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Asset Impairment Expense (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Mar. 31, 2021
Sep. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       $ 1,067 $ 763 $ 1,575
Other Asset Impairment Charges       1,067 763 1,575
Long-Lived Assets       30,338 23,395 20,183
Impairment expense       1,079 1,715 1,575
JORDAN | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]            
Asset Impairment Expense [Line Items]            
Assets carrying amount       164    
Jordan (IPP1 & IPP4) | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]            
Asset Impairment Expense [Line Items]            
Proceeds from divestiture of business       58    
Angamos [Member]            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       0 0 155
Buffalo Gap [Member]            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       4 0 29
buffalo gap II [Member] [Member]            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       0 0 73
buffalo gap III            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       6 0 91
Ventanas 3 & 4            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       0 0 649
Mountain View Power Partners            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       0 0 67
AES PR            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use   $ 475   0 0 475
Assets carrying amount   $ 73        
AES Panama            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use $ 11     0 0 11
AES Bulgaria            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       0 468 0
TEG            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets Held-for-use       77 104 0
New York Wind            
Asset Impairment Expense [Line Items]            
Impairment of Long-Lived Assets to be Disposed of       186 0 $ 0
Long Lived Assets Held And Used [Member] | TEG            
Asset Impairment Expense [Line Items]            
Other Asset Impairment Charges     $ 77   $ 104  
Long Lived Assets Held And Used [Member] | New York Wind            
Asset Impairment Expense [Line Items]            
Other Asset Impairment Charges       186    
Long Lived Assets Held-for-sale, Name [Domain] | AES Bulgaria            
Asset Impairment Expense [Line Items]            
Other Asset Impairment Charges       $ 468