Quarterly report pursuant to Section 13 or 15(d)

MORTGAGE LOAN SALES AND SERVICING RIGHTS - Narrative (Details)

v3.20.2
MORTGAGE LOAN SALES AND SERVICING RIGHTS - Narrative (Details) - Residential Mortgage - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Servicing Assets at Fair Value [Line Items]      
Servicing income $ 14 $ 16  
Unpaid principal balance of third party serviced loans $ 23,200   $ 22,400