,412	5,012
Investment Income, Net	6,553	948	8,870	1,141
Other Nonoperating Income (Expense)	(777)	(1,771)	3,317	(3,393)
Nonoperating Income (Expense), Total	10,918	2,271	22,599	2,760
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	36,540	28,499	72,720	54,896
Public Utilities, Allowance for Funds Used During Construction, Additions	1,966	1,204	3,982	1,951
Interest Expense, Nonoperating, Total	34,574	27,295	68,738	52,945
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	110,387	104,845	172,170	140,094
Income Tax Expense (Benefit)	26,115	25,280	41,032	33,097
Net Income (Loss)	84,684	81,298	134,029	111,032
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	84,272	79,565	131,138	106,997
Net Income (Loss) Attributable to Noncontrolling Interest	(412)	(1,733)	(2,891)	(4,035)
Entergy Mississippi [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(412)	(1,733)
Entergy Mississippi [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	491,875	442,894	915,584	857,750
Entergy Arkansas [Member]
Revenues [Abstract]
Revenues	697,687	608,798	1,311,198	1,230,843
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	113,093	52,756	160,652	159,195
Utilities Operating Expense, Purchased Power	58,964	55,602	123,911	107,922
Nuclear Refueling Outage Expenses	10,668	14,101	21,249	28,189
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	180,510	174,835	352,028	352,876
Asset Impairment Charges	0	0	0	131,775
Accretion Expense, Including Asset Retirement Obligations	24,988	22,832	49,610	45,479
Taxes, Other	35,430	34,390	71,411	70,614
Cost, Depreciation and Amortization	117,121	103,966	230,389	206,957
Other Regulatory Charges (Credits) - Net	(7,763)	(20,934)	(12,880)	27,685
Costs and Expenses, Total	533,011	437,548	996,370	1,130,692
Operating Income (Loss), Total	164,676	171,250	314,828	100,151
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	5,355	5,862	9,617	11,394
Investment Income, Net	14,801	5,181	28,380	77,941
Other Nonoperating Income (Expense)	(3,547)	(2,799)	(6,325)	(6,380)
Nonoperating Income (Expense), Total	16,609	8,244	31,672	82,955
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	59,057	54,879	116,800	104,144
Public Utilities, Allowance for Funds Used During Construction, Additions	2,642	2,864	4,695	5,563
Interest Expense, Nonoperating, Total	56,415	52,015	112,105	98,581
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	124,870	127,479	234,395	84,525
Income Tax Expense (Benefit)	25,677	32,120	48,679	21,446
Net Income (Loss)	100,082	96,184	187,796	65,722
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	99,193	95,359	185,716	63,079
Net Income (Loss) Attributable to Noncontrolling Interest	(889)	(825)	(2,080)	(2,643)
Entergy Arkansas [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(889)	(825)
Entergy Arkansas [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	697,687	608,798	1,311,198	1,230,843
Entergy Louisiana [Member]
Revenues [Abstract]
Revenues	1,510,063	1,276,124	2,811,610	2,478,564
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	326,256	246,571	540,108	486,658
Utilities Operating Expense, Purchased Power	297,179	166,868	558,967	367,148
Nuclear Refueling Outage Expenses	14,809	20,041	33,180	37,554
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	275,187	275,168	533,224	536,147
Accretion Expense, Including Asset Retirement Obligations	19,608	20,061	39,025	39,725
Taxes, Other	68,010	70,629	134,231	140,468
Cost, Depreciation and Amortization	201,842	190,861	399,464	380,405
Other Regulatory Charges (Credits) - Net	(61,915)	120,298	(109,148)	111,944
Costs and Expenses, Total	1,140,976	1,110,497	2,129,051	2,100,049
Operating Income (Loss), Total	369,087	165,627	682,559	378,515
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	18,470	7,522	33,676	14,807
Other Nonoperating Income (Expense)	(33,797)	(20,646)	(16,726)	(67,821)
Nonoperating Income (Expense), Total	113,467	82,180	223,403	185,657
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	116,524	98,536	237,858	195,731
Public Utilities, Allowance for Funds Used During Construction, Additions	6,691	2,593	12,876	5,070
Interest Expense, Nonoperating, Total	109,833	95,943	224,982	190,661
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	372,721	151,864	680,980	373,511
Income Tax Expense (Benefit)	72,541	20,750	126,603	59,674
Net Income (Loss)	299,435	130,326	552,880	312,254
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	300,180	131,114	554,377	313,837
Net Income (Loss) Attributable to Noncontrolling Interest	745	788	1,497	1,583
Entergy Louisiana [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	745	788
Entergy Louisiana [Member] | Affiliated Entity [Member]
Nonoperating Income (Expense) [Abstract]
Investment Income, Net	75,195	80,075	151,766	160,479
Entergy Louisiana [Member] | Nonrelated Party [Member]
Nonoperating Income (Expense) [Abstract]
Investment Income, Net	53,599	15,229	54,687	78,192
Entergy Louisiana [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	1,495,504	1,261,444	2,767,450	2,434,237
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	14,559	14,680	44,160	44,327
Entergy New Orleans [Member]
Revenues [Abstract]
Revenues	210,000	199,341	391,055	392,302
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	26,546	18,314	38,909	49,139
Utilities Operating Expense, Purchased Power	69,126	64,318	136,867	124,700
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	44,269	41,720	82,927	85,052
Taxes, Other	14,979	14,187	29,872	29,609
Cost, Depreciation and Amortization	22,358	21,130	44,203	42,044
Other Regulatory Charges (Credits) - Net	(3,160)	1,659	(6,590)	83,179
Costs and Expenses, Total	174,118	161,328	326,188	413,723
Operating Income (Loss), Total	35,882	38,013	64,867	(21,421)
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	494	511	800	889
Investment Income, Net	168	316	602	457
Other Nonoperating Income (Expense)	(794)	381	(1,373)	352
Nonoperating Income (Expense), Total	(132)	1,208	29	1,698
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	12,236	10,810	25,711	20,336
Public Utilities, Allowance for Funds Used During Construction, Additions	272	214	439	371
Interest Expense, Nonoperating, Total	11,964	10,596	25,272	19,965
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	23,786	28,625	39,624	(39,688)
Income Tax Expense (Benefit)	5,744	7,492	9,483	(11,841)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	18,042	21,133	30,141	(27,847)
Entergy New Orleans [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	183,781	178,664	322,706	335,605
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	26,219	20,677	68,349	56,697
Entergy Texas [Member]
Revenues [Abstract]
Revenues	531,641	519,077	973,580	963,568
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	96,736	115,520	121,128	211,657
Utilities Operating Expense, Purchased Power	124,880	88,713	257,498	183,056
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	83,818	83,176	158,273	161,136
Taxes, Other	29,792	22,979	60,419	47,546
Cost, Depreciation and Amortization	80,830	90,824	161,510	180,329
Other Regulatory Charges (Credits) - Net	2,587	(12,477)	5,844	(13,452)
Costs and Expenses, Total	418,643	388,735	764,672	770,272
Operating Income (Loss), Total	112,998	130,342	208,908	193,296
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	19,963	10,834	37,335	20,082
Investment Income, Net	1,975	2,791	4,734	6,695
Other Nonoperating Income (Expense)	(2,477)	(3,186)	(3,631)	(5,498)
Nonoperating Income (Expense), Total	19,461	10,439	38,438	21,279
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	43,147	34,483	86,219	66,449
Public Utilities, Allowance for Funds Used During Construction, Additions	8,502	4,219	15,887	7,821
Interest Expense, Nonoperating, Total	34,645	30,264	70,332	58,628
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	97,814	110,517	177,014	155,947
Income Tax Expense (Benefit)	16,318	20,295	28,662	28,981
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	81,496	90,222	148,352	126,966
Preferred Stock Dividends, Income Statement Impact	518	518	1,036	1,036
Net Income (Loss) Available to Common Stockholders, Basic, Total	80,978	89,704	147,316	125,930
Entergy Texas [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	531,641	519,077	973,580	963,568
System Energy [Member]
Revenues [Abstract]
Revenues	143,858	145,934	285,669	298,554
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	16,122	17,120	30,938	30,237
Nuclear Refueling Outage Expenses	4,135	4,136	8,225	10,797
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	47,016	45,746	90,495	97,169
Accretion Expense, Including Asset Retirement Obligations	11,257	10,815	22,401	21,522
Taxes, Other	6,555	6,892	13,359	14,101
Cost, Depreciation and Amortization	31,063	30,443	61,827	60,121
Other Regulatory Charges (Credits) - Net	(2,473)	27,188	(2,380)	22,215
Costs and Expenses, Total	113,675	142,340	224,865	256,162
Operating Income (Loss), Total	30,183	3,594	60,804	42,392
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	1,881	1,451	3,484	3,885
Investment Income, Net	10,672	38,967	23,111	46,940
Other Nonoperating Income (Expense)	56	(165)	293	72
Nonoperating Income (Expense), Total	12,609	40,253	26,888	50,897
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	17,270	12,072	33,292	23,243
Public Utilities, Allowance for Funds Used During Construction, Additions	922	594	1,709	1,453
Interest Expense, Nonoperating, Total	16,348	11,478	31,583	21,790
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	26,444	32,369	56,109	71,499
Income Tax Expense (Benefit)	5,119	7,521	11,395	15,533
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 21,325	$ 24,848	$ 44,714	$ 55,966