Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Schedule of Long-Term Debt Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Long-Term Debt, Fair Value	$ 26,113,062	$ 22,489,174
Long-Term Debt	27,880,440	25,107,896
Entergy Arkansas [Member]
Long-Term Debt, Fair Value	4,785,447	4,166,941
Long-Term Debt	5,135,751	4,673,080
Entergy Louisiana [Member]
Long-Term Debt, Fair Value	9,185,690	8,414,512
Long-Term Debt	9,876,127	9,420,689
Entergy Mississippi [Member]
Long-Term Debt, Fair Value	2,215,355	1,969,334
Long-Term Debt	2,426,893	2,229,510
Entergy New Orleans [Member]
Long-Term Debt, Fair Value	712,343	602,716
Long-Term Debt	736,611	677,450
Entergy Texas [Member]
Long-Term Debt, Fair Value	3,356,778	2,936,130
Long-Term Debt	3,561,402	3,225,092
System Energy [Member]
Long-Term Debt, Fair Value	794,618	696,168
Long-Term Debt	$ 809,585	$ 738,459