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LOANS AND LEASES - Summary of Loans and Leases Portfolio (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | $ 119,088 | $ 116,660
Loans held for sale | 3,300 | 1,300
Mortgage loans serviced for others | Banking Subsidiaries |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 77,500 | 69,600
SBA Loans Serviced For Others | Banking Subsidiaries |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 33 | 0
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 57,538 | 56,783
Commercial | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 41,479 | 40,857
Commercial | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 13,522 | 13,023
Commercial | Leases |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 2,537 | 2,903
Retail |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 61,550 | 59,877
Retail | Residential mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 19,083 | 18,978
Retail | Home equity loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 812 | 1,073
Retail | Home equity lines of credit |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 11,979 | 12,710
Retail | Home equity loans serviced by others |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 289 | 399
Retail | Home equity lines of credit serviced by others |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 74 | 104
Retail | Automobile |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 12,120 | 12,106
Retail | Education |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 10,347 | 8,900
Retail | Credit cards |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 2,198 | 1,991
Retail | Other retail |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | $ 4,648 | $ 3,616

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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