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SECURITIES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items] |  |
Residential investment securities sold, carrying value | $ 28,900.0 | $ 11,500.0
Commercial securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Impairment on commercial mortgage-backed security |  | $ 0.4

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- Definition Carrying value of mortgage backed securities sold during period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Other-than-temporary Impairment Loss, Debt Securities, Available-for-Sale1 + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |