Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Schedule of Long-Term Debt Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Long-Term Debt, Fair Value	$ 27,487,432	$ 25,181,802
Long-Term Debt	29,929,838	27,991,595
Entergy Arkansas [Member]
Long-Term Debt, Fair Value	4,883,114	4,546,643
Long-Term Debt	5,438,033	5,122,494
Entergy Louisiana [Member]
Long-Term Debt, Fair Value	9,410,962	8,751,266
Long-Term Debt	10,399,823	9,866,453
Entergy Mississippi [Member]
Long-Term Debt, Fair Value	2,720,374	2,116,246
Long-Term Debt	3,020,687	2,427,073
Entergy New Orleans [Member]
Long-Term Debt, Fair Value	697,241	697,466
Long-Term Debt	737,560	735,467
Entergy Texas [Member]
Long-Term Debt, Fair Value	3,729,255	3,176,230
Long-Term Debt	4,038,417	3,552,443
System Energy [Member]
Long-Term Debt, Fair Value	1,101,434	1,063,946
Long-Term Debt	$ 1,094,396	$ 1,089,736