Annual report pursuant to Section 13 and 15(d)

Mortgage Servicing Rights - Additional Information (Details)

v3.21.1
Mortgage Servicing Rights - Additional Information (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Transfers And Servicing [Abstract]    
Mortgage servicing right weighted average life 5 years 1 month 6 days 4 years 10 months 24 days
Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement $ 60.8 $ 50.6