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, 2022	Dec. 31, 2021
Long-term Debt, Fair Value	$ 23,227,270	$ 27,061,171
Long-term Debt, Book Value	25,452,926	25,880,901
Entergy Arkansas [Member]
Long-term Debt, Fair Value	3,805,958	4,176,577
Long-term Debt, Book Value	4,175,929	3,958,862
Entergy Louisiana [Member]
Long-term Debt, Fair Value	9,626,860	11,492,650
Long-term Debt, Book Value	10,369,840	10,914,346
Entergy Mississippi [Member]
Long-term Debt, Fair Value	2,134,560	2,346,230
Long-term Debt, Book Value	2,430,499	2,179,989
Entergy New Orleans [Member]
Long-term Debt, Fair Value	743,715	765,538
Long-term Debt, Book Value	782,815	788,165
Entergy Texas [Member]
Long-term Debt, Fair Value	2,360,498	2,483,995
Long-term Debt, Book Value	2,612,874	2,354,148
System Energy [Member]
Long-term Debt, Fair Value	743,102	743,040
Long-term Debt, Book Value	$ 798,615	$ 741,296