Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,981,059	$ 2,877,925
Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	582,749	558,956
Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,345,208	1,265,972
Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	412,428	349,029
Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	208,820	198,272
Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	507,506	472,482
Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,883,411	2,655,776
Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	582,749	558,956
Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,319,752	1,237,237
Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	412,428	349,029
Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	169,695	154,646
Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	507,506	472,482
Natural Gas, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	64,581	72,361
Natural Gas, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Natural Gas, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	25,456	28,735
Natural Gas, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Natural Gas, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	39,125	43,626
Natural Gas, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Competitive Businesses [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	33,067	149,788
Residential [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,041,460	986,023
Residential [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	239,499	227,786
Residential [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	360,647	353,567
Residential [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	169,389	152,939
Residential [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	63,566	58,658
Residential [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	208,359	193,073
Commercial [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	714,300	634,626
Commercial [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	125,336	113,238
Commercial [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	278,178	257,591
Commercial [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	133,676	110,661
Commercial [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	54,069	45,572
Commercial [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	123,041	107,564
Industrial [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	863,723	743,634
Industrial [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	131,237	109,675
Industrial [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	509,904	451,954
Industrial [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	51,415	39,157
Industrial [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7,413	6,272
Industrial [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	163,754	136,576
Governmental [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	67,337	57,292
Governmental [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,660	4,460
Governmental [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	23,074	19,016
Governmental [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	13,883	12,000
Governmental [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	17,798	15,033
Governmental [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7,922	6,783
Billed Retail [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,686,820	2,421,575
Billed Retail [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	500,732	455,159
Billed Retail [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,171,803	1,082,128
Billed Retail [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	368,363	314,757
Billed Retail [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	142,846	125,535
Billed Retail [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	503,076	443,996
Sales for Resale [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	107,947	128,959
Sales for Resale [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	66,018	70,414
Sales for Resale [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	83,237	107,701
Sales for Resale [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	38,743	21,641
Sales for Resale [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	24,910	26,540
Sales for Resale [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,445	17,644
Non-Customer [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	44,187	11,362
Non-Customer [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,281	2,811
Non-Customer [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	38,145	5,926
Non-Customer [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,448	2,294
Non-Customer [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,522	1,178
Non-Customer [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(239)	(607)
Other Electric [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	44,457	93,880
Other Electric [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	13,718	30,572
Other Electric [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	26,567	41,482
Other Electric [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,874	10,337
Other Electric [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	417	1,393
Other Electric [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,224	11,449
Revenues from customers [Member] | Electricity [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,839,224	2,644,414
Revenues from customers [Member] | Electricity [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	580,468	556,145
Revenues from customers [Member] | Electricity [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,281,607	1,231,311
Revenues from customers [Member] | Electricity [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	409,980	346,735
Revenues from customers [Member] | Electricity [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	168,173	153,468
Revenues from customers [Member] | Electricity [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	507,745	473,089
Competitive Business Sales [Member] | Competitive Businesses [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 33,067	$ 149,788