Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Schedule of Long-Term Debt Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long-Term Debt, Fair Value	$ 23,696,386	$ 22,489,174
Long-Term Debt	26,486,511	25,107,896
Entergy Arkansas [Member]
Long-Term Debt, Fair Value	4,111,424	4,166,941
Long-Term Debt	4,675,636	4,673,080
Entergy Louisiana [Member]
Long-Term Debt, Fair Value	9,552,049	8,414,512
Long-Term Debt	10,602,315	9,420,689
Entergy Mississippi [Member]
Long-Term Debt, Fair Value	2,036,859	1,969,334
Long-Term Debt	2,329,695	2,229,510
Entergy New Orleans [Member]
Long-Term Debt, Fair Value	644,862	602,716
Long-Term Debt	677,554	677,450
Entergy Texas [Member]
Long-Term Debt, Fair Value	2,873,952	2,936,130
Long-Term Debt	3,225,444	3,225,092
System Energy [Member]
Long-Term Debt, Fair Value	797,623	696,168
Long-Term Debt	$ 830,998	$ 738,459