Annual report pursuant to Section 13 and 15(d)

Our Portfolio - Equity Method Investments, Additional Information (Details)

v3.20.4
Our Portfolio - Equity Method Investments, Additional Information (Details)
 1 Months Ended 12 Months Ended
Jul. 01, 2020
USD ($)
project
GW
MW
Dec. 31, 2020
USD ($)
numberOfPartnerships
GW
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Schedule of Equity Method Investments [Line Items]          
OTTI on equity method investments | $     $ 0 $ 0 $ 0
Operating Solar Projects          
Schedule of Equity Method Investments [Line Items]          
Number of projects 2        
Jupiter          
Schedule of Equity Method Investments [Line Items]          
Portfolio of renewable energy projects, power | GW 2.3        
Capital contribution to partnership | $ $ 467,000,000        
Project aggregate capacity | MW 2.1        
Investment, limited partnership, expected total contribution | $ $ 540,000,000        
Additional number of projects 3        
Number of projects owned 13        
Project, weighted average contract life 13 years        
Distribution percent 49.00%        
Distribution from partnership, upon achievement of certain targets, percent 33.00%        
Jupiter | Class A Units          
Schedule of Equity Method Investments [Line Items]          
Ownership percent 100.00%        
Jupiter | Class B Units          
Schedule of Equity Method Investments [Line Items]          
Distribution from partnership, upon achievement of certain targets, percent 67.00%        
Jupiter | Operating Wind Project          
Schedule of Equity Method Investments [Line Items]          
Number of projects 8        
Jupiter | Onshore Wind Projects          
Schedule of Equity Method Investments [Line Items]          
Number of projects owned 9        
Jupiter | Solar Projects          
Schedule of Equity Method Investments [Line Items]          
Number of projects owned 4        
Lighthouse Partnerships          
Schedule of Equity Method Investments [Line Items]          
Portfolio of renewable energy projects, power | GW   1.6      
Capital contribution to partnership | $   $ 663,000,000      
Project, weighted average contract life   14 years      
Number of partnerships | numberOfPartnerships   3      
Investment, limited partnership, preferred cash equity interests | $   $ 200,000,000 $ 200,000,000