VARIABLE INTEREST ENTITIES - Schedule of Consolidated Variable Interest Entities (Details) - USD ($) $ in Millions		Dec. 31, 2025	Dec. 31, 2024
ASSETS:
Cash and due from banks		$ 1,464	$ 1,409
Interest-bearing deposits in banks	[1]	961	635
Net loans and leases	[1]	140,749	137,142
Other assets	[1],[2]	14,428	14,349
TOTAL ASSETS		226,351	217,521
LIABILITIES:
Long-term borrowed funds	[1]	11,224	12,401
Other liabilities	[1],[2]	5,439	6,090
TOTAL LIABILITIES		200,034	193,267
Variable Interest Entity, Primary Beneficiary
ASSETS:
Interest-bearing deposits in banks		157	209
Net loans and leases		1,929	3,843
Other assets		11	21
TOTAL ASSETS		2,097	4,073
LIABILITIES:
Long-term borrowed funds		1,598	3,375
Other liabilities		4	8
TOTAL LIABILITIES		$ 1,602	$ 3,383

[1] Includes amounts in consolidated VIEs. See Note 9 for additional information.

[2] See Note 1 for information regarding updates to the Consolidated Balance Sheets during 2025.