Long - Term Debt (Schedule Of Maturities Of Long-term Debt) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Year One	$ 650,000
Year Two	934,000
Year Three	1,340,792
Year Four	1,065,237
Year Five	1,715,523
Entergy Arkansas [Member]
Year One	0
Year Two	0
Year Three	566,292
Year Four	0
Year Five	290,000
Entergy Louisiana [Member]
Year One	0
Year Two	320,000
Year Three	360,600
Year Four	200,000
Year Five	401,910
Entergy Mississippi [Member]
Year One	150,000
Year Two	0
Year Three	0
Year Four	0
Year Five	250,000
Entergy New Orleans [Member]
Year One	0
Year Two	25,000
Year Three	0
Year Four	0
Year Five	100,000
Entergy Texas [Member]
Year One	500,000
Year Two	0
Year Three	200,000
Year Four	81,237
Year Five	203,613
System Energy [Member]
Year One	0
Year Two	0
Year Three	213,900
Year Four	134,000
Year Five	$ 250,000

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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