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Financial Statement Presentation New Accounting Pronouncement Adopted (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2025
USD ($)
agreement
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Cash and Cash Equivalent $ 1,753   $ 1,524  
Restricted Cash and Cash Equivalent, Current 735   437  
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents 2,566 $ 2,555 2,039 $ 1,990
Accounts Receivable, Allowance for Credit Loss, Current 65   52  
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) 13 6    
Accounts Receivable, Allowance for Credit Loss, Writeoff   (1)    
Financing Receivable, Allowance for Credit Loss, Recovery   (2)    
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation   (1)    
Accounts and Financing Receivable, Allowance for Credit Loss 109 68 96 64
Preferred Stock, Value, Issued   $ 838    
Additional Paid in Capital $ 5,888   5,913  
Obligations Number Of Agreements 140      
Guarantor Obligations, Maximum Exposure, Undiscounted $ 4,774      
Supplier Finance Program, Obligation 605   917  
Proceeds Investment Tax Credits $ 75      
Variable Interest Entity, Terms of Arrangements 1.7 billion      
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Jordan (IPP1 & IPP4)        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Disposal Group Not Discontinued Operation Ownership Interest Sold 26.00% 26.00%    
Secured Debt [Member] | Standby Letters of Credit [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Obligations Number Of Agreements | agreement 7      
Guarantor Obligations, Maximum Exposure, Undiscounted $ 324      
Accounts Payable and Accrued Liabilities        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Supplier Finance Program, Obligation 416   616  
Accounts Payable and Accrued Liabilities | Minimum [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Supplier Finance Program, Obligation 1   1  
Accounts Payable and Accrued Liabilities | Maximum [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Supplier Finance Program, Obligation 75   69  
Mong Duong Subsidiary [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Accounts Receivable, Allowance for Credit Loss, Current 23 $ 25 23 26
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) 0 0    
Accounts Receivable, Allowance for Credit Loss, Writeoff   0    
Financing Receivable, Allowance for Credit Loss, Recovery   (1)    
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation   0    
Accounts Receivable, Allowance for Credit Loss 23   23  
AES Argentina [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Accounts Receivable, Allowance for Credit Loss, Current 5 6 5 7
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) 0 0    
Accounts Receivable, Allowance for Credit Loss, Writeoff   0    
Financing Receivable, Allowance for Credit Loss, Recovery   0    
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation   (1)    
Other Entity [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Accounts Receivable, Allowance for Credit Loss, Current 16 18 $ 16 $ 16
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) $ 0 2    
Accounts Receivable, Allowance for Credit Loss, Writeoff   0    
Financing Receivable, Allowance for Credit Loss, Recovery   0    
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation   $ 0