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LOANS AND LEASES - Loans Held For Sale (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans held for sale, at fair value | $ 2,911 | $ 1,946
Other loans held for sale | 350 | 1,384
Residential loans held for sale |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans held for sale, at fair value | 2,708 | 1,778
Other loans held for sale | 0 | 1,101
Commercial loans held for sale |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans held for sale, at fair value | 203 | 168
Other loans held for sale | $ 350 | $ 283

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- Definition The amount of other loans receivable that will be sold to other entities. + References No definition available. + Details
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Namespace Prefix: | cfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition 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. + References No definition available. + Details
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- Definition The face amount of loans that will be sold to other entities. + 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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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |