Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended				5 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	May 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024	Jun. 30, 2024	Apr. 30, 2024
Regulatory Liability, Noncurrent	$ 3,684,331	$ 3,684,331		$ 3,116,926			$ 3,684,331
Increase (Decrease) in Regulatory Liabilities							566,451	$ 204,817
Income Taxes Paid	8,000
Reduction of income tax expense from the reversal of provisions for uncertain tax positions	9,000
Income Tax Expense (Benefit)	9,000	215,475			$ 226,997		270,103	282,818
Entergy New Orleans [Member]
Regulatory Liability, Noncurrent	262,063	262,063		90,434			262,063
Increase (Decrease) in Regulatory Liabilities							169,542	17,878
Income Tax Expense (Benefit)		14,438			16,347		2,597	26,889
Entergy Arkansas [Member]
Regulatory Liability, Noncurrent	803,934	803,934		759,181			803,934
Increase (Decrease) in Regulatory Liabilities							70,199	68,475
State Effective Income Tax Rate, Percent						4.80%
Regulatory Liability For Income Taxes - Current and Non Current										$ 31,000
Reduction of income tax expense from the reversal of provisions for uncertain tax positions	$ 18,000
Income Tax Expense (Benefit)		$ 35,862			$ 30,307		$ 57,308	$ 60,681
Entergy Arkansas [Member] | Subsequent Event [Member]
State Effective Income Tax Rate, Percent									4.30%
Credits expected to be shared with customers from resolution of the 2016-2018 IRS audit [Member] | Entergy New Orleans [Member]
Regulatory Liability, Noncurrent			$ 138,000	60,000							$ 138,000
Regulatory charge, net of tax			57,000	$ 44,000
Increase (Decrease) in Regulatory Liabilities			$ 78,000