Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Schedule of Outstanding Non-Recourse Asset-Backed Debt (Details)

v3.22.2.2
Long-term Debt - Schedule of Outstanding Non-Recourse Asset-Backed Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Unamortized financing costs $ (10) $ (10)
Total non-recourse debt 408 430
Carrying Value of Assets Pledged as of 1,648 1,460
Collateral Pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Restricted cash 24 19
Collateral pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying Value of Assets Pledged as of 606 592
Asset-backed non-recourse debt | HASI Sustainable Yield Bond 2015-1A    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying value of Convertible Notes $ 74 77
Interest rate (as a percent) 4.28%  
Anticipated Balance at Maturity $ 0  
Asset-backed non-recourse debt | HASI Sustainable Yield Bond 2015-1A | Collateral pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying Value of Assets Pledged as of 137 139
Asset-backed non-recourse debt | HASI SYB Trust 2016-2    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying value of Convertible Notes $ 61 62
Interest rate (as a percent) 4.35%  
Anticipated Balance at Maturity $ 0  
Asset-backed non-recourse debt | HASI SYB Trust 2016-2 | Collateral pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying Value of Assets Pledged as of 67 70
Asset-backed non-recourse debt | HASI SYB Trust 2017-1    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying value of Convertible Notes $ 143 146
Interest rate (as a percent) 3.86%  
Anticipated Balance at Maturity $ 0  
Asset-backed non-recourse debt | HASI SYB Trust 2017-1 | Collateral pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying Value of Assets Pledged as of 231 208
Asset-backed non-recourse debt | Lannie Mae Series 2019-1    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying value of Convertible Notes $ 91 93
Interest rate (as a percent) 3.68%  
Anticipated Balance at Maturity $ 0  
Asset-backed non-recourse debt | Lannie Mae Series 2019-1 | Collateral pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying Value of Assets Pledged as of 120 110
Other non-recourse debt    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Other non-recourse debt 49 62
Anticipated Balance at Maturity $ 18  
Other non-recourse debt | Minimum    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Interest rate (as a percent) 3.15%  
Other non-recourse debt | Maximum    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Interest rate (as a percent) 7.23%  
Other non-recourse debt | Collateral pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Carrying Value of Assets Pledged as of $ 51 $ 65