Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,981,059	$ 2,877,925
Other Nonoperating Income (Expense)	(54,452)	7,603
Income taxes (benefits)	78,975	(66,497)
Consolidated net income	312,299	279,593
Competitive Businesses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	33,067	149,788
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Consolidated net income	(2,027)	(11,839)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	0	(48)
INCOME (LOSS) BEFORE INCOME TAXES	0	(48)
Income taxes (benefits)	0	10
Consolidated net income	0	(38)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income taxes (benefits)	0	2,022
Consolidated net income	0	(3,473)
Realized Investment Gains (Losses)	0	(5,495)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior-service credit	3,397	3,837
Amortization of loss	1,661	(13,925)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(7,816)	(782)
INCOME (LOSS) BEFORE INCOME TAXES	(2,758)	(10,870)
Income taxes (benefits)	731	2,542
Consolidated net income	(2,027)	(8,328)
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,345,208	1,265,972
Other Nonoperating Income (Expense)	(48,085)	15,517
Income taxes (benefits)	110,829	(30,789)
Consolidated net income	244,024	150,860
Entergy Louisiana [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior-service credit	951	1,158
Amortization of loss	1,565	(319)
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	(1,440)	0
INCOME (LOSS) BEFORE INCOME TAXES	1,076	839
Income taxes (benefits)	(290)	(226)
Consolidated net income	$ 786	$ 613