Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 645,754	$ 669,714	$ 774,022	$ 1,374,026
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(4,176)	(2,434)	238,645	(3,699)
Other Comprehensive Income (Loss), Net of Tax, Total	(4,176)	(2,434)	238,645	(3,699)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total	641,578	667,280	1,012,667	1,370,327
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests	814	2,959	4,879	5,092
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	640,764	664,321	1,007,788	1,365,235
Entergy Louisiana [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	349,795	359,307	663,632	866,591
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(2,024)	(1,829)	(6,071)	(4,388)
Other Comprehensive Income (Loss), Net of Tax, Total	(2,024)	(1,829)	(6,071)	(4,388)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total	347,771	357,478	657,561	862,203
Net Income (Loss) Attributable to Noncontrolling Interest	775	810	2,358	2,183
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	346,996	356,668	655,203	860,020
Entergy Arkansas [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	185,770	99,169	248,849	225,513
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net Income (Loss) Attributable to Noncontrolling Interest	(957)	(791)	(3,600)	(3,426)
System Energy [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 26,077	$ 27,697	$ 82,043	$ 81,001