Transactions With Affiliates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Investment Income, Net	$ 162,726	$ (75,581)	$ 430,466
Costs and Expenses	9,529,437	11,713,462	9,897,270
Revenue from Contract with Customer, Excluding Assessed Tax	12,147,412	13,764,237	11,742,896
Entergy Arkansas [Member]
Investment Income, Net	25,024	19,554	76,953
Costs and Expenses	2,191,189	2,165,546	1,901,152
Revenue from Contract with Customer, Excluding Assessed Tax	2,646,396	2,673,194	2,338,590
Entergy Arkansas [Member] | Affiliated Entity [Member]
Investment Income, Net	700	100	0
Costs and Expenses	585,800	617,400	559,700
Revenue from Contract with Customer, Excluding Assessed Tax	125,200	127,500	109,800
Entergy Louisiana [Member]
Investment Income, Net	90,316	(69,144)	154,606
Costs and Expenses	3,984,619	5,436,579	4,141,668
Revenue from Contract with Customer, Excluding Assessed Tax	5,147,770	6,338,768	5,068,448
Entergy Louisiana [Member] | Affiliated Entity [Member]
Investment Income, Net	303,200	186,100	127,600
Costs and Expenses	719,800	770,200	755,200
Revenue from Contract with Customer, Excluding Assessed Tax	317,600	354,000	289,900
Entergy Mississippi [Member]
Investment Income, Net	2,275	508	53
Costs and Expenses	1,467,418	1,311,957	1,121,844
Revenue from Contract with Customer, Excluding Assessed Tax	1,802,533	1,624,234	1,406,346
Entergy Mississippi [Member] | Affiliated Entity [Member]
Investment Income, Net	200	100	0
Costs and Expenses	345,200	356,100	299,800
Revenue from Contract with Customer, Excluding Assessed Tax	1,000	1,000	1,400
Entergy New Orleans [Member]
Investment Income, Net	7,154	742	48
Costs and Expenses	772,069	876,207	704,189
Revenue from Contract with Customer, Excluding Assessed Tax	843,933	997,333	768,852
Entergy New Orleans [Member] | Affiliated Entity [Member]
Investment Income, Net	1,000	100	0
Costs and Expenses	302,500	341,700	287,800
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Entergy Texas [Member]
Investment Income, Net	11,116	4,141	837
Costs and Expenses	1,598,906	1,855,146	1,575,804
Revenue from Contract with Customer, Excluding Assessed Tax	2,028,586	2,288,905	1,902,511
Entergy Texas [Member] | Affiliated Entity [Member]
Investment Income, Net	1,800	300	0
Costs and Expenses	316,800	321,400	275,000
Revenue from Contract with Customer, Excluding Assessed Tax	700	18,900	64,300
System Energy [Member]
Investment Income, Net	13,131	5,096	82,744
Costs and Expenses	410,698	985,969	498,606
System Energy [Member] | Affiliated Entity [Member]
Investment Income, Net	600	300	0
Costs and Expenses	179,000	215,000	190,800
Revenue from Contract with Customer, Excluding Assessed Tax	$ 588,400	$ 658,800	$ 545,600