v3.25.2
Asset Retirement Obligation (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Jun. 30, 2025
Unsecured Debt [Member] | Recourse    
Property, Plant and Equipment [Line Items]    
Issued senior notes   $ 500
Issued senior notes   $ 500
AES Andes | Andes Junior Notes due 2055 | Nonrecourse [Member]    
Property, Plant and Equipment [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 8.15%