Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 13,764,237	$ 11,742,896	$ 10,113,636
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	3,732,851	2,458,096	1,564,371
Nuclear refueling outage expenses	156,032	172,636	184,157
Operation and maintenance expense	3,038,459	2,968,621	3,002,626
Asset Impairment Charges	(163,464)	263,625	26,623
Decommissioning	224,076	306,411	381,861
Taxes, Other	733,538	660,290	652,840
Other Depreciation and Amortization	1,761,023	1,684,286	1,613,086
Other regulatory charges (credits) - net	669,403	111,628	14,609
Costs and Expenses	11,713,462	9,897,270	8,344,441
Operating income (loss)	2,050,775	1,845,626	1,769,195
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	72,832	70,473	119,430
Investment Income, Net	(75,581)	430,466	392,818
Miscellaneous - net	(77,629)	(201,778)	(210,633)
TOTAL	(80,378)	299,161	301,615
INTEREST EXPENSE
Interest Expense, Debt	940,060	863,712	837,981
Allowance for borrowed funds used during construction	(27,823)	(29,018)	(52,318)
TOTAL	912,237	834,694	785,663
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	1,058,160	1,310,093	1,285,147
Income Tax Expense (Benefit)	(38,978)	191,374	(121,506)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	1,097,138	1,118,719	1,406,653
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	(6,028)	227	18,319
Net Income (Loss) Available to Common Stockholders, Basic	$ 1,103,166	$ 1,118,492	$ 1,388,334
Earnings per average common share:
Basic (in usd per share)	$ 5.40	$ 5.57	$ 6.94
Diluted (in usd per share)	$ 5.37	$ 5.54	$ 6.90
Basic average number of common shares outstanding	204,450,354	200,941,511	200,106,945
Diluted average number of common shares outstanding	205,547,578	201,873,024	201,102,220
Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 13,186,845	$ 10,873,995	$ 9,046,643
Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	233,920	170,610	124,008
Competitive Businesses [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	343,472	698,291	942,985
Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	1,561,544	1,271,677	904,268
Entergy Arkansas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	2,673,194	2,338,590	2,084,494
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	640,344	347,166	271,896
Nuclear refueling outage expenses	53,438	51,141	55,737
Operation and maintenance expense	754,293	687,418	669,518
Decommissioning	82,326	77,696	73,319
Taxes, Other	136,565	127,249	121,057
Other Depreciation and Amortization	386,272	361,479	338,029
Other regulatory charges (credits) - net	(89,418)	(31,501)	(35,310)
Costs and Expenses	2,165,546	1,901,152	1,681,936
Operating income (loss)	507,648	437,438	402,558
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	17,787	15,273	15,019
Investment Income, Net	19,554	76,953	35,579
Miscellaneous - net	(27,348)	(22,278)	(21,908)
TOTAL	9,993	69,948	28,690
INTEREST EXPENSE
Interest Expense, Debt	150,928	140,348	144,834
Allowance for borrowed funds used during construction	(7,070)	(6,641)	(6,595)
TOTAL	143,858	133,707	138,239
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	373,783	373,679	293,009
Income Tax Expense (Benefit)	80,896	75,195	47,777
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	292,887	298,484	245,232
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	(4,358)	(18,092)	0
Net Income (Loss) Available to Common Stockholders, Basic	297,245	316,576	245,232
Entergy Arkansas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	2,673,194	2,338,590	2,084,494
Entergy Arkansas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Arkansas [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	201,726	280,504	187,690
Entergy Louisiana [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	6,338,768	5,068,448	4,069,862
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	2,002,456	1,302,291	700,152
Nuclear refueling outage expenses	59,698	49,373	55,305
Operation and maintenance expense	1,139,605	1,034,427	969,630
Decommissioning	72,122	68,575	65,225
Taxes, Other	241,908	224,079	208,902
Other Depreciation and Amortization	695,204	656,132	609,931
Other regulatory charges (credits) - net	148,871	38,245	(584)
Costs and Expenses	5,436,579	4,141,668	3,205,041
Operating income (loss)	902,189	926,780	864,821
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	26,252	28,648	38,151
Investment Income, Net	(69,144)	154,606	98,033
Investments in and Advances to Affiliates, Dividends or Interest	185,826	127,594	127,594
Miscellaneous - net	9,824	(125,886)	(116,366)
TOTAL	152,758	184,962	147,412
INTEREST EXPENSE
Interest Expense, Debt	373,480	350,227	331,352
Allowance for borrowed funds used during construction	(11,550)	(12,878)	(19,147)
TOTAL	361,930	337,349	312,205
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	693,017	774,393	700,028
Income Tax Expense (Benefit)	(162,853)	120,409	(382,324)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	855,870	653,984	1,082,352
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	1,366	0	0
Net Income (Loss) Available to Common Stockholders, Basic	854,504	653,984	1,082,352
Entergy Louisiana [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	6,246,933	4,994,459	4,019,063
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	91,835	73,989	50,799
Entergy Louisiana [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	1,076,715	768,546	596,480
Entergy Mississippi [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,624,234	1,406,346	1,247,854
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	252,760	181,511	187,087
Operation and maintenance expense	314,902	298,129	288,543
Taxes, Other	137,541	111,712	101,525
Other Depreciation and Amortization	246,063	226,545	209,252
Other regulatory charges (credits) - net	38,017	5,913	(15,219)
Costs and Expenses	1,311,957	1,121,844	1,011,659
Operating income (loss)	312,277	284,502	236,195
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	6,125	8,101	6,726
Investment Income, Net	508	53	272
Miscellaneous - net	(3,619)	(8,791)	(9,253)
TOTAL	3,014	(637)	(2,255)
INTEREST EXPENSE
Interest Expense, Debt	86,960	75,124	68,945
Allowance for borrowed funds used during construction	(2,800)	(3,416)	(2,778)
TOTAL	84,160	71,708	66,167
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	231,131	212,157	167,773
Income Tax Expense (Benefit)	54,864	45,323	27,190
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	176,267	166,834	140,583
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	(21,355)	0	0
Net Income (Loss) Available to Common Stockholders, Basic	197,622	166,834	140,583
Entergy Mississippi [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,624,234	1,406,346	1,247,854
Entergy Mississippi [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Mississippi [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	322,674	298,034	240,471
Entergy New Orleans [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	997,333	768,852	633,841
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	244,994	150,018	76,781
Operation and maintenance expense	156,653	145,377	125,756
Taxes, Other	63,743	53,569	57,454
Other Depreciation and Amortization	76,938	73,480	64,012
Other regulatory charges (credits) - net	19,596	13,177	1,854
Costs and Expenses	876,207	704,189	569,429
Operating income (loss)	121,126	64,663	64,412
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	829	2,371	6,339
Investment Income, Net	742	48	120
Miscellaneous - net	(21)	(1,240)	316
TOTAL	1,550	1,179	6,775
INTEREST EXPENSE
Interest Expense, Debt	34,829	29,164	29,105
Allowance for borrowed funds used during construction	(531)	(1,056)	(3,049)
TOTAL	34,298	28,108	26,056
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	88,378	37,734	45,131
Income Tax Expense (Benefit)	24,277	5,936	(4,207)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	64,101	31,798	49,338
Entergy New Orleans [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	855,248	672,231	560,632
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	142,085	96,621	73,209
Entergy New Orleans [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	314,283	268,568	243,572
Entergy Texas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	2,288,905	1,902,511	1,587,125
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	443,765	335,742	238,428
Operation and maintenance expense	312,340	281,713	250,170
Taxes, Other	101,673	94,989	72,909
Other Depreciation and Amortization	230,692	214,838	177,738
Other regulatory charges (credits) - net	49,175	59,581	90,398
Costs and Expenses	1,855,146	1,575,804	1,340,276
Operating income (loss)	433,759	326,707	246,849
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	13,527	9,892	44,073
Investment Income, Net	4,141	837	1,201
Miscellaneous - net	(6,572)	721	(28)
TOTAL	11,096	11,450	45,246
INTEREST EXPENSE
Interest Expense, Debt	95,454	87,787	92,920
Allowance for borrowed funds used during construction	(4,547)	(3,980)	(18,940)
TOTAL	90,907	83,807	73,980
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	353,948	254,350	218,115
Income Tax Expense (Benefit)	50,621	25,526	3,042
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	303,327	228,824	215,073
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	2,072	1,909	1,882
Net Income (Loss) Available to Common Stockholders, Basic	301,255	226,915	213,191
Entergy Texas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	2,288,905	1,902,511	1,587,125
Entergy Texas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Texas [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	717,501	588,941	510,633
System Energy [Member]
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	50,216	58,313	23,026
Nuclear refueling outage expenses	24,482	27,244	27,737
Operation and maintenance expense	226,557	214,322	178,249
Decommissioning	40,235	38,693	37,181
Taxes, Other	29,428	27,842	28,657
Other Depreciation and Amortization	111,889	105,978	110,395
Other regulatory charges (credits) - net	503,162	26,214	(26,531)
Costs and Expenses	985,969	498,606	378,714
Operating income (loss)	(327,157)	72,242	116,744
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	8,312	6,188	9,122
Investment Income, Net	5,096	82,744	36,478
Miscellaneous - net	(19,616)	(18,991)	(10,012)
TOTAL	(6,208)	69,941	35,588
INTEREST EXPENSE
Interest Expense, Debt	37,381	38,393	34,467
Allowance for borrowed funds used during construction	(1,325)	(1,047)	(1,809)
TOTAL	36,056	37,346	32,658
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(369,421)	104,837	119,674
Income Tax Expense (Benefit)	(92,828)	(1,977)	20,543
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(276,593)	106,814	99,131
Net Income (Loss) Available to Common Stockholders, Basic	(276,593)	106,814	99,131
System Energy [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 658,812	$ 570,848	$ 495,458