Rate And Regulatory Matters (Narrative) (Details) (USD $)	20 Months Ended			1 Months Ended					6 Months Ended		1 Months Ended						1 Months Ended				6 Months Ended		1 Months Ended					3 Months Ended	1 Months Ended			1 Months Ended	12 Months Ended
	May 02, 2003	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Entergy Louisiana [Member]	May 31, 2014 Entergy Louisiana [Member]	Jan. 31, 2014 Entergy Louisiana [Member]	Mar. 31, 2013 Entergy Louisiana [Member]	Jan. 31, 2013 Entergy Louisiana [Member]	Jun. 30, 2014 Entergy Louisiana [Member]	Dec. 31, 2013 Entergy Louisiana [Member]	Aug. 31, 2014 Entergy Louisiana [Member] Subsequent Event [Member]	Jul. 31, 2014 Entergy Louisiana [Member] Subsequent Event [Member]	Jun. 30, 2014 Entergy Mississippi [Member]	May 31, 2014 Entergy Mississippi [Member]	Mar. 31, 2014 Entergy Mississippi [Member]	Dec. 31, 2013 Entergy Mississippi [Member]	Jun. 30, 2014 Entergy Gulf States Louisiana [Member]	May 31, 2014 Entergy Gulf States Louisiana [Member]	Apr. 30, 2014 Entergy Gulf States Louisiana [Member]	Jan. 31, 2013 Entergy Gulf States Louisiana [Member]	Jun. 30, 2014 Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Entergy Gulf States Louisiana [Member]	Aug. 31, 2014 Entergy Gulf States Louisiana [Member] Subsequent Event [Member]	Aug. 31, 2012 Entergy New Orleans [Member]	Apr. 30, 2014 Entergy Texas [Member]	Jan. 31, 2014 Entergy Texas [Member]	Sep. 30, 2013 Entergy Texas [Member]	Mar. 31, 2014 Entergy Texas [Member]	May 31, 2014 Entergy Arkansas [Member]	Jun. 30, 2014 Entergy Arkansas [Member]	Dec. 31, 2013 Entergy Arkansas [Member]	Aug. 31, 2014 Entergy Holdings Company LLC [Member] Subsequent Event [Member]	Sep. 30, 2013 Natural Gas Processing Plant [Member] Entergy Gulf States Louisiana [Member]
Commitments and Contingencies [Abstract]
Public Utilities Earned Return On Common Equity				9.95%		8.13%	10.40%						10.59%												9.80%	9.20%	10.40%						5.47%
Rate Increase				$ 9,300,000	$ 10,000,000	$ 5,560,000	$ 13,000,000												$ 1,500,000						$ 18,500,000		$ 38,600,000	$ 18,500,000					$ 1,500,000
Rate Increase Through MISO Recovery Rider				853,000
Public Utilities, Requested Rate Increase (Decrease), Amount													49,000,000
Requested Rate Increase Including New Depreciation Rates													30,000,000
Rate Increase Period						3 years	3 years
Rate Case Filing Request To Reconcile Fuel and Purchased Power Costs and Fuel Revenues																											900,000,000
Rate Case Filing Request Special Circumstances Fuel Cost Recovery Of Purchased Power Costs																											22,000,000
Storm restoration costs incurred - Hurricane Isaac									247,700,000												73,800,000			47,300,000
Rate reduction																										300,000
Period of prohibited refunds	20 months
Storm reserve withdrawal								187,000,000												65,000,000				17,400,000
Storm restoration costs deemed prudently incurred - Hurricane Isaac									224,300,000												66,500,000
Requested Replenishment of Storm Escrow Accounts Hurricane Issac				200,000,000													90,000,000
LCDA issuance of bonds under Louisiana Act 55 financing											243.85												71,000,000
Bond proceeds loaned by LCDA to LURC under Louisiana Act 55 financing											240,000,000												69,000,000
Amount transfered to restricted escrow account as storm damage reserve											13,000,000												3,000,000
Bond proceeds transfered to company under Louisiana Act 55 financing											227,000,000												66,000,000
Bond proceeds used to acquire preferred units											227,000,000												66,000,000
Class preferred non voting membership interest units acquired in wholly owned Subsidiary											2,272,725.89												662,426.80
Annual distribution rate											7.50%												7.50%
Liquidation price per unit											100												100
Net worth required under terms of membership interest																																1,750,000,000
Redetermination Of Production Cost Allocation Rider Unrecovered Retail Balance																													3,000,000
System Agreement Bandwidth Remedy Payments																													68,000,000
Deferred Fuel Cost		311,018,000	116,379,000	44,889,000					44,889,000	0			54,594,000		60,400,000	38,057,000	25,957,000				25,957,000	9,625,000								185,579,000	68,696,000
Natural Gas Cost														4.50
Rate increase value to reflect special formula rate plan rate implementation adjustment					39,000,000													3,800,000
Recommended potential project and replacement power cost disallowances												71,000,000
Intervenor recommended disallowance of incremental project costs												$ 141,000,000