v3.26.1
Non-consolidated variable interest entities - Additional Information (Details) - Variable Interest Entity Not Primary Beneficiary
$ in Billions
6 Months Ended
Jun. 30, 2026
USD ($)
statutoryTrust
Dec. 31, 2025
USD ($)
Variable Interest Entity    
Number of statutory trust | statutoryTrust 2  
Servicing rights on whole loan sales, principal balance outstanding | $ $ 5.7 $ 6.0