Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Credit Facilities) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Line of credit facility, maximum borrowing capacity	$ 3,500,000,000
Amount Drawn/ Outstanding	255,000,000
Issuance of letters of credit, percentage of total borrowing capacity	50.00%
Entergy Arkansas [Member] | Credit Facility Of Twenty Million [Member]
Expiration Date	Apr. 01, 2014
Line of credit facility, maximum borrowing capacity	20,000,000
Interest Rate	1.75%
Amount Drawn/ Outstanding	0
Entergy Arkansas [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Expiration Date	Mar. 01, 2018
Line of credit facility, maximum borrowing capacity	150,000,000
Interest Rate	1.67%
Amount Drawn/ Outstanding	0
Issuance of letters of credit, percentage of total borrowing capacity	50.00%
Letters of Credit Outstanding, Amount	200,000
Entergy Gulf States Louisiana [Member]
Expiration Date	Mar. 01, 2018
Line of credit facility, maximum borrowing capacity	150,000,000
Interest Rate	1.67%
Amount Drawn/ Outstanding	0
Issuance of letters of credit, percentage of total borrowing capacity	50.00%
Letters of Credit Outstanding, Amount	15,200,000
Entergy Louisiana [Member]
Expiration Date	Mar. 01, 2018
Line of credit facility, maximum borrowing capacity	200,000,000
Interest Rate	1.67%
Amount Drawn/ Outstanding	0
Issuance of letters of credit, percentage of total borrowing capacity	50.00%
Letters of Credit Outstanding, Amount	7,000,000
Entergy Mississippi [Member]
Amount Drawn/ Outstanding	21,000,000
Entergy Mississippi [Member] | Credit Facility Of Thirty Five Million [Member]
Expiration Date	May 01, 2014
Line of credit facility, maximum borrowing capacity	35,000,000
Interest Rate	1.92%
Amount Drawn/ Outstanding	0
Entergy Mississippi [Member] | Credit Facility Of Twenty Million [Member]
Expiration Date	May 01, 2014
Line of credit facility, maximum borrowing capacity	20,000,000
Interest Rate	1.92%
Amount Drawn/ Outstanding	0
Entergy Mississippi [Member] | Credit Facility Of Ten Million [Member]
Expiration Date	May 01, 2014
Line of credit facility, maximum borrowing capacity	37,500,000
Interest Rate	1.92%
Amount Drawn/ Outstanding	0
Entergy Texas [Member]
Expiration Date	Mar. 01, 2018
Line of credit facility, maximum borrowing capacity	150,000,000
Interest Rate	1.92%
Amount Drawn/ Outstanding	0
Issuance of letters of credit, percentage of total borrowing capacity	50.00%
Letters of Credit Outstanding, Amount	25,000,000
Entergy New Orleans [Member]
Expiration Date	Nov. 01, 2014
Line of credit facility, maximum borrowing capacity	25,000,000
Interest Rate	1.64%
Amount Drawn/ Outstanding	0
Consolidated debt ratio	65.00%
Letters of Credit Outstanding, Amount	$ 8,500,000
Maximum [Member]
Consolidated debt ratio	65.00%
Maximum [Member] | Entergy Arkansas [Member] | Credit Facility Of Twenty Million [Member]
Consolidated debt ratio	65.00%
Maximum [Member] | Entergy Arkansas [Member] | Credit Facility Of One Hundred And Fifty Million [Member]
Consolidated debt ratio	65.00%
Maximum [Member] | Entergy Gulf States Louisiana [Member]
Consolidated debt ratio	65.00%
Maximum [Member] | Entergy Louisiana [Member]
Consolidated debt ratio	65.00%
Maximum [Member] | Entergy Mississippi [Member]
Consolidated debt ratio	65.00%
Maximum [Member] | Entergy Texas [Member]
Consolidated debt ratio	65.00%