Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Short-Term Borrowings And The Outstanding Short-Term Borrowings) (Details) $ in Millions	Dec. 31, 2023 USD ($)
Entergy Arkansas [Member]
Short-term Debt [Line Items]
Authorized Short Term Borrowings	$ 250
Short Term Borrowing	145
Entergy Louisiana [Member]
Short-term Debt [Line Items]
Authorized Short Term Borrowings	450
Short Term Borrowing	156
Entergy Mississippi [Member]
Short-term Debt [Line Items]
Authorized Short Term Borrowings	200
Short Term Borrowing	74
Entergy New Orleans [Member]
Short-term Debt [Line Items]
Authorized Short Term Borrowings	150
Short Term Borrowing	22
Entergy Texas [Member]
Short-term Debt [Line Items]
Authorized Short Term Borrowings	200
Short Term Borrowing	0
System Energy [Member]
Short-term Debt [Line Items]
Authorized Short Term Borrowings	200
Short Term Borrowing	$ 12