Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Securitized Regulatory Transition Assets, Noncurrent	$ 216,107	$ 234,112
Long-Term Transition Bond, Noncurrent	$ 221,139	$ 239,622
Common Stock, Shares Authorized	998,000,000	998,000,000
Common Stock, Shares, Issued	583,203,774	561,950,696
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Treasury Stock, Common, Shares	130,864,409	132,370,280
Customer advances for construction, current	$ 632,850	$ 151,662
Customer Advances, Noncurrent Liabilities	35,000	0
Entergy Arkansas [Member]
Customer Advances, Noncurrent Liabilities	10,000	0
Entergy Louisiana [Member]
Customer advances for construction, current	543,312	151,662
Entergy Mississippi [Member]
Customer advances for construction, current	89,538	0
Customer Advances, Noncurrent Liabilities	25,000	0
Entergy Texas [Member]
Securitized Regulatory Transition Assets, Noncurrent	216,107	234,112
Long-Term Transition Bond, Noncurrent	$ 221,139	$ 239,622
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
Preferred Stock, Shares Authorized	1,550,000	1,550,000
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
Common Stock, No Par Value	$ 0	$ 0