Long - Term Debt (Schedule Of Maturities Of Long-term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Year One	$ 310,566
Year Two	765,821
Year Three	266,801
Year Four	1,336,396
Year Five	1,492,107
Entergy Arkansas [Member]
Year One	0
Year Two	55,000
Year Three	114,700
Year Four	0
Year Five	0
Entergy Gulf States Louisiana [Member]
Year One	31,955
Year Two	0
Year Three	75,000
Year Four	375,000
Year Five	0
Entergy Louisiana [Member]
Year One	0
Year Two	20,000
Year Three	25,000
Year Four	300,000
Year Five	0
Entergy Mississippi [Member]
Year One	0
Year Two	125,000
Year Three	0
Year Four	0
Year Five	150,000
Entergy New Orleans [Member]
Year One	0
Year Two	0
Year Three	0
Year Four	0
Year Five	0
Entergy Texas [Member]
Year One	200,000
Year Two	13,816
Year Three	0
Year Four	74,194
Year Five	644,800
System Energy [Member]
Year One	60,000
Year Two	0
Year Three	50,000
Year Four	85,000
Year Five	$ 0

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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