EXCESS MORTGAGE SERVICING RIGHTS - Narrative (Details) - USD ($) $ in Millions		9 Months Ended
Oct. 02, 2023	Sep. 30, 2023
Excess MSR joint ventures \| MSRs
Schedule of Equity Method Investments [Line Items]
Discount rate		8.80%
Subsequent Event \| Computershare Mortgage Services Inc
Schedule of Equity Method Investments [Line Items]
Business combination, consideration transferred	$ 720

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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