Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenues [Abstract]
Revenues	$ 2,846,874	$ 2,794,628
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	344,522	616,617
Utilities Operating Expense, Purchased Power	345,746	228,142
Nuclear Refueling Outage Expenses	33,041	38,263
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	672,667	687,031
Asset Impairment Charges	0	131,775
Accretion Expense, Including Asset Retirement Obligations	55,929	53,382
Taxes, Other	198,765	192,429
Cost, Depreciation and Amortization	512,943	499,661
Other Regulatory Charges (Credits) - Net	(16,843)	109,346
Costs and Expenses, Total	2,146,770	2,556,646
Operating Income (Loss), Total	700,104	237,982
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	44,018	26,794
Investment Income, Net	33,406	150,697
Other Nonoperating Income (Expense)	14,726	(50,743)
Nonoperating Income (Expense), Total	92,150	126,748
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	348,384	277,743
Public Utilities, Allowance for Funds Used During Construction, Additions	18,593	10,543
Interest Expense, Nonoperating, Total	329,791	267,200
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	462,463	97,530
Income Tax Expense (Benefit)	100,041	20,994
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	362,422	76,536
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests	1,662	1,255
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 360,760	$ 75,281
Earnings Per Share [Abstract]
Earnings Per Share, Basic	$ 0.84	$ 0.18
Earnings Per Share, Diluted	$ 0.82	$ 0.18
Weighted Average Number of Shares Outstanding, Basic	430,347,768	426,287,439
Weighted Average Number of Shares Outstanding, Diluted	440,648,342	427,746,256
Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	$ 2,757,866	$ 2,706,506
Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	71,731	65,667
Product and Service, Other [Member]
Revenues [Abstract]
Revenues	17,277	22,455
Entergy Mississippi [Member]
Revenues [Abstract]
Revenues	423,709	414,856
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	26,051	117,850
Utilities Operating Expense, Purchased Power	87,511	67,655
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	78,800	71,206
Taxes, Other	43,510	38,310
Cost, Depreciation and Amortization	67,984	65,917
Other Regulatory Charges (Credits) - Net	35,587	(6,491)
Costs and Expenses, Total	339,443	354,447
Operating Income (Loss), Total	84,266	60,409
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	5,270	1,918
Investment Income, Net	2,317	193
Other Nonoperating Income (Expense)	4,094	(1,621)
Nonoperating Income (Expense), Total	11,681	490
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	36,180	26,397
Public Utilities, Allowance for Funds Used During Construction, Additions	2,016	747
Interest Expense, Nonoperating, Total	34,164	25,650
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	61,783	35,249
Income Tax Expense (Benefit)	14,917	7,817
Net Income (Loss)	49,345	29,734
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	46,866	27,432
Net Income (Loss) Attributable to Noncontrolling Interest	(2,479)	(2,302)
Entergy Mississippi [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(2,479)	(2,302)
Entergy Mississippi [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	423,709	414,856
Entergy Arkansas [Member]
Revenues [Abstract]
Revenues	613,511	622,045
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	47,559	106,439
Utilities Operating Expense, Purchased Power	64,947	52,320
Nuclear Refueling Outage Expenses	10,581	14,088
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	171,518	178,041
Asset Impairment Charges	0	131,775
Accretion Expense, Including Asset Retirement Obligations	24,622	22,647
Taxes, Other	35,981	36,224
Cost, Depreciation and Amortization	113,268	102,991
Other Regulatory Charges (Credits) - Net	(5,117)	48,619
Costs and Expenses, Total	463,359	693,144
Operating Income (Loss), Total	150,152	(71,099)
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	4,262	5,532
Investment Income, Net	13,579	72,760
Other Nonoperating Income (Expense)	(2,778)	(3,581)
Nonoperating Income (Expense), Total	15,063	74,711
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	57,743	49,265
Public Utilities, Allowance for Funds Used During Construction, Additions	2,053	2,699
Interest Expense, Nonoperating, Total	55,690	46,566
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	109,525	(42,954)
Income Tax Expense (Benefit)	23,002	(10,674)
Net Income (Loss)	87,714	(30,462)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	86,523	(32,280)
Net Income (Loss) Attributable to Noncontrolling Interest	(1,191)	(1,818)
Entergy Arkansas [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(1,191)	(1,818)
Entergy Arkansas [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	613,511	622,045
Entergy Louisiana [Member]
Revenues [Abstract]
Revenues	1,301,547	1,202,440
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	213,852	240,087
Utilities Operating Expense, Purchased Power	261,788	200,280
Nuclear Refueling Outage Expenses	18,371	17,513
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	258,037	260,979
Accretion Expense, Including Asset Retirement Obligations	19,417	19,664
Taxes, Other	66,221	69,839
Cost, Depreciation and Amortization	197,622	189,544
Other Regulatory Charges (Credits) - Net	(47,233)	(8,354)
Costs and Expenses, Total	988,075	989,552
Operating Income (Loss), Total	313,472	212,888
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	15,206	7,285
Other Nonoperating Income (Expense)	17,071	(47,175)
Nonoperating Income (Expense), Total	109,936	103,477
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	121,334	97,195
Public Utilities, Allowance for Funds Used During Construction, Additions	6,185	2,477
Interest Expense, Nonoperating, Total	115,149	94,718
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	308,259	221,647
Income Tax Expense (Benefit)	54,062	38,924
Net Income (Loss)	253,445	181,928
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	254,197	182,723
Net Income (Loss) Attributable to Noncontrolling Interest	752	795
Entergy Louisiana [Member] | Noncontrolling Interest [Member]
Interest Expense, Operating and Nonoperating [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	752	795
Entergy Louisiana [Member] | Affiliated Entity [Member]
Nonoperating Income (Expense) [Abstract]
Investment Income, Net	76,571	80,404
Entergy Louisiana [Member] | Nonrelated Party [Member]
Nonoperating Income (Expense) [Abstract]
Investment Income, Net	1,088	62,963
Entergy Louisiana [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	1,271,946	1,172,793
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	29,601	29,647
Entergy New Orleans [Member]
Revenues [Abstract]
Revenues	181,055	192,961
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	12,363	30,825
Utilities Operating Expense, Purchased Power	67,741	60,382
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	38,658	43,332
Taxes, Other	14,893	15,422
Cost, Depreciation and Amortization	21,845	20,914
Other Regulatory Charges (Credits) - Net	(3,430)	81,520
Costs and Expenses, Total	152,070	252,395
Operating Income (Loss), Total	28,985	(59,434)
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	306	378
Investment Income, Net	434	141
Other Nonoperating Income (Expense)	(579)	(29)
Nonoperating Income (Expense), Total	161	490
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	13,475	9,526
Public Utilities, Allowance for Funds Used During Construction, Additions	167	157
Interest Expense, Nonoperating, Total	13,308	9,369
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	15,838	(68,313)
Income Tax Expense (Benefit)	3,739	(19,333)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	12,099	(48,980)
Entergy New Orleans [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	138,925	156,941
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
Revenues [Abstract]
Revenues	42,130	36,020
Entergy Texas [Member]
Revenues [Abstract]
Revenues	441,939	444,491
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	24,392	96,137
Utilities Operating Expense, Purchased Power	132,618	94,343
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	74,455	77,960
Taxes, Other	30,627	24,567
Cost, Depreciation and Amortization	80,680	89,505
Other Regulatory Charges (Credits) - Net	3,257	(975)
Costs and Expenses, Total	346,029	381,537
Operating Income (Loss), Total	95,910	62,954
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	17,372	9,248
Investment Income, Net	2,759	3,904
Other Nonoperating Income (Expense)	(1,154)	(2,312)
Nonoperating Income (Expense), Total	18,977	10,840
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	43,072	31,966
Public Utilities, Allowance for Funds Used During Construction, Additions	7,385	3,602
Interest Expense, Nonoperating, Total	35,687	28,364
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	79,200	45,430
Income Tax Expense (Benefit)	12,344	8,686
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	66,856	36,744
Preferred Stock Dividends, Income Statement Impact	518	518
Net Income (Loss) Available to Common Stockholders, Basic, Total	66,338	36,226
Entergy Texas [Member] | Electricity, US Regulated [Member]
Revenues [Abstract]
Revenues	441,939	444,491
System Energy [Member]
Revenues [Abstract]
Revenues	141,811	152,620
Operation and Maintenance:
Utilities Operating Expense, Fuel Used	14,816	13,117
Nuclear Refueling Outage Expenses	4,090	6,661
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	43,479	51,423
Accretion Expense, Including Asset Retirement Obligations	11,144	10,707
Taxes, Other	6,804	7,209
Cost, Depreciation and Amortization	30,764	29,678
Other Regulatory Charges (Credits) - Net	93	(4,973)
Costs and Expenses, Total	111,190	113,822
Operating Income (Loss), Total	30,621	38,798
Nonoperating Income (Expense) [Abstract]
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	1,603	2,434
Investment Income, Net	12,439	7,973
Other Nonoperating Income (Expense)	237	237
Nonoperating Income (Expense), Total	14,279	10,644
Interest Expense, Operating and Nonoperating [Abstract]
Interest Expense, Debt	16,022	11,171
Public Utilities, Allowance for Funds Used During Construction, Additions	787	859
Interest Expense, Nonoperating, Total	15,235	10,312
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	29,665	39,130
Income Tax Expense (Benefit)	6,276	8,012
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 23,389	$ 31,118