LEASES (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Lessee, Lease, Description [Line Items]
ROU asset location	Premises and equipment, net of depreciation and amortization	Premises and equipment, net of depreciation and amortization
Lease liabilities location	Other liabilities, plus allowances	Other liabilities, plus allowances
ROU asset	$ 2,805	$ 2,836
Lease liability	2,969	$ 3,013
Future lease obligation that has not yet commenced	$ 255
Term of lease, not yet commenced	15 years
Weighted Average
Lessee, Lease, Description [Line Items]
Operating lease term	6 years