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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Sep. 30, 2024
Jun. 30, 2024
Goodwill [Line Items]              
Amortization of Intangible Assets     $ 88 $ 82 $ 71    
Goodwill impairment expense     0 12 777    
Goodwill $ 348 $ 362 345 348 $ 362 $ 348 $ 348
Goodwill 3,748   3,745 3,748      
Operating Segments [Member] | Energy Infrastructure              
Goodwill [Line Items]              
Goodwill 27   27 27      
Goodwill 683   683 683      
Operating Segments [Member] | Utilities              
Goodwill [Line Items]              
Goodwill impairment expense   133          
Goodwill 0   0 0      
Goodwill 2,709   $ 2,709 $ 2,709      
TEG TEP | Operating Segments [Member]              
Goodwill [Line Items]              
Goodwill impairment expense $ 12            
AES Andes | Operating Segments [Member]              
Goodwill [Line Items]              
Goodwill impairment expense   $ 644