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Loans - Additional Information (Detail) - USD ($)
$ in Millions
Sep. 20, 2024
Sep. 05, 2024
Aug. 29, 2024
Class XXXIX and Class LIII [Member]      
Disclosure of detailed information about loans [line items]      
Aggregate notional amount for which offer was announced     $ 500
Class XXXIX [member]      
Disclosure of detailed information about loans [line items]      
Aggregate notional amount for which offer of repurchase was accepted     334
Aggregate notional amount for which offer received   $ 40  
Aggregate notional amount for which offer cancelled $ 40    
Class LIII [member]      
Disclosure of detailed information about loans [line items]      
Aggregate notional amount for which offer of repurchase was accepted     $ 166
Class XXXIX and Class XXXI [Member]      
Disclosure of detailed information about loans [line items]      
Borrowings, interest rate   8.75%  
Notional amount   $ 500