Asset Retirement Obligations (Schedule of Regulatory Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	$ 5,255,509	$ 5,669,404
Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	1,107,600	1,010,700
Entergy Arkansas [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	1,700,110	1,885,361
Entergy Arkansas [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	337,900	319,700
Entergy Louisiana [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	1,637,967	1,648,852
Entergy Louisiana [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	323,200	262,300
Entergy Mississippi [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	525,847	579,076
Entergy Mississippi [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	184,800	188,000
Entergy New Orleans [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	133,261	182,367
Entergy New Orleans [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	62,500	61,100
Entergy Texas [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	549,708	596,606
Entergy Texas [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	102,300	77,500
System Energy [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	426,494	446,360
System Energy [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	$ 96,900	$ 102,100