Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,595,522			$ 4,218,615			$ 9,422,607	$ 10,491,737
Other Nonoperating Income (Expense)	(18,018)			(10,462)			(121,014)	32,720
Income taxes (benefits)	(226,997)			(184,112)			(282,818)	109,034
Consolidated net income	669,714	$ 392,014	$ 312,299	555,882	$ 164,011	$ 279,593	1,374,026	999,486
Competitive Businesses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	36,282			62,009			96,630	300,731
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Consolidated net income	2,434			(11,905)			3,699	(32,197)
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)			0	(145)
INCOME (LOSS) BEFORE INCOME TAXES	0			(48)			0	(145)
Income taxes (benefits)	0			10			0	31
Consolidated net income	0			(38)			0	(114)
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	3,402
Consolidated net income	0			0			0	(5,843)
Realized Investment Gains (Losses)							0	(9,245)
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	3,396			3,837			10,191	11,511
Amortization of loss	1,700			(4,870)			4,994	(29,774)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(1,919)			(14,339)			(10,408)	(15,666)
INCOME (LOSS) BEFORE INCOME TAXES	3,177			(15,372)			4,777	(33,929)
Income taxes (benefits)	(743)			3,505			(1,078)	7,689
Consolidated net income	2,434			(11,867)			3,699	(26,240)
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,434,867			2,020,798			3,985,687	4,802,555
Other Nonoperating Income (Expense)	(6,411)			6,835			(97,079)	59,338
Income taxes (benefits)	(103,889)			(71,453)			(61,621)	204,989
Consolidated net income	359,307	$ 263,260	$ 244,024	274,390	$ 316,659	$ 150,860	866,591	741,909
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			2,853	3,474
Amortization of loss	1,574			(222)			4,703	(849)
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	(22)			(1,340)			(1,551)	(1,518)
INCOME (LOSS) BEFORE INCOME TAXES	2,503			(404)			6,005	1,107
Income taxes (benefits)	(674)			109			(1,617)	(298)
Consolidated net income	$ 1,829			$ (295)			$ 4,388	$ 809