Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Book Value And The Fair Value Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Long-term Debt, Fair Value	$ 23,052,902	$ 22,573,837
Long-term Debt, Book Value	26,170,727	25,932,549
Entergy Arkansas [Member]
Long-term Debt, Fair Value	3,872,249	3,538,930
Long-term Debt, Book Value	4,438,803	4,166,500
Entergy Louisiana [Member]
Long-term Debt, Fair Value	9,531,338	9,444,665
Long-term Debt, Book Value	10,687,807	10,698,922
Entergy Mississippi [Member]
Long-term Debt, Fair Value	2,009,172	1,987,154
Long-term Debt, Book Value	2,328,900	2,331,096
Entergy New Orleans [Member]
Long-term Debt, Fair Value	710,894	707,872
Long-term Debt, Book Value	784,810	775,632
Entergy Texas [Member]
Long-term Debt, Fair Value	2,505,893	2,485,705
Long-term Debt, Book Value	2,888,075	2,895,913
System Energy [Member]
Long-term Debt, Fair Value	693,756	702,473
Long-term Debt, Book Value	$ 752,969	$ 777,905