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Investments In and Advances To Affiliates (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Minority Owned Affiliates [Member]            
Schedule of Investments [Line Items]            
Revenue       $ 1,520 $ 1,220  
Operating income (loss)       35 3  
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest       (174) (165)  
Net Income (Loss) attributable to affiliates       (174) (170)  
Noncash or Part Noncash Divestiture, Amount of Consideration Received       16 11  
Revenue $ 3,422   $ 2,855 6,602 5,781  
Operating income (loss) 692   453 1,332 894  
Gain (Loss) on Disposition of Business 209   70 209 69  
Income (Loss) from Equity Method Investments (34)   $ (22) (42) (56)  
Proceeds from Divestiture of Businesses and Interests in Affiliates       233 5  
Payments to Acquire Businesses and Interest in Affiliates       21 $ 112  
Investments in and advances to affiliates $ 885     $ 885   $ 1,004
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Uplight            
Schedule of Investments [Line Items]            
Proceeds from Divestiture of Businesses and Interests in Affiliates, contingent event total   $ 30        
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Alto Maipo [Member]            
Schedule of Investments [Line Items]            
Disposal Group Not Discontinued Operation Ownership Interest Sold 99.00%     99.00%    
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Dominican Republic Renewables            
Schedule of Investments [Line Items]            
Disposal Group Not Discontinued Operation Ownership Interest Sold     50.00%   50.00%  
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Uplight            
Schedule of Investments [Line Items]            
Divestiture of Business, sales price   40        
Proceeds from Divestiture of Businesses and Interests in Affiliates   $ 10        
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Dominican Republic Renewables            
Schedule of Investments [Line Items]            
Gain (Loss) on Disposition of Business         $ 70  
Proceeds from Divestiture of Businesses         100  
Divestiture of Business, sales price     $ 103   103  
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | JK Projects            
Schedule of Investments [Line Items]            
Gain (Loss) on Disposition of Business       $ 24    
Proceeds from Divestiture of Businesses       $ 25    
Barry Affiliate            
Schedule of Investments [Line Items]            
Equity Method Investment, Ownership Percentage 100.00%     100.00%    
Majority Owned Affiliate [Member]            
Schedule of Investments [Line Items]            
Revenue       $ 0 0  
Operating income (loss)       0 (1)  
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest       0 (1)  
Net Income (Loss) attributable to affiliates       0 $ (1)  
Barry Affiliate            
Schedule of Investments [Line Items]            
Other Long-Term Debt $ 43     $ 43   $ 44
Uplight | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]            
Schedule of Investments [Line Items]            
Disposal Group Not Discontinued Operation Ownership Interest Sold   25.00%        
AES Hispanola Holdings BV            
Schedule of Investments [Line Items]            
Discontinued Operation, Equity Method Investment Retained after Disposal, Ownership Interest before Disposal       65.00%    
Dominican Republic Renewables            
Schedule of Investments [Line Items]            
Discontinued Operation, Equity Method Investment Retained after Disposal, Ownership Interest before Disposal       33.00%    
Fluence [Member]            
Schedule of Investments [Line Items]            
Equity Method Investment, Realized Gain (Loss) on Disposal (less than)       $ 186    
Common Units Sold       10,066,414    
Proceeds from Divestiture of Businesses, Net of Cash Divested       $ 207    
Fluence [Member] | Fluence [Member]            
Schedule of Investments [Line Items]            
Equity Method Investment, Ownership Percentage 22.00% 28.00%   22.00%    
Bosforo and Cuscatlan            
Schedule of Investments [Line Items]            
Payments to Acquire Businesses and Interest in Affiliates       $ 44    
Bosforo and Cuscatlan | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]            
Schedule of Investments [Line Items]            
Disposal Group Not Discontinued Operation Ownership Interest Sold 50.00%     50.00%    
JK Projects            
Schedule of Investments [Line Items]            
Investments in and advances to affiliates $ 27     $ 27    
Proceeds received from contribution into trust       $ 25    
JK Projects | JK Projects            
Schedule of Investments [Line Items]            
Equity Method Investment, Ownership Percentage 51.00%     51.00%