Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,395,196		$ 2,822,070		$ 6,273,122	$ 5,666,907
Other Nonoperating Income (Expense)	35,578		(62,844)		43,182	(123,773)
Income taxes (benefits)	359,643		18,416		293,145	(47,526)
Consolidated net income	164,011	$ 279,593	(1,394)	$ 339,145	443,604	337,750
Competitive Businesses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	88,933		148,697		238,722	396,947
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Consolidated net income	(8,453)		(21,134)		(20,293)	(13,654)
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)		(97)	(97)
INCOME (LOSS) BEFORE INCOME TAXES	(48)		264		(97)	39,582
Income taxes (benefits)	10		(56)		20	(8,313)
Consolidated net income	(38)		208		(77)	31,269
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		312		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)	1,380		(440)		3,402	(82)
Consolidated net income	(2,370)		756		(5,843)	142
Realized Investment Gains (Losses)	(3,750)		1,196		(9,245)	224
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		7,674	10,496
Amortization of loss	(10,979)		(27,534)		(24,904)	(62,063)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(545)		(6,043)		(1,327)	(6,043)
INCOME (LOSS) BEFORE INCOME TAXES	(7,687)		(28,329)		(18,557)	(57,610)
Income taxes (benefits)	1,642		6,231		4,184	12,545
Consolidated net income	(6,045)		(22,098)		(14,373)	(45,065)
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,515,785		1,267,598		2,781,757	2,375,242
Other Nonoperating Income (Expense)	36,986		(36,033)		52,503	(70,671)
Income taxes (benefits)	307,231		(26,171)		276,442	(63,943)
Consolidated net income	316,659	$ 150,860	143,927	$ 166,626	467,519	310,553
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		2,316	2,460
Amortization of loss	(308)		(626)		(627)	(1,305)
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	(178)		(1,400)		(178)	(1,400)
INCOME (LOSS) BEFORE INCOME TAXES	672		(796)		1,511	(245)
Income taxes (benefits)	(181)		208		(407)	64
Consolidated net income	$ 491		$ (588)		$ 1,104	$ (181)