Summary Of Significant Accounting Policies (Schedule Of Depreciation Rates On Average Depreciable Property) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Entergy Arkansas [Member]
Depreciation Rate On Average Depreciable Property	2.70%	2.70%	2.70%
Entergy Louisiana [Member]
Depreciation Rate On Average Depreciable Property	2.60%	2.40%	2.40%
Entergy Mississippi [Member]
Depreciation Rate On Average Depreciable Property	3.60%	3.60%	3.60%
Entergy New Orleans [Member]
Depreciation Rate On Average Depreciable Property	3.30%	3.20%	3.20%
Entergy Texas [Member]
Depreciation Rate On Average Depreciable Property	4.00%	3.10%	3.20%
System Energy [Member]
Depreciation Rate On Average Depreciable Property	1.60%	2.00%	1.90%