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Investments Accounted for by the Equity Method and Variable Interest Entities - Unconsolidated Entities (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]    
Investment Balance $ 375 $ 381
Avenal    
Schedule of Equity Method Investments [Line Items]    
Economic Interest 50.00%  
Investment Balance $ 5  
Desert Sunlight    
Schedule of Equity Method Investments [Line Items]    
Economic Interest 25.00%  
Investment Balance $ 239  
Elkhorn Ridge    
Schedule of Equity Method Investments [Line Items]    
Economic Interest 67.00%  
Investment Balance $ 26  
GenConn    
Schedule of Equity Method Investments [Line Items]    
Economic Interest 50.00%  
Investment Balance $ 85  
San Juan Mesa    
Schedule of Equity Method Investments [Line Items]    
Economic Interest 75.00%  
Investment Balance $ 20