Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Issuance Of Commercial Paper To Finance Acquisition And Ownership Of Nuclear Fuel) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Entergy Arkansas VIE [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Jun. 30, 2025
Entergy Arkansas VIE [Member] | Credit Facility of Eighty Million
Line of Credit Facility [Line Items]
Amount of Facility	$ 80.0
Weighted Average Interest Rate on Borrowings	2.62%
Amount Drawn/ Outstanding	$ 0.0
System Energy VIE [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Jun. 30, 2025
System Energy VIE [Member] | Credit Facility of One Hundred and Twenty Million
Line of Credit Facility [Line Items]
Amount of Facility	$ 120.0
Weighted Average Interest Rate on Borrowings	2.77%
Amount Drawn/ Outstanding	$ 72.6
Entergy Louisiana Waterford VIE [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Jun. 30, 2025
Entergy Louisiana Waterford VIE [Member] | Credit Facility of One Hundred and Five Million
Line of Credit Facility [Line Items]
Amount of Facility	$ 105.0
Weighted Average Interest Rate on Borrowings	2.74%
Amount Drawn/ Outstanding	$ 60.8
Entergy Louisiana River Bend VIE [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Jun. 30, 2025
Entergy Louisiana River Bend VIE [Member] | Credit Facility of One Hundred and Five Million
Line of Credit Facility [Line Items]
Amount of Facility	$ 105.0
Weighted Average Interest Rate on Borrowings	2.17%
Amount Drawn/ Outstanding	$ 13.1
Entergy Mississippi [Member] | Credit Facility Of Ten Million [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Apr. 30, 2023
Entergy Mississippi [Member] | Credit Facility Of Forty Five Million
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Apr. 30, 2023
Entergy Mississippi [Member] | Credit Facility Of Forty Million
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Apr. 30, 2023
Entergy Mississippi [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Jul. 31, 2024