LOAN SALES AND SECURITIZATIONS - Small Business Association, MSRs Amortization Method (Details) - USD ($) $ in Millions |
12 Months Ended | |
---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
|
Servicing Asset at Amortized Cost, Balance [Roll Forward] | ||
Fair value, end of year | $ 238 | $ 226 |
Commercial | ||
Servicing Asset at Amortized Cost, Balance [Roll Forward] | ||
Carrying value, beginning of year | 21 | 20 |
New servicing assets created | 14 | 9 |
Amortization and other | (8) | (8) |
Carrying value, end of year | 27 | 21 |
Fair value, end of year | $ 30 | $ 24 |
Commercial | Sensitivity Analysis Amortization Carrying Method | ||
Servicing Asset at Amortized Cost, Balance [Roll Forward] | ||
Weighted-average life (years) | 3 years 4 months | 3 years 3 months 18 days |