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Asset Impairment Expense (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
May 15, 2024
USD ($)
Sep. 30, 2020
Asset Impairment Expense [Line Items]                
Impairment of Long-Lived Assets Held-for-use $ 230   $ 174   $ 276 $ 194    
Other Asset Impairment Charges $ 230   174   276 194    
Impairment expense         $ 276 199    
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Jordan (IPP1 & IPP4)                
Asset Impairment Expense [Line Items]                
Disposal Group Not Discontinued Operation Ownership Interest Sold 26.00%       26.00%     26.00%
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Mong Duong held-for-sale                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring $ 384       $ 384      
Disposal Group Not Discontinued Operation Ownership Interest Sold 51.00%       51.00%      
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Mong Duong Financing SPV                
Asset Impairment Expense [Line Items]                
Disposal Group Not Discontinued Operation Ownership Interest Sold 51.00%       51.00%      
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | AES Brasil [Domain]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring $ 1,300       $ 1,300   $ 1,339  
Disposal Group Not Discontinued Operation Ownership Interest Sold 47.30%       47.30%      
Foreign Currency Exchange Rate, Translation             533,000,000  
Assets carrying amount disclosure nonrecurring, prior to impairment             $ 1,556  
Long Lived Assets held and Used | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring $ 35       $ 35      
Other Subsidiaries [Member]                
Asset Impairment Expense [Line Items]                
Impairment of Long-Lived Assets Held-for-use 7   4   16 10    
Maritza | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     196     196    
Maritza | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges           137    
Maritza | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     24     24    
Jordan (IPP1 & IPP4) | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     179 $ 179   179    
Jordan (IPP1 & IPP4) | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges 0   15 14 0 29    
Jordan (IPP1 & IPP4) | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     0 $ 0   0    
AES Renewable Holdings | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges 0   18   0 18    
AES Renewable Holdings | Long Lived Assets held and Used | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring 11       11      
Norgener | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges 0   137   0 137    
Norgener | Long Lived Assets held and Used | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring 24   24   24 24    
Mong Duong held-for-sale                
Asset Impairment Expense [Line Items]                
Impairment of Long-Lived Assets to be Disposed of 6   0   43 0    
Mong Duong held-for-sale | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring 390 $ 450     390      
Mong Duong held-for-sale | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges 6 37            
Mong Duong held-for-sale | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring 0 0     0      
Renewables | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     29     29    
Renewables | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges           18    
Renewables | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     11     11    
Renewables | Long Lived Assets held and Used | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring     11     11    
AES Brasil [Domain]                
Asset Impairment Expense [Line Items]                
Impairment of Long-Lived Assets to be Disposed of $ 217   $ 0   $ 217 $ 0    
AES Brasil [Domain] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring   1,556            
AES Brasil [Domain] | Long Lived Assets Held And Used [Member]                
Asset Impairment Expense [Line Items]                
Other Asset Impairment Charges   217            
AES Brasil [Domain] | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]                
Asset Impairment Expense [Line Items]                
Assets Carrying Amount Disclosure Nonrecurring   $ 0