v3.26.3
Capital - Additional Information (Details) - USD ($)
$ in Millions
Oct. 22, 2026
Sep. 30, 2026
Dec. 31, 2025
Concentration Risk [Line Items]      
Excess Capital   $ 132 $ 154
Excess Capital to Assets   0.20% 0.21%
Subsequent Event | O 2026 Q2 Dividends      
Concentration Risk [Line Items]      
Interest and Dividends Payable, Current $ 43    
Subsequent Event | Class B-1 Putable | O 2026 Q2 Dividends      
Concentration Risk [Line Items]      
Dividends, Cash Declared, Annualized Rate 4.75%    
Subsequent Event | Class B-2 Putable | O 2026 Q2 Dividends      
Concentration Risk [Line Items]      
Dividends, Cash Declared, Annualized Rate 10.00%