Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 11,879,653	$ 12,147,412	$ 13,764,237
Electricity, US Regulated [Member]
Revenue Not from Contract with Customer	60,075	132,628	116,469
Revenues	11,627,732	11,842,454	13,186,845
Natural Gas, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	178,070	180,490	233,920
Revenues	178,070	180,490	233,920
Product and Service, Other [Member]
Revenues	73,851	124,468	343,472
Residential [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	4,509,553	4,552,804	4,640,039
Commercial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,952,398	2,997,888	3,087,675
Industrial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	3,197,835	3,170,090	3,716,058
Governmental [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	268,222	270,640	286,605
Billed Retail [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	10,928,008	10,991,422	11,730,377
Sales for Resale [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	278,700	366,348	858,743
Other Electric [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	360,949	352,056	481,256
Customer [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	11,567,657	11,709,826	13,070,376
Entergy Arkansas [Member]
Revenues	2,460,181	2,646,396	2,673,194
Entergy Arkansas [Member] \| Electricity, US Regulated [Member]
Revenue Not from Contract with Customer	15,299	18,378	13,767
Revenues	2,460,181	2,646,396	2,673,194
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, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	999,641	996,760	946,719
Entergy Arkansas [Member] \| Commercial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	571,574	584,304	530,512
Entergy Arkansas [Member] \| Industrial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	632,144	635,472	559,147
Entergy Arkansas [Member] \| Governmental [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	18,622	20,409	20,186
Entergy Arkansas [Member] \| Billed Retail [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,221,981	2,236,945	2,056,564
Entergy Arkansas [Member] \| Sales for Resale [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	169,409	269,648	443,685
Entergy Arkansas [Member] \| Other Electric [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	53,492	121,425	159,178
Entergy Arkansas [Member] \| Customer [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2,444,882	2,628,018	2,659,427
Entergy Louisiana [Member]
Revenues	5,144,018	5,147,770	6,338,768
Entergy Louisiana [Member] \| Electricity, US Regulated [Member]
Revenue Not from Contract with Customer	23,825	79,415	65,310
Revenues	5,068,158	5,073,239	6,246,933
Entergy Louisiana [Member] \| Natural Gas, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	75,860	74,531	91,835
Revenues	75,860	74,531	91,835
Entergy Louisiana [Member] \| Residential [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,554,400	1,576,129	1,775,552
Entergy Louisiana [Member] \| Commercial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,100,309	1,104,509	1,274,665
Entergy Louisiana [Member] \| Industrial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,781,615	1,720,298	2,275,978
Entergy Louisiana [Member] \| Governmental [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	85,537	83,736	94,910
Entergy Louisiana [Member] \| Billed Retail [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	4,521,861	4,484,672	5,421,105
Entergy Louisiana [Member] \| Sales for Resale [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	335,375	357,900	555,640
Entergy Louisiana [Member] \| Other Electric [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	187,097	151,252	204,878
Entergy Louisiana [Member] \| Customer [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	5,044,333	4,993,824	6,181,623
Entergy Mississippi [Member]
Revenues	1,764,593	1,802,533	1,624,234
Entergy Mississippi [Member] \| Electricity, US Regulated [Member]
Revenue Not from Contract with Customer	9,876	17,559	9,231
Revenues	1,764,593	1,802,533	1,624,234
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, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	724,601	748,428	651,455
Entergy Mississippi [Member] \| Commercial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	577,484	604,343	508,996
Entergy Mississippi [Member] \| Industrial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	195,194	217,916	182,270
Entergy Mississippi [Member] \| Governmental [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	56,420	60,477	52,861
Entergy Mississippi [Member] \| Billed Retail [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,553,699	1,631,164	1,395,582
Entergy Mississippi [Member] \| Sales for Resale [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	128,781	104,058	167,867
Entergy Mississippi [Member] \| Other Electric [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	72,237	49,752	51,554
Entergy Mississippi [Member] \| Customer [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,754,717	1,784,974	1,615,003
Entergy New Orleans [Member]
Revenues	810,564	843,933	997,333
Entergy New Orleans [Member] \| Electricity, US Regulated [Member]
Revenue Not from Contract with Customer	6,244	14,242	3,842
Revenues	708,354	737,974	855,248
Entergy New Orleans [Member] \| Natural Gas, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	102,210	105,959	142,085
Revenues	102,210	105,959	142,085
Entergy New Orleans [Member] \| Residential [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	308,757	317,188	335,471
Entergy New Orleans [Member] \| Commercial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	229,648	235,193	256,963
Entergy New Orleans [Member] \| Industrial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	29,821	31,831	36,970
Entergy New Orleans [Member] \| Governmental [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	79,060	77,152	87,514
Entergy New Orleans [Member] \| Billed Retail [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	647,286	661,364	716,918
Entergy New Orleans [Member] \| Sales for Resale [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	48,042	63,360	120,851
Entergy New Orleans [Member] \| Other Electric [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6,782	(992)	13,637
Entergy New Orleans [Member] \| Customer [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	702,110	723,732	851,406
Entergy Texas [Member]
Revenues	2,050,150	2,028,586	2,288,905
Entergy Texas [Member] \| Electricity, US Regulated [Member]
Revenue Not from Contract with Customer	3,085	4,824	24,536
Revenues	2,050,150	2,028,586	2,288,905
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, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	922,154	914,299	930,842
Entergy Texas [Member] \| Commercial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	473,383	469,539	516,539
Entergy Texas [Member] \| Industrial [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	559,061	564,573	661,693
Entergy Texas [Member] \| Governmental [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	28,583	28,866	31,134
Entergy Texas [Member] \| Billed Retail [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1,983,181	1,977,277	2,140,208
Entergy Texas [Member] \| Sales for Resale [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	17,174	10,497	66,782
Entergy Texas [Member] \| Other Electric [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	46,710	35,988	57,379
Entergy Texas [Member] \| Customer [Member] \| Electricity, US Regulated [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,047,065	$ 2,023,762	$ 2,264,369