VARIABLE INTEREST ENTITIES - Schedule of Consolidated Variable Interest Entities (Details) - USD ($) $ in Millions		Jun. 30, 2023	Dec. 31, 2022
ASSETS:
Cash and due from banks	[1]	$ 1,689	$ 1,489
Lending to special purpose entities included in loans and leases		149,276	154,679
Other assets	[1]	13,022	13,089
TOTAL ASSETS		223,066	226,733
LIABILITIES:
Long-term borrowed funds	[1]	14,100	15,887
Other liabilities	[1]	4,345	4,520
TOTAL LIABILITIES		199,481	$ 203,043
Variable Interest Entity, Primary Beneficiary
ASSETS:
Cash and due from banks		149
Lending to special purpose entities included in loans and leases		2,207
Other assets		6
TOTAL ASSETS		2,362
LIABILITIES:
Long-term borrowed funds		2,000
Other liabilities		2
TOTAL LIABILITIES		$ 2,002

[1] Includes amounts in consolidated VIEs. See Note 6 for additional information.