v3.26.3
BORROWINGS - Schedule of Secured Structured Financings (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Initial Note Amounts Issued $ 65 $ 53
Subsidiaries | Secured structured financings, maturing through May 2034    
Debt Instrument [Line Items]    
Balance 12,989  
Initial Note Amounts Issued 49,372  
Collateral 17,867  
Restricted Cash $ 1,390  
Subsidiaries | Secured structured financings, maturing through May 2034 | Minimum    
Debt Instrument [Line Items]    
Initial Weighted Average Interest Rate Range 0.59% 0.58%
Subsidiaries | Secured structured financings, maturing through May 2034 | Maximum    
Debt Instrument [Line Items]    
Initial Weighted Average Interest Rate Range 6.73% 7.69%
Subsidiaries | Public securitizations maturing on various dates through May 2034    
Debt Instrument [Line Items]    
Balance $ 12,608  
Initial Note Amounts Issued 42,139  
Collateral 16,997  
Restricted Cash $ 1,337  
Subsidiaries | Public securitizations maturing on various dates through May 2034 | Minimum    
Debt Instrument [Line Items]    
Initial Weighted Average Interest Rate Range 0.59%  
Subsidiaries | Public securitizations maturing on various dates through May 2034 | Maximum    
Debt Instrument [Line Items]    
Initial Weighted Average Interest Rate Range 6.45%  
Subsidiaries | Privately issued amortizing notes maturing on various dates through August 2030    
Debt Instrument [Line Items]    
Balance $ 381  
Initial Note Amounts Issued 7,233  
Collateral 870  
Restricted Cash $ 53  
Subsidiaries | Privately issued amortizing notes maturing on various dates through August 2030 | Minimum    
Debt Instrument [Line Items]    
Initial Weighted Average Interest Rate Range 3.13%  
Subsidiaries | Privately issued amortizing notes maturing on various dates through August 2030 | Maximum    
Debt Instrument [Line Items]    
Initial Weighted Average Interest Rate Range 6.73%