Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Credit Facilities) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Entergy Arkansas [Member] | Credit Facility Of Twenty Five Million [Member]
Line of credit facility, maximum borrowing capacity	$ 25.0
Interest Rate	5.98%
Amount Drawn/ Outstanding	$ 0.0
Letters of Credit Outstanding, Amount	0.0
Entergy Arkansas [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Line of credit facility, maximum borrowing capacity	$ 150.0
Interest Rate	5.55%
Amount Drawn/ Outstanding	$ 0.0
Letters of Credit Outstanding, Amount	0.0
Amount of total borrowing capacity against which fronting commitments exist	$ 5.0
Entergy Arkansas [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Expiration Date	Jun. 30, 2027
Entergy Arkansas [Member] | Credit Facility Of Twenty Five Million [Member]
Expiration Date	Apr. 30, 2023
Entergy Louisiana [Member] | Credit Facility Of Three Hundred and Fifty Million [Member]
Line of credit facility, maximum borrowing capacity	$ 350.0
Interest Rate	7.75%
Amount Drawn/ Outstanding	$ 50.0
Letters of Credit Outstanding, Amount	0.0
Amount of total borrowing capacity against which fronting commitments exist	$ 15.0
Entergy Louisiana [Member] | Credit Facility Of Three Hundred Fifty Million [Member]
Expiration Date	Jun. 30, 2027
Entergy Mississippi [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Line of credit facility, maximum borrowing capacity	$ 150.0
Interest Rate	5.55%
Amount Drawn/ Outstanding	$ 0.0
Letters of Credit Outstanding, Amount	0.0
Entergy Mississippi [Member] | Credit Facility Of Ten Million [Member]
Line of credit facility, maximum borrowing capacity	10.0
Letters of Credit Outstanding, Amount	0.0
Entergy Mississippi [Member] | Credit Facility Of Forty Five Million
Line of credit facility, maximum borrowing capacity	45.0
Letters of Credit Outstanding, Amount	0.0
Entergy Mississippi [Member] | Credit Facility Of Forty Million
Line of credit facility, maximum borrowing capacity	$ 40.0
Interest Rate	5.92%
Amount Drawn/ Outstanding	$ 0.0
Letters of Credit Outstanding, Amount	0.0
Entergy Mississippi [Member] | Credit Facility of Sixty Five Million
Letters of credit posted to cover derivative exposure	$ 0.2
Entergy Mississippi [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Expiration Date	Jul. 31, 2024
Entergy Mississippi [Member] | Credit Facility Of Ten Million [Member]
Expiration Date	Apr. 30, 2023
Entergy Texas [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Line of credit facility, maximum borrowing capacity	$ 150.0
Interest Rate	5.67%
Amount Drawn/ Outstanding	$ 0.0
Letters of Credit Outstanding, Amount	1.1
Amount of total borrowing capacity against which fronting commitments exist	$ 30.0
Entergy Texas [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Expiration Date	Jun. 30, 2027
Entergy New Orleans [Member] | Credit Facility Of Twenty Five Million [Member]
Line of credit facility, maximum borrowing capacity	$ 25.0
Interest Rate	6.01%
Amount Drawn/ Outstanding	$ 0.0
Letters of Credit Outstanding, Amount	0.0
Amount of total borrowing capacity against which fronting commitments exist	$ 10.0
Entergy New Orleans [Member] | Credit Facility Of Twenty Five Million [Member]
Expiration Date	Jun. 30, 2024