Equity (Schedule of Accumulated Other Comprehensive Income (Loss)) (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	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 30,355	$ 34,438		$ 76,185	$ 80,361		$ 30,355	$ 76,185	$ 42,769	$ (162,460)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(4,083)			(4,176)			(12,414)	238,645
Other Comprehensive Income (Loss), Net of Tax	(4,083)	(4,602)	$ (3,729)	(4,176)	246,489	$ (3,668)	(12,414)	238,645
Entergy Louisiana [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	48,737	50,555		48,727	50,751		48,737	48,727	$ 53,658	$ 54,798
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,818)			(2,024)			(4,921)	(6,071)
Other Comprehensive Income (Loss), Net of Tax	$ (1,818)	$ (2,132)	$ (971)	$ (2,024)	$ (2,023)	$ (2,024)	$ (4,921)	$ (6,071)