Equity (Schedule of Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	$ (50,409)			$ (66,932)			$ (79,405)	$ (460,226)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	2,265			2,130			7,367	5,167
Income Tax Expense (Benefit)	(205,307)			(215,475)			(443,747)	(270,103)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	4,083			4,176			12,414	(238,645)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	698,424	$ 471,954	$ 362,422	645,754	$ 51,732	$ 76,536	1,532,800	774,022
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	4,083			4,176			12,414	(238,645)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and other postretirement plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	3,463			3,473			10,387	10,419
Defined Benefit Plan, Amortization of Gain (Loss)	2,265			2,130			7,367	5,167
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(405)			0			(405)	(316,974)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	5,323			5,603			17,349	(301,388)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	1,240			1,427			4,935	(62,743)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	4,083			4,176			12,414	(238,645)
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	(42,636)			(38,689)			(59,362)	(106,510)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	1,406			1,634			4,844	4,900
Income Tax Expense (Benefit)	(83,299)			(102,303)			(209,902)	(161,977)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	1,818			2,024			4,921	6,071
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	342,889	$ 300,180	$ 254,197	349,795	$ 131,114	$ 182,723	897,266	663,632
Entergy Louisiana [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and other postretirement plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	1,136			1,136			3,408	3,408
Defined Benefit Plan, Amortization of Gain (Loss)	1,406			1,634			4,844	4,900
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	2,436			2,770			8,146	8,308
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	618			746			3,225	2,237
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	1,818			2,024			4,921	6,071
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	1,818			2,024			4,921	6,071
Entergy Louisiana [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]
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	$ (106)			$ 0			$ (106)	$ 0