LEASES (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
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	$ 2,822	$ 2,801
Lease liability	2,991	$ 2,974
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