FAIR VALUE MEASUREMENTS - Unobservable Inputs Used and Valuation Techniques (Details) - Level 3	Dec. 31, 2024	Dec. 31, 2023
Minimum | Discounted Cash Flow | Constant prepayment rate | Residential mortgages
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0508	0.0670
Minimum | Discounted Cash Flow | Option adjusted spread | Residential mortgages
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	3.98
Minimum | Discounted Cash Flow | Option adjusted spread | Mortgage Servicing Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input		3.98
Minimum | Internal Model | Pull through rate | Other contracts
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other derivative contracts, measurement input	0.0509	0.2490
Minimum | Internal Model | MSR value | Other contracts
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other derivative contracts, measurement input	0.2391	(0.0890)
Maximum | Discounted Cash Flow | Constant prepayment rate | Residential mortgages
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.1632	0.1455
Maximum | Discounted Cash Flow | Option adjusted spread | Residential mortgages
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	10.58
Maximum | Discounted Cash Flow | Option adjusted spread | Mortgage Servicing Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input		10.58
Maximum | Internal Model | Pull through rate | Other contracts
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other derivative contracts, measurement input	0.9990	0.9970
Maximum | Internal Model | MSR value | Other contracts
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other derivative contracts, measurement input	1.7164	1.4124
Weighted Average | Discounted Cash Flow | Constant prepayment rate | Residential mortgages
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0670	0.0723
Weighted Average | Discounted Cash Flow | Option adjusted spread | Residential mortgages
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	6.32
Weighted Average | Discounted Cash Flow | Option adjusted spread | Mortgage Servicing Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input		6.30
Weighted Average | Internal Model | Pull through rate | Other contracts
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other derivative contracts, measurement input	0.8306	0.8034
Weighted Average | Internal Model | MSR value | Other contracts
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other derivative contracts, measurement input	1.2123	0.8804