Schedule II - Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 35,663	$ 34,311	$ 31,956
Additions Charged to Income or Regulatory Assets	6,926	4,573	2,355
Other Changes Deductions from Provisions	2,694	3,221	0
Balance at End of Period	39,895	35,663	34,311
Entergy Arkansas [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	32,247	30,113	28,343
Additions Charged to Income or Regulatory Assets	2,759	2,881	1,770
Other Changes Deductions from Provisions	780	747	0
Balance at End of Period	34,226	32,247	30,113
Entergy Louisiana [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	1,609	1,874	1,578
Additions Charged to Income or Regulatory Assets	3,464	842	296
Other Changes Deductions from Provisions	864	1,107	0
Balance at End of Period	4,209	1,609	1,874
Entergy Mississippi [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	873	906	910
Additions Charged to Income or Regulatory Assets	247	269	(4)
Other Changes Deductions from Provisions	402	302	0
Balance at End of Period	718	873	906
Entergy New Orleans [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	262	974	446
Additions Charged to Income or Regulatory Assets	217	99	528
Other Changes Deductions from Provisions	211	811	0
Balance at End of Period	268	262	974
Entergy Texas [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	672	443	680
Additions Charged to Income or Regulatory Assets	239	483	(237)
Other Changes Deductions from Provisions	437	254	0
Balance at End of Period	$ 474	$ 672	$ 443