LOANS AND LEASES - Schedule of Financial Effects of Loans Modified (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	21 months	14 months
Weighted Average Interest Rate Reduction	1.00%	2.89%
Weighted Average Payment Delay (in Months)	13 months	6 months
Amount of Principal Forgiven	$ 0	$ 0
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	21 months	14 months
Weighted Average Interest Rate Reduction	0.84%	2.93%
Weighted Average Payment Delay (in Months)	21 months	7 months
Amount of Principal Forgiven	$ 0	$ 0
Commercial | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	6 months	9 months
Weighted Average Interest Rate Reduction	0.60%	0.00%
Weighted Average Payment Delay (in Months)	5 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
Commercial | Owner occupied commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	30 months	17 months
Weighted Average Interest Rate Reduction	1.42%	3.52%
Weighted Average Payment Delay (in Months)	7 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
Commercial | Non-owner occupied commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	20 months	12 months
Weighted Average Interest Rate Reduction	0.78%	3.00%
Weighted Average Payment Delay (in Months)	40 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	23 months	20 months
Weighted Average Interest Rate Reduction	0.79%	2.04%
Weighted Average Payment Delay (in Months)	9 months	7 months
Amount of Principal Forgiven	$ 0	$ 0
Commercial | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	11 months	16 months
Weighted Average Interest Rate Reduction	0.00%	0.00%
Weighted Average Payment Delay (in Months)	6 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	56 months	74 months
Weighted Average Interest Rate Reduction	2.73%	4.08%
Weighted Average Payment Delay (in Months)	11 months	6 months
Amount of Principal Forgiven	$ 0	$ 0
Consumer | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	71 months	78 months
Weighted Average Interest Rate Reduction	1.89%	4.13%
Weighted Average Payment Delay (in Months)	11 months	6 months
Amount of Principal Forgiven	$ 0	$ 0
Consumer | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	37 months	59 months
Weighted Average Interest Rate Reduction	4.27%	2.81%
Weighted Average Payment Delay (in Months)	0 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
Consumer | Consumer auto
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	31 months	27 months
Weighted Average Interest Rate Reduction	0.53%	0.69%
Weighted Average Payment Delay (in Months)	0 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
Consumer | Consumer other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	60 months	53 months
Weighted Average Interest Rate Reduction	9.66%	9.42%
Weighted Average Payment Delay (in Months)	0 months	0 months
Amount of Principal Forgiven	$ 0	$ 0
SVB
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	12 months	5 months
Weighted Average Interest Rate Reduction	2.75%	1.00%
Weighted Average Payment Delay (in Months)	10 months	5 months
Amount of Principal Forgiven	$ 0	$ 0
SVB | Investor dependent - early stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	10 months	9 months
Weighted Average Interest Rate Reduction	2.75%	1.00%
Weighted Average Payment Delay (in Months)	7 months	5 months
Amount of Principal Forgiven	$ 0	$ 0
SVB | Investor dependent - growth stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	12 months	9 months
Weighted Average Interest Rate Reduction	0.00%	0.00%
Weighted Average Payment Delay (in Months)	8 months	5 months
Amount of Principal Forgiven	$ 0	$ 0
SVB | Innovation C&I and cash flow dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Term Extension (in Months)	12 months	4 months
Weighted Average Interest Rate Reduction	0.00%	0.00%
Weighted Average Payment Delay (in Months)	12 months	5 months
Amount of Principal Forgiven	$ 0	$ 0