Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 362,422	$ 76,536
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	3,729	3,668
Other Comprehensive Income (Loss), Net of Tax, Total	(3,729)	(3,668)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total	358,693	72,868
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests	1,662	1,255
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	357,031	71,613
Entergy Louisiana [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	254,197	182,723
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	971	2,024
Other Comprehensive Income (Loss), Net of Tax, Total	(971)	(2,024)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total	253,226	180,699
Net Income (Loss) Attributable to Noncontrolling Interest	752	795
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	252,474	179,904
Entergy Arkansas [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	86,523	(32,280)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net Income (Loss) Attributable to Noncontrolling Interest	(1,191)	(1,818)
System Energy [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 23,389	$ 31,118