Rate And Regulatory Matters (Fuel And Purchased Power Cost Recovery) (Details) - USD ($) $ in Thousands		Dec. 31, 2015		Dec. 31, 2014
Other Regulatory Assets		$ 4,704,796		$ 4,968,553
Entergy Arkansas [Member]
Deferred fuel costs		57,800	[1]	209,200
Other Regulatory Assets		1,333,773		1,391,276
Deferred fuel cost noncurrent		66,700		65,900
Entergy Louisiana [Member]
Deferred fuel costs	[2]	102,900		107,100
Other Regulatory Assets		1,217,874		1,340,610
Deferred fuel cost noncurrent		168,100		168,100
Entergy Mississippi [Member]
Deferred fuel costs		(107,800)		(2,200)
Other Regulatory Assets		328,681		364,747
Entergy New Orleans [Member]
Deferred fuel costs	[2]	(24,900)		(25,100)
Other Regulatory Assets		265,322		194,851
Deferred fuel cost noncurrent		4,100		4,100
Entergy Texas [Member]
Deferred fuel costs		(25,100)		11,900
Other Regulatory Assets		812,862		922,087
Gas Hedging [Member] | Entergy Louisiana [Member]
Other Regulatory Assets		$ 7,000		$ 15,800

[1] (a)2015 and 2014 include respectively $66.7 million and $65.9 million for Entergy Arkansas of fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.

[2] 2015 and 2014 include $168.1 million for Entergy Louisiana and $4.1 million for Entergy New Orleans of fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.