Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 4,218,615			$ 3,353,532			$ 10,491,737	$ 9,020,440
Other Nonoperating Income (Expense)	(10,462)			(16,797)			32,720	(140,571)
Income taxes (benefits)	(184,112)			(158,282)			109,034	(205,808)
Consolidated net income	555,882	$ 164,011	$ 279,593	535,583	$ (1,394)	$ 339,145	999,486	873,333
Competitive Businesses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	62,009			162,309			300,731	559,256
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Consolidated net income	(11,905)			(8,887)			(32,197)	(22,540)
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)	(48)			(48)			(145)	(145)
INCOME (LOSS) BEFORE INCOME TAXES	(48)			(48)			(145)	39,534
Income taxes (benefits)	10			10			31	(8,302)
Consolidated net income	(38)			(38)			(114)	31,232
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Competitive Businesses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0			0			0	39,679
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			6			3,402	(76)
Consolidated net income	0			(11)			(5,843)	131
Realized Investment Gains (Losses)	0			(17)			(9,245)	207
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	3,837			5,248			11,511	15,744
Amortization of loss	(4,870)			(13,490)			(29,774)	(75,553)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(14,339)			(3,192)			(15,666)	(9,235)
INCOME (LOSS) BEFORE INCOME TAXES	(15,372)			(11,434)			(33,929)	(69,044)
Income taxes (benefits)	3,505			2,596			7,689	15,141
Consolidated net income	(11,867)			(8,838)			(26,240)	(53,903)
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,020,798			1,420,708			4,802,555	3,795,950
Other Nonoperating Income (Expense)	6,835			(8,924)			59,338	(79,595)
Income taxes (benefits)	(71,453)			(56,536)			204,989	(120,479)
Consolidated net income	274,390	$ 316,659	$ 150,860	224,475	$ 143,927	$ 166,626	741,909	535,028
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	1,158			1,230			3,474	3,690
Amortization of loss	(222)			(519)			(849)	(1,824)
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	(1,340)			(534)			(1,518)	(1,934)
INCOME (LOSS) BEFORE INCOME TAXES	(404)			177			1,107	(68)
Income taxes (benefits)	109			(46)			(298)	18
Consolidated net income	$ (295)			$ 131			$ 809	$ (50)