Long - Term Debt (Schedule Of Senior Secured Transition Bonds) (Details) (USD $) In Thousands, unless otherwise specified									3 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Entergy Texas [Member]	Dec. 31, 2011 Entergy Texas [Member]	Dec. 31, 2012 Hurricane Rita [Member] Entergy Texas [Member]	Jun. 30, 2007 Hurricane Rita [Member] Entergy Texas [Member]	Dec. 31, 2012 Hurricane Ike And Hurricane Gustav [Member] Entergy Texas [Member]	Nov. 30, 2009 Hurricane Ike And Hurricane Gustav [Member] Entergy Texas [Member]	Mar. 31, 2012 Tranche A-1 (2.12%) Due February 2016 [Member] Hurricane Ike And Hurricane Gustav [Member] Entergy Texas [Member]	Dec. 31, 2012 Tranche A-1 (2.12%) Due February 2016 [Member] Hurricane Ike And Hurricane Gustav [Member] Entergy Texas [Member]	Dec. 31, 2012 Tranche A-1 (5.51%) Due October 2013 [Member] Hurricane Rita [Member] Entergy Texas [Member]	Dec. 31, 2012 Tranche A-2 (3.65%) Due August 2019 [Member] Hurricane Ike And Hurricane Gustav [Member] Entergy Texas [Member]	Dec. 31, 2012 Tranche A-2 (5.79%) Due October 2018 [Member] Hurricane Rita [Member] Entergy Texas [Member]	Dec. 31, 2012 Tranche A-3 (5.93%) Due June 2022 [Member] Hurricane Rita [Member] Entergy Texas [Member]	Dec. 31, 2012 Tranche A-3 (4.38%) Due November 2023 [Member] Hurricane Ike And Hurricane Gustav [Member] Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 973,480	$ 1,070,556	$ 690,380	$ 749,673	$ 329,500	$ 329,500	$ 545,900	$ 545,900		$ 182,500	$ 93,500	$ 144,800	$ 121,600	$ 114,400	$ 218,600
Coupon rate of senior secured transition bonds									2.12%		5.51%	3.65%	5.79%	5.93%	4.38%