Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,981,059	$ 2,877,925
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	898,384	666,938
Utilities Operating Expense, Purchased Power	238,288	269,626
Nuclear refueling outage expenses	37,233	43,002
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	631,526	678,812
Asset Impairment Charges	0	744
Decommissioning	50,493	62,048
Taxes, Other	185,437	180,148
Other Depreciation and Amortization	453,916	438,972
Other regulatory charges (credits) - net	23,673	(28,425)
Costs and Expenses	2,518,950	2,311,865
OPERATING INCOME	462,109	566,060
OTHER INCOME
Allowance for equity funds used during construction	23,146	15,871
Investment Income, Net	48,259	(21,918)
Miscellaneous - net	(54,452)	7,603
TOTAL	16,953	1,556
INTEREST EXPENSE
Interest Expense, Debt	255,329	227,622
Allowance for borrowed funds used during construction	(9,591)	(6,096)
TOTAL	245,738	221,526
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	233,324	346,090
Income taxes	(78,975)	66,497
Consolidated net income	312,299	279,593
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	$ 1,364	$ 3,193
Earnings per average common share:
Basic (in dollars per share)	$ 1.47	$ 1.36
Diluted (in dollars per share)	$ 1.47	$ 1.36
Basic average number of common shares outstanding (in shares)	211,350,705	202,943,628
Diluted average number of common shares outstanding (in shares)	212,146,507	203,888,483
Net Income (Loss) Available to Common Stockholders, Basic	$ 310,935	$ 276,400
Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	2,883,411	2,655,776
Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	64,581	72,361
Competitive Businesses [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	33,067	149,788
Entergy Mississippi [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	412,428	349,029
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	161,285	67,277
Utilities Operating Expense, Purchased Power	63,814	61,212
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	69,818	65,811
Taxes, Other	35,734	32,730
Other Depreciation and Amortization	64,029	60,084
Other regulatory charges (credits) - net	(32,843)	3,907
Costs and Expenses	361,837	291,021
OPERATING INCOME	50,591	58,008
OTHER INCOME
Allowance for equity funds used during construction	1,884	1,078
Investment Income, Net	464	64
Miscellaneous - net	(2,083)	(1,153)
TOTAL	265	(11)
INTEREST EXPENSE
Interest Expense, Debt	23,944	20,434
Allowance for borrowed funds used during construction	(783)	(465)
TOTAL	23,161	19,969
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	27,695	38,028
Income taxes	6,755	7,673
Consolidated net income	20,940	30,355
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	(2,141)	0
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	23,081	30,355
Entergy Mississippi [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	412,428	349,029
Entergy Mississippi [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Entergy Arkansas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	582,749	558,956
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	113,509	86,225
Utilities Operating Expense, Purchased Power	64,751	57,471
Nuclear refueling outage expenses	15,341	14,070
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	156,819	157,257
Decommissioning	21,350	20,129
Taxes, Other	32,351	33,202
Other Depreciation and Amortization	96,441	95,610
Other regulatory charges (credits) - net	(20,844)	(20,542)
Costs and Expenses	479,718	443,422
OPERATING INCOME	103,031	115,534
OTHER INCOME
Allowance for equity funds used during construction	4,843	3,055
Investment Income, Net	7,479	6,320
Miscellaneous - net	(2,100)	(5,392)
TOTAL	10,222	3,983
INTEREST EXPENSE
Interest Expense, Debt	45,367	36,047
Allowance for borrowed funds used during construction	(1,945)	(1,214)
TOTAL	43,422	34,833
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	69,831	84,684
Income taxes	10,434	19,117
Consolidated net income	59,397	65,567
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	(1,629)	(1,387)
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	61,026	66,954
Entergy Arkansas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	582,749	558,956
Entergy Arkansas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Entergy Louisiana [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,345,208	1,265,972
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	375,270	362,074
Utilities Operating Expense, Purchased Power	194,934	176,197
Nuclear refueling outage expenses	15,273	11,947
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	246,371	254,001
Decommissioning	18,586	17,688
Taxes, Other	63,955	61,615
Other Depreciation and Amortization	176,095	169,083
Other regulatory charges (credits) - net	73,996	(20,897)
Costs and Expenses	1,164,480	1,031,708
OPERATING INCOME	180,728	234,264
OTHER INCOME
Allowance for equity funds used during construction	9,061	6,726
Investment Income, Net	28,843	(15,998)
Investments in and Advances to Affiliates, Dividends or Interest	55,426	31,898
Miscellaneous - net	(48,085)	15,517
TOTAL	45,245	38,143
INTEREST EXPENSE
Interest Expense, Debt	97,171	93,784
Allowance for borrowed funds used during construction	(4,393)	(3,026)
TOTAL	92,778	90,758
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	133,195	181,649
Income taxes	(110,829)	30,789
Consolidated net income	244,024	150,860
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	554	0
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	243,470	150,860
Entergy Louisiana [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	1,319,752	1,237,237
Entergy Louisiana [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	25,456	28,735
Entergy New Orleans [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	208,820	198,272
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	52,024	43,397
Utilities Operating Expense, Purchased Power	66,620	56,470
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	33,227	33,652
Taxes, Other	16,424	13,989
Other Depreciation and Amortization	19,575	19,815
Other regulatory charges (credits) - net	(1,101)	4,185
Costs and Expenses	186,769	171,508
OPERATING INCOME	22,051	26,764
OTHER INCOME
Allowance for equity funds used during construction	450	369
Investment Income, Net	2,051	24
Miscellaneous - net	(227)	(271)
TOTAL	2,274	122
INTEREST EXPENSE
Interest Expense, Debt	9,619	8,694
Allowance for borrowed funds used during construction	(219)	(199)
TOTAL	9,400	8,495
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	14,925	18,391
Income taxes	4,783	3,265
Consolidated net income	10,142	15,126
Entergy New Orleans [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	169,695	154,646
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	39,125	43,626
Entergy Texas [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	507,506	472,482
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	167,530	73,920
Utilities Operating Expense, Purchased Power	107,758	161,090
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	64,430	74,977
Taxes, Other	27,996	20,449
Other Depreciation and Amortization	59,391	56,061
Other regulatory charges (credits) - net	10,924	13,446
Costs and Expenses	438,029	399,943
OPERATING INCOME	69,477	72,539
OTHER INCOME
Allowance for equity funds used during construction	5,089	2,596
Investment Income, Net	1,417	188
Miscellaneous - net	439	307
TOTAL	6,945	3,091
INTEREST EXPENSE
Interest Expense, Debt	26,962	20,912
Allowance for borrowed funds used during construction	(1,896)	(865)
TOTAL	25,066	20,047
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	51,356	55,583
Income taxes	9,683	5,180
Consolidated net income	41,673	50,403
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	518	518
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	41,155	49,885
Entergy Texas [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	507,506	472,482
Entergy Texas [Member] | Natural Gas, US Regulated [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
System Energy [Member]
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	18,847	7,923
Nuclear refueling outage expenses	6,619	5,927
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses	50,200	43,904
Decommissioning	10,287	9,917
Taxes, Other	7,282	7,851
Other Depreciation and Amortization	37,137	29,923
Other regulatory charges (credits) - net	(6,459)	(8,524)
Costs and Expenses	123,913	96,921
OPERATING INCOME	47,659	44,455
OTHER INCOME
Allowance for equity funds used during construction	1,818	2,047
Investment Income, Net	5,764	5,232
Miscellaneous - net	(9,078)	(1,639)
TOTAL	(1,496)	5,640
INTEREST EXPENSE
Interest Expense, Debt	10,491	9,481
Allowance for borrowed funds used during construction	(355)	(327)
TOTAL	10,136	9,154
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	36,027	40,941
Income taxes	8,482	9,509
Consolidated net income	27,545	31,432
Earnings per average common share:
Net Income (Loss) Available to Common Stockholders, Basic	27,545	31,432
System Energy [Member] | Electricity [Member]
REVENUES
Revenue from Contract with Customer, Excluding Assessed Tax	$ 171,572	$ 141,376