Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,395,196	$ 2,822,070	$ 6,273,122	$ 5,666,907
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	651,946	626,064	1,318,885	1,127,231
Nuclear refueling outage expenses	36,917	43,700	79,918	87,438
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	777,715	781,118	1,456,529	1,487,904
Asset Impairment Charges	(164,066)	342,092	(163,321)	345,365
Decommissioning	62,859	86,199	124,907	184,841
Taxes, Other	172,244	155,911	352,392	312,613
Other Depreciation and Amortization	444,759	421,545	883,731	836,064
Other regulatory charges (credits) - net	761,063	(55,138)	732,638	(22,859)
Costs and Expenses	3,314,064	2,653,862	5,625,930	4,990,702
OPERATING INCOME	81,132	168,208	647,192	676,205
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	13,568	16,873	29,440	31,449
Investment Income, Net	(99,049)	71,329	(120,968)	214,645
Miscellaneous - net	35,578	(62,844)	43,182	(123,773)
TOTAL	(49,903)	25,358	(48,346)	122,321
INTEREST EXPENSE
Interest Expense, Debt	231,613	220,340	459,235	426,226
Allowance for borrowed funds used during construction	(4,752)	(6,964)	(10,848)	(12,976)
TOTAL	226,861	213,376	448,387	413,250
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(195,632)	(19,810)	150,459	385,276
Income taxes	(359,643)	(18,416)	(293,145)	47,526
Consolidated net income	164,011	(1,394)	443,604	337,750
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	$ 4,308	$ 4,580	$ 7,501	$ 9,159
Earnings (loss) per average common share:
Basic (in dollars per share)	$ 0.79	$ (0.03)	$ 2.15	$ 1.64
Diluted (in dollars per share)	$ 0.78	$ (0.03)	$ 2.13	$ 1.63
Basic average number of common shares outstanding (in shares)	203,383,199	200,775,395	203,164,628	200,651,162
Diluted average number of common shares outstanding (in shares)	204,712,242	200,775,395	204,291,597	201,352,830
Net Income (Loss) Available to Common Stockholders, Basic	$ 159,703	$ (5,974)	$ 436,103	$ 328,591
Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	3,258,255	2,641,375	5,914,031	5,179,794
Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	48,008	31,998	120,369	90,166
Competitive Businesses [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	88,933	148,697	238,722	396,947
Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	570,627	252,371	840,251	632,105
Entergy Mississippi [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	405,459	349,040	754,488	685,659
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	43,671	65,613	110,948	125,810
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	74,898	73,899	140,709	141,730
Taxes, Other	32,484	27,076	65,214	52,975
Other Depreciation and Amortization	60,618	56,158	120,702	111,194
Other regulatory charges (credits) - net	23,853	(21,630)	27,760	(13,501)
Costs and Expenses	324,870	265,008	615,891	550,691
OPERATING INCOME	80,589	84,032	138,597	134,968
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	1,495	2,029	2,573	3,697
Investment Income, Net	34	7	98	49
Miscellaneous - net	990	(2,205)	(164)	(4,518)
TOTAL	2,519	(169)	2,507	(772)
INTEREST EXPENSE
Interest Expense, Debt	21,003	18,922	41,437	36,535
Allowance for borrowed funds used during construction	(658)	(852)	(1,123)	(1,529)
TOTAL	20,345	18,070	40,314	35,006
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	62,763	65,793	100,790	99,190
Income taxes	13,808	14,377	21,481	21,802
Consolidated net income	48,955	51,416	79,309	77,388
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	0	0	0	0
Earnings (loss) per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	48,955	51,416	79,309	77,388
Entergy Mississippi [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	405,459	349,040	754,488	685,659
Entergy Mississippi [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Entergy Mississippi [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	89,346	63,892	150,558	132,483
Entergy Arkansas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	696,939	550,274	1,255,895	1,133,660
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	202,795	74,556	289,020	200,737
Nuclear refueling outage expenses	14,210	13,535	28,280	26,182
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	187,319	173,098	344,576	328,006
Decommissioning	20,428	19,280	40,557	38,280
Taxes, Other	32,072	30,106	65,274	59,849
Other Depreciation and Amortization	96,548	90,276	192,158	178,555
Other regulatory charges (credits) - net	(21,518)	(22,170)	(42,060)	(59,637)
Costs and Expenses	582,063	440,129	1,025,485	903,641
OPERATING INCOME	114,876	110,145	230,410	230,019
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	3,920	3,608	6,975	6,601
Investment Income, Net	2,840	(2,739)	9,160	25,148
Miscellaneous - net	(4,892)	(5,372)	(10,284)	(11,163)
TOTAL	1,868	(4,503)	5,851	20,586
INTEREST EXPENSE
Interest Expense, Debt	37,452	35,624	73,499	69,410
Allowance for borrowed funds used during construction	(1,558)	(1,572)	(2,772)	(2,862)
TOTAL	35,894	34,052	70,727	66,548
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	80,850	71,590	165,534	184,057
Income taxes	17,740	14,997	36,857	34,427
Consolidated net income	63,110	56,593	128,677	149,630
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	(529)	0	(1,916)	0
Earnings (loss) per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	63,639	56,593	130,593	149,630
Entergy Arkansas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	696,939	550,274	1,255,895	1,133,660
Entergy Arkansas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Entergy Arkansas [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	50,209	61,448	107,680	131,669
Entergy Louisiana [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,515,785	1,267,598	2,781,757	2,375,242
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	253,505	355,362	615,579	500,596
Nuclear refueling outage expenses	10,029	12,193	21,976	25,475
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	293,746	275,599	547,747	513,082
Decommissioning	17,911	17,035	35,599	33,858
Taxes, Other	58,566	51,968	120,181	104,452
Other Depreciation and Amortization	171,719	163,061	340,802	323,874
Other regulatory charges (credits) - net	203,461	(21,617)	182,564	9,480
Costs and Expenses	1,429,486	1,040,197	2,461,194	1,907,374
OPERATING INCOME	86,299	227,401	320,563	467,868
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	2,859	6,835	9,585	12,936
Investment Income, Net	(68,382)	27,559	(84,380)	68,175
Investments in and Advances to Affiliates, Dividends or Interest	43,203	31,898	75,101	63,797
Miscellaneous - net	36,986	(36,033)	52,503	(70,671)
TOTAL	14,666	30,259	52,809	74,237
INTEREST EXPENSE
Interest Expense, Debt	92,755	90,630	186,539	173,436
Allowance for borrowed funds used during construction	(1,218)	(3,068)	(4,244)	(5,827)
TOTAL	91,537	87,562	182,295	167,609
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	9,428	170,098	191,077	374,496
Income taxes	(307,231)	26,171	(276,442)	63,943
Consolidated net income	316,659	143,927	467,519	310,553
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	258	0	258	0
Earnings (loss) per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	316,401	143,927	467,261	310,553
Entergy Louisiana [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,497,942	1,254,579	2,735,179	2,334,242
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	17,843	13,019	46,578	41,000
Entergy Louisiana [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	420,549	186,596	596,746	396,557
Entergy New Orleans [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	254,249	178,740	452,521	348,075
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	54,815	34,510	98,212	53,522
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	43,715	40,977	77,367	79,155
Taxes, Other	14,444	12,294	28,433	24,850
Other Depreciation and Amortization	17,951	18,153	37,766	36,314
Other regulatory charges (credits) - net	5,354	2,575	9,539	5,705
Costs and Expenses	219,367	165,686	390,875	325,393
OPERATING INCOME	34,882	13,054	61,646	22,682
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	(449)	376	(80)	634
Investment Income, Net	68	5	92	14
Miscellaneous - net	1,221	(204)	950	(506)
TOTAL	840	177	962	142
INTEREST EXPENSE
Interest Expense, Debt	8,698	6,962	17,392	13,991
Allowance for borrowed funds used during construction	159	(167)	(40)	(283)
TOTAL	8,857	6,795	17,352	13,708
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	26,865	6,436	45,256	9,116
Income taxes	7,319	1,805	10,584	2,714
Consolidated net income	19,546	4,631	34,672	6,402
Entergy New Orleans [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	224,084	159,761	378,730	298,909
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	30,165	18,979	73,791	49,166
Entergy New Orleans [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	83,088	57,177	139,558	125,847
Entergy Texas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	564,591	430,434	1,037,073	910,654
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	60,855	64,031	134,775	176,427
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	72,589	70,815	147,566	133,770
Taxes, Other	23,482	20,671	43,931	42,546
Other Depreciation and Amortization	57,248	53,587	113,309	104,523
Other regulatory charges (credits) - net	22,399	25,253	35,845	41,093
Costs and Expenses	431,589	363,056	831,532	768,420
OPERATING INCOME	133,002	67,378	205,541	142,234
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	3,163	2,670	5,759	5,115
Investment Income, Net	347	204	535	428
Miscellaneous - net	(409)	(527)	(102)	(950)
TOTAL	3,101	2,347	6,192	4,593
INTEREST EXPENSE
Interest Expense, Debt	23,101	21,899	44,013	44,937
Allowance for borrowed funds used during construction	(1,067)	(1,075)	(1,932)	(2,059)
TOTAL	22,034	20,824	42,081	42,878
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	114,069	48,901	169,652	103,949
Income taxes	16,584	4,111	21,764	9,101
Consolidated net income	97,485	44,790	147,888	94,848
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	518	471	1,036	941
Earnings (loss) per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	96,967	44,319	146,852	93,907
Entergy Texas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	564,591	430,434	1,037,073	910,654
Entergy Texas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Entergy Texas [Member] | Electricity, Purchased [Member]
Operation and Maintenance:
Cost of Goods and Services Sold	195,016	128,699	356,106	270,061
System Energy [Member]
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	11,610	14,073	19,533	30,932
Nuclear refueling outage expenses	5,320	6,792	11,247	13,510
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	54,685	58,047	98,589	100,007
Decommissioning	10,016	9,625	19,933	19,154
Taxes, Other	7,150	6,968	15,001	13,793
Other Depreciation and Amortization	37,777	25,768	67,700	53,962
Other regulatory charges (credits) - net	527,515	(17,550)	518,991	(6,000)
Costs and Expenses	654,073	103,723	750,994	225,358
OPERATING INCOME	(490,201)	57,590	(445,746)	53,701
OTHER INCOME (DEDUCTIONS)
Allowance for equity funds used during construction	2,581	1,355	4,628	2,466
Investment Income, Net	(8,959)	(2,410)	(3,727)	25,032
Miscellaneous - net	(2,741)	(7,886)	(4,380)	(9,910)
TOTAL	(9,119)	(8,941)	(3,479)	17,588
INTEREST EXPENSE
Interest Expense, Debt	9,112	9,579	18,593	19,114
Allowance for borrowed funds used during construction	(409)	(229)	(736)	(417)
TOTAL	8,703	9,350	17,857	18,697
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(508,023)	39,299	(467,082)	52,592
Income taxes	(127,875)	8,969	(118,366)	(1,602)
Consolidated net income	(380,148)	30,330	(348,716)	54,194
Earnings (loss) per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	(380,148)	30,330	(348,716)	54,194
System Energy [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 163,872	$ 161,313	$ 305,248	$ 279,059