v3.26.1
Consolidated Statement of Cash Flows (Paranthetical) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Increase (Decrease) in Customer advances - non-current $ 135,298 $ 25,000
Payment for Advance for Construction, Financing Activity (436,221) (245,481)
Increase (Decrease) in Customer advances - current 740,977 303,791
Proceeds from (Payment for) Other Financing Activity (259,675) 2,164
Proceeds from Advance for and Contribution in Aid of Construction, Financing Activity 885,867 732,454
Entergy Louisiana [Member]    
Payment for Advance for Construction, Financing Activity (272,221) (117,339)
Increase (Decrease) in Customer advances - current 666,217 200,389
Proceeds from (Payment for) Other Financing Activity (4,304) (4,247)
Proceeds from Advance for and Contribution in Aid of Construction, Financing Activity 470,638 548,476
Entergy Arkansas [Member]    
Increase (Decrease) in Customer advances - non-current 66,800 0
Payment for (Proceeds from) Other Investing Activity 36,977 51
Payment for Advance for Construction, Financing Activity (75,369) (54,838)
Proceeds from (Payment for) Other Financing Activity (2,710) (2,335)
Proceeds from Advance for and Contribution in Aid of Construction, Financing Activity 203,556 39,895
System Energy [Member]    
Proceeds from (Payment for) Other Financing Activity $ (87) $ 0