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LOANS AND LEASES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Interest receivable |  | $ 875 | $ 820 |
Net loans and leases | [1] | 143,861 | 154,679 |
Interest income on direct financing and sales-type leases |  | 46 | 46 | $ 49
Retail | Residential mortgages | Pledged as collateral for FHLB borrowing capacity |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Net loans and leases |  | 36,000 | 38,400 |
Retail and Commercial | Auto, commercial and commercial real estate loans | Notes Payable, Other Payables |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Net loans and leases |  | $ 31,900 | $ 34,800 |
Minimum |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Term of contract |  | 3 years |  |
Maximum |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Term of contract |  | 10 years |  |
[1] | Includes amounts in consolidated VIEs. See Note 11 for additional information.

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