ASSETS HELD FOR SALE - Schedule of Assets Held For Sale (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets held for sale	$ 804	$ 85
Nonaccrual Loans	1,307	1,184
Commercial
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Nonaccrual Loans	1,082	1,008
Consumer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Nonaccrual Loans	225	176
Disposal Group, Held-for-Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans and leases:	799	82
Operating lease equipment	5	3
Total assets held for sale	804	85
Nonaccrual Loans	10	0
Disposal Group, Held-for-Sale, Not Discontinued Operations | Commercial
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans and leases:	18	27
Disposal Group, Held-for-Sale, Not Discontinued Operations | Consumer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans and leases:	$ 781	$ 55