Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Securitization property	$ 119,238	$ 239,219
Securitization bonds	$ 174,635	$ 297,981
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	270,035,180	270,035,180
Treasury stock, shares	69,790,346	70,886,400
Entergy Arkansas [Member]
Securitization property	$ 0	$ 1,706
Securitization bonds	0	6,772
Entergy Louisiana [Member]
Securitization property	5,088	27,596
Securitization bonds	10,278	33,220
Entergy New Orleans [Member]
Securitization property	35,559	49,542
Long-term Transition Bond	41,291	52,641
Entergy Texas [Member]
Securitization property	78,590	160,375
Securitization bonds	$ 123,066	$ 205,349
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