VARIABLE INTEREST ENTITIES - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions		Dec. 31, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Lending to SPEs included in Loans and leases	[1]	$ 140,749	$ 137,142
Tax-advantaged investments included in Other assets	[1],[2]	14,428	14,349
Unfunded commitments for tax-advantaged investments included in Other liabilities	[1],[2]	5,439	6,090
Asset-backed investments included in Debt securities	[3]	7,933	8,599
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Lending to SPEs included in Loans and leases		5,631	4,215
Tax-advantaged investments included in Other assets		2,967	2,902
Unfunded commitments for tax-advantaged investments included in Other liabilities		1,066	1,109
Asset-backed investments included in Debt securities		$ 338	$ 412

[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.

[3] Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.