Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Securitized Regulatory Transition Assets, Noncurrent	$ 212,427	$ 216,107
Long-Term Transition Bond, Noncurrent	$ 221,230	$ 221,139
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, No Par Value	$ 0	$ 0
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	998,000,000	998,000,000
Common Stock, Shares, Issued	587,817,564	583,203,774
Treasury Stock, Common, Shares	129,985,494	130,864,409
Deferred Fuel Cost	$ 348,181	$ 54,133
Entergy Texas [Member]
Securitized Regulatory Transition Assets, Noncurrent	212,427	216,107
Long-Term Transition Bond, Noncurrent	$ 221,230	$ 221,139
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
Common Stock, No Par Value	$ 0	$ 0
Deferred Fuel Cost	$ 20,900	$ 0
Entergy New Orleans [Member]
Deferred Fuel Cost	$ 9,438	$ 0
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
Common Stock, No Par Value	$ 0	$ 0