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Investments Accounted for by the Equity Method and Variable Interest Entities - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 11, 2025
Jun. 30, 2015
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Jun. 30, 2025
Mar. 20, 2025
Jun. 13, 2024
Schedule of Equity Method Investments [Line Items]                
Retained earnings, undistributed earnings from equity method investees     $ 25 $ 20        
Payments to acquire equity method investments     0 0 $ 28      
Long-term debt     8,674          
Equity investments in affiliates     291 $ 309        
Desert Sunlight                
Schedule of Equity Method Investments [Line Items]                
Carrying value basis difference     109          
Equity investments in affiliates     $ 212          
Ownership interest (as a percentage)     25.00%          
Rosie Central BESS                
Schedule of Equity Method Investments [Line Items]                
Equity investments in affiliates               $ 28
Golden Puma Fund LLC                
Schedule of Equity Method Investments [Line Items]                
Equity investments in affiliates $ 3              
Ownership interest (as a percentage) 100.00%              
Acquisition funded by cash on hand $ 1              
Pine Forest TargetCo                
Schedule of Equity Method Investments [Line Items]                
Ownership interest (as a percentage)           50.00%    
Rosie South TargetCo                
Schedule of Equity Method Investments [Line Items]                
Ownership interest (as a percentage)             50.00%  
Desert Sunlight                
Schedule of Equity Method Investments [Line Items]                
Payments to acquire equity method investments   $ 285            
Business acquisition, consideration transferred, working capital   $ 181            
Long-term debt     $ 259