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SECURITIES - Additional Information (Details) - USD ($) $ in Billions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Residential Investment securities sold, carrying value | $ 5.5 | $ 9.1 | $ 47.4 | $ 19.5

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- Definition Carrying value of mortgage backed securities sold during period. + References No definition available. + Details
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- References No definition available. + Details
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