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	Mar. 31, 2023	Dec. 31, 2022
Long-term Debt, Fair Value	$ 24,057,455	$ 22,573,837
Long-term Debt, Book Value	26,723,309	25,932,549
Entergy Arkansas [Member]
Long-term Debt, Fair Value	4,126,440	3,538,930
Long-term Debt, Book Value	4,620,604	4,166,500
Entergy Louisiana [Member]
Long-term Debt, Fair Value	9,718,246	9,444,665
Long-term Debt, Book Value	10,690,832	10,698,922
Entergy Mississippi [Member]
Long-term Debt, Fair Value	2,156,919	1,987,154
Long-term Debt, Book Value	2,431,365	2,331,096
Entergy New Orleans [Member]
Long-term Debt, Fair Value	711,545	707,872
Long-term Debt, Book Value	766,242	775,632
Entergy Texas [Member]
Long-term Debt, Fair Value	2,566,690	2,485,705
Long-term Debt, Book Value	2,896,522	2,895,913
System Energy [Member]
Long-term Debt, Fair Value	979,621	702,473
Long-term Debt, Book Value	$ 1,020,211	$ 777,905