Equity (Schedule of Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	$ 22,963	$ 14,726
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	(5,894)	2,551
Income Tax Expense (Benefit)	(87,790)	(100,041)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(3,911)	3,729
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	390,805	362,422
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	(3,911)	3,729
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)	946	3,462
Defined Benefit Plan, Amortization of Gain (Loss)	(5,894)	2,551
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	(4,948)	6,013
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	(1,037)	2,284
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(3,911)	3,729
Entergy Louisiana [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	23,015	17,071
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	1,147	1,719
Income Tax Expense (Benefit)	(50,556)	(54,062)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	1,087	971
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	275,900	254,197
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)	309	1,136
Defined Benefit Plan, Amortization of Gain (Loss)	1,147	1,719
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	1,456	2,855
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	369	1,884
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	1,087	971
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 1,087	$ 971