Revenue (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 3,328,849	$ 2,953,620	$ 6,175,723	$ 5,748,248
Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenues	697,687	608,798	1,311,198	1,230,843
Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,510,063	1,276,124	2,811,610	2,478,564
Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenues	491,875	442,894	915,584	857,750
Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenues	210,000	199,341	391,055	392,302
Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenues	531,641	519,077	973,580	963,568
Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	3,158	11,955	(1,316)	26,962
Revenues	3,274,945	2,906,047	6,032,811	5,612,553
Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	1,147	2,232	2,346	4,804
Revenues	697,687	608,798	1,311,198	1,230,843
Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	1,256	6,464	(5,149)	13,442
Revenues	1,495,504	1,261,444	2,767,450	2,434,237
Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	623	2,453	1,220	4,887
Revenues	491,875	442,894	915,584	857,750
Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	107	1,307	212	2,732
Revenues	183,781	178,664	322,706	335,605
Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue Not from Contract with Customer	30	50	60	(104)
Revenues	531,641	519,077	973,580	963,568
Natural Gas, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	40,778	35,357	112,509	101,024
Revenues	40,778	35,357	112,509	101,024
Natural Gas, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Natural Gas, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	14,559	14,680	44,160	44,327
Revenues	14,559	14,680	44,160	44,327
Natural Gas, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Natural Gas, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	26,219	20,677	68,349	56,697
Revenues	26,219	20,677	68,349	56,697
Natural Gas, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Product and Service, Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	13,126	12,216	30,403	34,671
Residential [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,091,035	1,009,836	2,204,340	2,080,177
Residential [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	212,265	204,822	486,871	480,574
Residential [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	408,293	353,975	786,531	699,003
Residential [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	172,575	163,049	358,883	341,666
Residential [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	73,279	71,842	138,969	139,520
Residential [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	224,623	216,148	433,086	419,414
Commercial [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	771,097	713,282	1,455,104	1,405,133
Commercial [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	141,468	132,950	273,085	274,258
Commercial [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	306,916	265,869	570,116	522,565
Commercial [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	147,052	142,173	282,925	274,491
Commercial [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	58,133	57,360	105,755	110,585
Commercial [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	117,528	114,930	223,223	223,234
Industrial [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	945,901	792,721	1,720,020	1,541,679
Industrial [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	174,555	138,786	323,620	288,193
Industrial [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	570,303	458,420	1,036,010	880,017
Industrial [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	53,629	49,180	100,974	95,607
Industrial [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7,800	7,602	13,454	14,580
Industrial [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	139,614	138,733	245,962	263,282
Governmental [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	70,623	65,861	133,441	131,172
Governmental [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,911	4,433	9,130	9,133
Governmental [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	23,622	21,223	45,290	43,044
Governmental [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	14,544	14,061	28,234	27,390
Governmental [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20,656	19,167	37,185	37,521
Governmental [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	6,890	6,977	13,602	14,084
Billed Retail [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,878,656	2,581,700	5,512,905	5,158,161
Billed Retail [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	533,199	480,991	1,092,706	1,052,158
Billed Retail [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,309,134	1,099,487	2,437,947	2,144,629
Billed Retail [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	387,800	368,463	771,016	739,154
Billed Retail [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	159,868	155,971	295,363	302,206
Billed Retail [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	488,655	476,788	915,873	920,014
Sales for Resale [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	146,457	54,579	198,330	133,583
Sales for Resale [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	84,533	43,842	121,262	82,807
Sales for Resale [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	109,243	80,823	220,791	163,551
Sales for Resale [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	61,713	21,260	89,810	69,193
Sales for Resale [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	10,027	8,575	13,917	21,075
Sales for Resale [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	5,195	3,015	7,590	4,922
Other Electric [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	246,674	257,813	322,892	293,847
Other Electric [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	78,808	81,733	94,884	91,074
Other Electric [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	75,871	74,670	113,861	112,615
Other Electric [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	41,739	50,718	53,538	44,516
Other Electric [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	13,779	12,811	13,214	9,592
Other Electric [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	37,761	39,224	50,057	38,736
Customer [Member] | Electricity, US Regulated [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3,271,787	2,894,092	6,034,127	5,585,591
Customer [Member] | Electricity, US Regulated [Member] | Entergy Arkansas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	696,540	606,566	1,308,852	1,226,039
Customer [Member] | Electricity, US Regulated [Member] | Entergy Louisiana [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,494,248	1,254,980	2,772,599	2,420,795
Customer [Member] | Electricity, US Regulated [Member] | Entergy Mississippi [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	491,252	440,441	914,364	852,863
Customer [Member] | Electricity, US Regulated [Member] | Entergy New Orleans [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	183,674	177,357	322,494	332,873
Customer [Member] | Electricity, US Regulated [Member] | Entergy Texas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 531,611	$ 519,027	$ 973,520	$ 963,672