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	Sep. 30, 2022	Dec. 31, 2021
Long-term Debt, Fair Value	$ 22,567,380	$ 27,061,171
Long-term Debt, Book Value	26,219,979	25,880,901
Entergy Arkansas [Member]
Long-term Debt, Fair Value	3,570,817	4,176,577
Long-term Debt, Book Value	4,164,866	3,958,862
Entergy Louisiana [Member]
Long-term Debt, Fair Value	9,509,010	11,492,650
Long-term Debt, Book Value	10,860,595	10,914,346
Entergy Mississippi [Member]
Long-term Debt, Fair Value	1,998,266	2,346,230
Long-term Debt, Book Value	2,430,783	2,179,989
Entergy New Orleans [Member]
Long-term Debt, Fair Value	709,965	765,538
Long-term Debt, Book Value	783,034	788,165
Entergy Texas [Member]
Long-term Debt, Fair Value	2,445,550	2,483,995
Long-term Debt, Book Value	2,907,947	2,354,148
System Energy [Member]
Long-term Debt, Fair Value	710,771	743,040
Long-term Debt, Book Value	$ 788,961	$ 741,296