LOANS AND ALLOWANCE FOR CREDIT LOSSES - Modifications (Details)	12 Months Ended
Dec. 31, 2023 USD ($) borrower	Dec. 31, 2022 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of borrower \| borrower	2
Allowance for credit losses	$ 19,208,000	$ 16,615,000
Commercial \| Commercial real estate - non-owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost	$ 3,907,000
% of Total Loan Type	0.53%
Commercial \| Commercial real estate - non-owner occupied \| One loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost	$ 1,381,000,000
Allowance for credit losses	$ 38,000,000
Days delinquent	117 days
Added a weighted-average to the life of the loan	6 months
Commercial \| Commercial real estate - non-owner occupied \| Another loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost	$ 2,526,000,000
Allowance for credit losses	$ 486,000,000
Added a weighted-average to the life of the loan	12 months

Number of borrower which financing receivable modified experiencing financial difficulty.

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- Definition

Period financing receivable is past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes threshold period past due to write off as uncollectible.

+ References

No definition available.

+ Details

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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- Definition

Accumulated amortized cost excluding accrued interest, of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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- Definition

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
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-Section 55
-Paragraph 12A
-Publisher FASB
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