Revenue Recognition Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer, Excluding Assessed Tax	$ 13,764,237	$ 11,742,896	$ 10,113,636
Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	13,186,845	10,873,995	9,046,643
Natural Gas, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	233,920	170,610	124,008
Competitive Businesses [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	343,472	698,291	942,985
Residential [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	4,640,039	3,981,846	3,550,317
Commercial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	3,087,675	2,610,207	2,292,740
Industrial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	3,716,058	2,942,370	2,331,170
Governmental [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	286,605	245,685	212,131
Sales for Resale [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	858,743	601,895	295,810
Other Electric [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	481,256	375,312	348,102
Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	13,070,376	10,757,315	9,030,270
Non-Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	116,469	116,680	16,373
Non-Customer [Member] | Competitive Businesses [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6,399	25,798	171,625
Competitive Business Sales [Member] | Competitive Businesses [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	337,073	672,493	771,360
Billed Retail [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	11,730,377	9,780,108	8,386,358
Entergy Arkansas [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,673,194	2,338,590	2,084,494
Entergy Arkansas [Member] | Electricity [Member]
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]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Arkansas [Member] | Residential [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	946,719	882,773	841,162
Entergy Arkansas [Member] | Commercial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	530,512	480,401	466,273
Entergy Arkansas [Member] | Industrial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	559,147	496,661	461,907
Entergy Arkansas [Member] | Governmental [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	20,186	19,112	18,011
Entergy Arkansas [Member] | Sales for Resale [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	443,685	311,791	173,115
Entergy Arkansas [Member] | Other Electric [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	159,178	130,443	109,642
Entergy Arkansas [Member] | Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,659,427	2,321,181	2,070,110
Entergy Arkansas [Member] | Non-Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	13,767	17,409	14,384
Entergy Arkansas [Member] | Billed Retail [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,056,564	1,878,947	1,787,353
Entergy Louisiana [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6,338,768	5,068,448	4,069,862
Entergy Louisiana [Member] | Electricity [Member]
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]
Revenue from Contract with Customer, Excluding Assessed Tax	91,835	73,989	50,799
Entergy Louisiana [Member] | Residential [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,775,552	1,484,612	1,270,187
Entergy Louisiana [Member] | Commercial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,274,665	1,055,825	886,548
Entergy Louisiana [Member] | Industrial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,275,978	1,771,311	1,314,234
Entergy Louisiana [Member] | Governmental [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	94,910	82,503	68,901
Entergy Louisiana [Member] | Sales for Resale [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	555,640	391,424	333,594
Entergy Louisiana [Member] | Other Electric [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	204,878	148,304	141,004
Entergy Louisiana [Member] | Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6,181,623	4,933,979	4,014,468
Entergy Louisiana [Member] | Non-Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	65,310	60,480	4,595
Entergy Louisiana [Member] | Billed Retail [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	5,421,105	4,394,251	3,539,870
Entergy Mississippi [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,624,234	1,406,346	1,247,854
Entergy Mississippi [Member] | Electricity [Member]
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]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Mississippi [Member] | Residential [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	651,455	578,258	523,379
Entergy Mississippi [Member] | Commercial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	508,996	439,950	395,875
Entergy Mississippi [Member] | Industrial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	182,270	150,698	145,100
Entergy Mississippi [Member] | Governmental [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	52,861	46,248	41,955
Entergy Mississippi [Member] | Sales for Resale [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	167,867	124,632	77,530
Entergy Mississippi [Member] | Other Electric [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	51,554	58,357	54,590
Entergy Mississippi [Member] | Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,615,003	1,398,143	1,238,429
Entergy Mississippi [Member] | Non-Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	9,231	8,203	9,425
Entergy Mississippi [Member] | Billed Retail [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,395,582	1,215,154	1,106,309
Entergy New Orleans [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	997,333	768,852	633,841
Entergy New Orleans [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	855,248	672,231	560,632
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	142,085	96,621	73,209
Entergy New Orleans [Member] | Residential [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	335,471	269,891	243,502
Entergy New Orleans [Member] | Commercial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	256,963	208,104	179,406
Entergy New Orleans [Member] | Industrial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	36,970	30,751	24,248
Entergy New Orleans [Member] | Governmental [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	87,514	71,584	59,819
Entergy New Orleans [Member] | Sales for Resale [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	120,851	88,349	33,213
Entergy New Orleans [Member] | Other Electric [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	13,637	1,813	8,294
Entergy New Orleans [Member] | Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	851,406	670,492	548,482
Entergy New Orleans [Member] | Non-Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	3,842	1,739	12,150
Entergy New Orleans [Member] | Billed Retail [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	716,918	580,330	506,975
Entergy Texas [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,288,905	1,902,511	1,587,125
Entergy Texas [Member] | Electricity [Member]
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]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Texas [Member] | Residential [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	930,842	766,312	672,087
Entergy Texas [Member] | Commercial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	516,539	425,927	364,638
Entergy Texas [Member] | Industrial [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	661,693	492,949	385,681
Entergy Texas [Member] | Governmental [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	31,134	26,238	23,445
Entergy Texas [Member] | Sales for Resale [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	66,782	145,719	100,273
Entergy Texas [Member] | Other Electric [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	57,379	41,805	39,981
Entergy Texas [Member] | Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,264,369	1,898,950	1,586,105
Entergy Texas [Member] | Non-Customer [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	24,536	3,561	1,020
Entergy Texas [Member] | Billed Retail [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,140,208	1,711,426	1,445,851
System Energy [Member] | Electricity [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 658,812	$ 570,848	$ 495,458