Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Narrative) (Details)	12 Months Ended
	Dec. 31, 2022 USD ($)
Commercial Paper Program [Member]
Commercial Paper program limit	$ 2,000,000,000
Commercial Paper	$ 827,600,000
Debt, weighted average interest rate	2.09%
Entergy Louisiana Waterford VIE [Member]
Line of credit facility commitment fee as a percentage of undrawn commitment amount	0.10%
Entergy Louisiana River Bend VIE [Member]
Line of credit facility commitment fee as a percentage of undrawn commitment amount	0.10%
System Energy VIE [Member]
Line of credit facility commitment fee as a percentage of undrawn commitment amount	0.10%
Entergy Arkansas VIE [Member]
Line of credit facility commitment fee as a percentage of undrawn commitment amount	0.10%
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Texas [Member]
Amount of total borrowing capacity against which fronting commitments exist	$ 30,000,000
Line of credit facility, maximum borrowing capacity	150,000,000
Amount Drawn/ Outstanding	0
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Arkansas [Member]
Amount of total borrowing capacity against which fronting commitments exist	5,000,000
Line of credit facility, maximum borrowing capacity	150,000,000
Amount Drawn/ Outstanding	0
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Mississippi [Member]
Line of credit facility, maximum borrowing capacity	150,000,000
Amount Drawn/ Outstanding	0
Credit Facility Of Three Hundred and Fifty Million [Member] | Entergy Louisiana [Member]
Amount of total borrowing capacity against which fronting commitments exist	15,000,000
Line of credit facility, maximum borrowing capacity	350,000,000
Amount Drawn/ Outstanding	50,000,000
Credit Facility Of Twenty Five Million [Member] | Entergy Arkansas [Member]
Line of credit facility, maximum borrowing capacity	25,000,000
Amount Drawn/ Outstanding	0
Credit Facility Of Twenty Five Million [Member] | Entergy New Orleans [Member]
Amount of total borrowing capacity against which fronting commitments exist	10,000,000
Line of credit facility, maximum borrowing capacity	25,000,000
Amount Drawn/ Outstanding	$ 0
Credit Facility of Three Point Five Billion
Line of credit facility, commitment fee percentage	0.225%
Amount of total borrowing capacity against which fronting commitments exist	$ 20,000,000
Line of credit facility, maximum borrowing capacity	3,500,000,000
Amount Drawn/ Outstanding	$ 150,000,000
Credit Facility of Three Point Five Billion | Credit Facility [Member]
Debt, weighted average interest rate	2.97%
Credit Facility of One Hundred and Thirty Nine Million | Entergy Nuclear Vermont Yankee [Member]
Line of credit facility, commitment fee percentage	0.20%
Line of credit facility, maximum borrowing capacity	$ 139,000,000
Debt, weighted average interest rate	3.19%
Amount Drawn/ Outstanding	$ 139,000,000
Credit Facility of Eighty Million | Entergy Texas [Member]
Letters of credit posted to cover derivative exposure	2,400,000
Credit Facility of Eighty Million | Entergy Arkansas VIE [Member]
Amount Drawn/ Outstanding	$ 0
Minimum [Member] | Entergy Louisiana [Member]
Line of credit facility, commitment fee percentage	0.075%
Minimum [Member] | Entergy Texas [Member]
Line of credit facility, commitment fee percentage	0.075%
Minimum [Member] | Entergy Arkansas [Member]
Line of credit facility, commitment fee percentage	0.075%
Minimum [Member] | Entergy Mississippi [Member]
Line of credit facility, commitment fee percentage	0.075%
Minimum [Member] | Entergy New Orleans [Member]
Line of credit facility, commitment fee percentage	0.075%
Maximum [Member] | Entergy Louisiana [Member]
Line of credit facility, commitment fee percentage	0.375%
Public Utilities, Approved Debt Capital Structure, Percentage	65.00%
Consolidated debt ratio of lessees total capitalization	70.00%
Maximum [Member] | Entergy Texas [Member]
Line of credit facility, commitment fee percentage	0.375%
Public Utilities, Approved Debt Capital Structure, Percentage	65.00%
Maximum [Member] | System Energy [Member]
Public Utilities, Approved Debt Capital Structure, Percentage	65.00%
Consolidated debt ratio of lessees total capitalization	70.00%
Maximum [Member] | Entergy Arkansas [Member]
Line of credit facility, commitment fee percentage	0.375%
Public Utilities, Approved Debt Capital Structure, Percentage	65.00%
Consolidated debt ratio of lessees total capitalization	70.00%
Maximum [Member] | Entergy Mississippi [Member]
Line of credit facility, commitment fee percentage	0.375%
Public Utilities, Approved Debt Capital Structure, Percentage	65.00%
Maximum [Member] | Entergy New Orleans [Member]
Line of credit facility, commitment fee percentage	0.375%
Public Utilities, Approved Debt Capital Structure, Percentage	65.00%
Maximum [Member] | Credit Facility of Three Point Five Billion
Consolidated debt ratio	65.00%