Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Securitization property	$ 485,031	$ 600,996
Securitization bonds	$ 544,921	$ 661,175
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	254,752,788	254,752,788
Treasury stock, shares	75,235,135	75,623,363
Entergy Arkansas [Member]
Securitization property	$ 28,583	$ 41,164
Securitization bonds	$ 34,662	$ 48,139
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	325,000,000	325,000,000
Common stock, shares issued	46,980,196	46,980,196
Common stock, shares outstanding	46,980,196	46,980,196
Entergy Louisiana [Member]
Securitization property	$ 71,367	$ 92,951
Securitization bonds	$ 77,736	$ 99,217
Entergy Mississippi [Member]
Common stock, shares authorized	12,000,000	12,000,000
Common stock, shares issued	8,666,357	8,666,357
Common stock, shares outstanding	8,666,357	8,666,357
Entergy New Orleans [Member]
Securitization property	$ 72,095	$ 82,272
Securitization bonds	74,419	84,776
Entergy Texas [Member]
Securitization property	313,123	384,609
Securitization bonds	$ 358,104	$ 429,043
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	46,525,000	46,525,000
Common stock, shares outstanding	46,525,000	46,525,000
System Energy [Member]
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares issued	789,350	789,350
Common stock, shares outstanding	789,350	789,350