Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Securitization property	$ 455,148	$ 485,031
Securitization bonds	$ 520,253	$ 544,921
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	73,953,521	74,235,135
Entergy Arkansas [Member]
Securitization property	$ 24,682	$ 28,583
Securitization bonds	$ 34,739	$ 34,662
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	$ 66,296	$ 71,367
Securitization bonds	$ 77,801	$ 77,736
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	$ 69,199	$ 72,095
Securitization bonds	74,480	74,419
Entergy Texas [Member]
Securitization property	295,062	313,123
Securitization bonds	$ 333,233	$ 358,104
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