LOANS AND LEASES - Troubled Debt Restructurings by Class of Loans (Detail) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($) contract
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	121
Pre-Modification Outstanding Recorded Investment	$ 13
Post- Modification Outstanding Recorded Investment	$ 12
Total commercial loans and leases
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	21
Pre-Modification Outstanding Recorded Investment	$ 3
Post- Modification Outstanding Recorded Investment	$ 2
Total commercial loans and leases \| Commercial real estate
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	12
Pre-Modification Outstanding Recorded Investment	$ 2
Post- Modification Outstanding Recorded Investment	$ 2
Total commercial loans and leases \| Commercial and industrial
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	9
Pre-Modification Outstanding Recorded Investment	$ 1
Post- Modification Outstanding Recorded Investment	$ 0
Total consumer loans
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	100
Pre-Modification Outstanding Recorded Investment	$ 10
Post- Modification Outstanding Recorded Investment	$ 10
Total consumer loans \| Direct installment
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	42
Pre-Modification Outstanding Recorded Investment	$ 2
Post- Modification Outstanding Recorded Investment	$ 2
Total consumer loans \| Residential mortgages
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	44
Pre-Modification Outstanding Recorded Investment	$ 7
Post- Modification Outstanding Recorded Investment	$ 7
Total consumer loans \| Consumer lines of credit
Financing Receivable, Modified [Line Items]
Number of Contracts \| contract	14
Pre-Modification Outstanding Recorded Investment	$ 1
Post- Modification Outstanding Recorded Investment	$ 1

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.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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