Common Equity (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 16,800	$ (236,905)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(28,975)	(31,676)
Other Comprehensive Income (Loss), Net of Tax, Total	(45,775)	205,229	$ 29,294
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,006)	42,769	(162,460)
Entergy Louisiana [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	6,819	8,093
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(12,923)	6,953
Other Comprehensive Income (Loss), Net of Tax, Total	(19,742)	(1,140)	(572)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 33,916	$ 53,658	$ 54,798