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Acquisitions and Dispositions - Dispositions (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 01, 2022
Feb. 03, 2021
Dec. 31, 2022
Sep. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Gain on sale       $ 22 $ 51 $ 17
Watson Facility            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Ownership interest 49.00%          
Proceeds from sale of investment $ 59          
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Agua Caliente Solar Project            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Percentage of ownership sold   35.00%        
Cash consideration   $ 202        
Gain on sale   17        
Cash disposed   $ 7        
East | Subsequent Event | Forecast | Disposal Group, Disposed of by Sale, Not Discontinued Operations            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Proceeds from sale of land and related assets     $ 212      
West/Services/Other | Watson Facility            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Gain on sale $ 46