ASSETS HELD FOR SALE - Schedule of Assets Held For Sale (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets held for sale	$ 1,122	$ 804
Nonaccrual Loans	1,429	1,307
Commercial
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Nonaccrual Loans	1,184	1,082
Consumer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Nonaccrual Loans	245	225
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:	1,118	799
Operating lease equipment	4	5
Total assets held for sale	1,122	804
Nonaccrual Loans	0	10
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:	385	18
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:	$ 733	$ 781

Operating Lease Equipment, Held-For-Sale

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- Definition

Amount of assets held-for-sale that are not part of a disposal group.

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Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
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- Definition

Amount, before valuation allowance, of financing receivable classified as held-for-sale.

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