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LOANS AND LEASES - Outstanding Principal Balance and Carrying Amount of Loans Acquired in a Business Combination (Detail) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Document Period End Date | Jun. 30, 2019 |
Carrying amount | $ 22,543 | $ 22,153
Loans Acquired In A Business Combination Accounted For Under ASC 310-30 [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding balance | 3,247 | 3,768
Carrying amount | 2,998 | 3,570
Loans Acquired In A Business Combination Accounted For Under ASC 310-20 [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding balance | 504 | 602
Carrying amount | 491 | 513
Loans Acquired In Business Combination Including Purchased Credit Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding balance | 3,751 | 4,370
Carrying amount | $ 3,489 | $ 4,083

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- Definition Represents the amount of unpaid principal balance of loans and leases held in the portfolio, including but not limited to commercial and consumer loans. + References No definition available. + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524 + Details
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