Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income	$ 535,583	$ 525,699	$ 873,333	$ 1,014,105
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	24	(16,558)	(29,778)	(63,674)
Other comprehensive income (loss)
Cash flow hedges net unrealized gain (loss)	0	4,408	7,935	16,945
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	8,838	17,437	53,903	88,560
Net unrealized investment gains	(2,162)	(2,695)	(46,957)	31,614
Other comprehensive income (loss)	6,700	(1,816)	(22,832)	56,500
Total comprehensive income	542,283	523,883	850,501	1,070,605
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	4,580	4,580	13,739	13,739
Comprehensive Income Attributable to Entergy Corporation	537,703	519,303	836,762	1,056,866
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	2,596	4,697	15,141	24,487
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	(1,259)	(1,513)	(26,867)	18,042
Entergy Louisiana [Member]
Net income	224,475	223,466	535,028	583,321
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(131)	(800)	50	7,722
Other comprehensive income (loss)	(131)	(800)	50	7,722
Total comprehensive income	224,344	222,666	535,078	591,043
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	(46)	(282)	18	2,724
Entergy Arkansas [Member]
Net income	154,891	135,843	304,521	240,608
System Energy [Member]
Net income	$ 27,499	$ 31,064	$ 81,693	$ 88,568