Common Equity Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Miscellaneous - net	$ (77,629)	$ (201,778)	$ (210,633)
Investment Income, Net	(75,581)	430,466	392,818
Income Tax Expense (Benefit)	(38,978)	191,374	(121,506)
Consolidated net income	1,097,138	1,118,719	1,406,653
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Consolidated net income	(39,919)	(32,919)
Cash flow hedges net unrealized gain (loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications before taxes	(161)	39,485
Income Tax Expense (Benefit)	(34)	8,292
Consolidated net income	(127)	31,193
Pension and other postretirement liabilities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Periodic Pension And Other Postretirement Benefit Costs [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications before taxes	(43,843)	(84,270)
Amortization of prior service cost/(credit)	15,337	20,947
Amortization of net loss	(33,859)	(88,838)
Settlement loss	(25,321)	(16,379)
Income Tax Expense (Benefit)	(9,894)	(18,712)
Consolidated net income	(33,949)	(65,558)
Net unrealized investment gains [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment Income, Net	(9,245)	2,289
Income Tax Expense (Benefit)	(3,402)	843
Consolidated net income	(5,843)	1,446
Power Contract [Member] | Cash flow hedges net unrealized gain (loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	0	39,679
Interest Rate Swap [Member] | Cash flow hedges net unrealized gain (loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Miscellaneous - net	(161)	(194)
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Miscellaneous - net	9,824	(125,886)	(116,366)
Total reclassifications before taxes	693,017	774,393	700,028
Investment Income, Net	(69,144)	154,606	98,033
Income Tax Expense (Benefit)	(162,853)	120,409	(382,324)
Consolidated net income	855,870	653,984	$ 1,082,352
Entergy Louisiana [Member] | Pension and other postretirement liabilities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Periodic Pension And Other Postretirement Benefit Costs [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
-25550000	4,630	4,920
Total reclassifications before taxes	1,361	114
Defined Benefit Plan, Amortization of Gain (Loss)	(927)	(2,322)
Settlement loss	(2,342)	(2,484)
Income Tax Expense (Benefit)	366	(19)
Consolidated net income	$ 995	$ 133