Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Notes Payable By Variable Interest Entities) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014 Entergy Arkansas [Member]	Sep. 30, 2014 Five Point Six Nine Percent Series I Notes Due July Two Thousand Fourteen [Member] Entergy Arkansas VIE [Member]	Jul. 31, 2014 Five Point Six Nine Percent Series I Notes Due July Two Thousand Fourteen [Member] Entergy Arkansas [Member]	Sep. 30, 2014 Three Point Two Three Percent Series J Notes Due July Two Thousand Sixteen [Member] Entergy Arkansas VIE [Member]	Sep. 30, 2014 Two Point Six Two Percent Series K Notes Due December Two Thousand Seventeen [Member] Entergy Arkansas VIE [Member]	Sep. 30, 2014 Three Point Six Five Percent Series L Notes Due July Two Thousand Twenty One [Member] Entergy Arkansas VIE [Member]	Jul. 31, 2014 Three Point Six Five Percent Series L Notes Due July Two Thousand Twenty One [Member] Entergy Arkansas [Member]	Sep. 30, 2014 Three Point Two Five Percent Series Q Due July Two Thousand Seventeen [Member] Entergy Gulf States Louisiana VIE [Member]	Sep. 30, 2014 Three Point Three Eight Percent Series R Notes Due August Two Thousand Twenty [Member] Entergy Gulf States Louisiana VIE [Member]	Sep. 30, 2014 Five Point Six Nine Percent Series E Notes Due July Two Thousand Fourteen [Member] Entergy Louisiana VIE [Member]	Sep. 30, 2014 Three Point Three Percent Series F Note Due March Two Thousand Sixteen [Member] Entergy Louisiana VIE [Member]	Sep. 30, 2014 Three Point Two Five Percent Series G Due July Two Thousand Seventeen [Member] Entergy Louisiana VIE [Member]	Sep. 30, 2014 Three Point Nine Two Percent Series H Dues February Two Thousand Twenty One [Member] Entergy Louisiana VIE [Member]	Sep. 30, 2014 Five Point Three Three Percent Series G Notes Due April Two Thousand Fifteen [Member] System Energy VIE [Member]	Sep. 30, 2014 Four Point Zero Two Percent Series H Notes Due February Two Thousand Seventeen [Member] System Energy VIE [Member]	Sep. 30, 2014 Three Point Seven Eight Percent Series I Notes Due October Two Thousand Eighteen [Member] System Energy VIE [Member]
Notes payable by variable interest entities
Stated interest rate (percentage)		5.69%	5.69%	3.23%	2.62%		3.65%	3.25%	3.38%	5.69%	3.30%	3.25%	3.92%	5.33%	4.02%	3.78%
Amount				$ 55,000,000	$ 60,000,000	$ 90,000,000		$ 75,000,000	$ 70,000,000		$ 20,000,000	$ 25,000,000	$ 40,000,000	$ 60,000,000	$ 50,000,000	$ 85,000,000
Consolidated Debt Ratio Of Capitalization	70.00%