REGULATORY MATTERS - Transition Schedule for New Ratios, Including the Capital Conservation Buffer (Details) - Phased in Beginning 2018	Dec. 31, 2022
Minimum common equity tier 1 capital ratio	0.045%
Minimum common equity tier 1 capital ratio plus capital conservation buffer	0.07%
Minimum tier 1 capital ratio	0.060
Minimum tier 1 capital ratio plus capital conservation buffer	0.085%
Minimum total capital ratio	0.080
Minimum total capital ratio plus capital conservation buffer	0.105%