XML 76 R58.htm IDEA: XBRL DOCUMENT v3.21.2

ALLOWANCE FOR CREDIT LOSSES, NONACCRUAL LOANS AND LEASES, AND CONCENTRATIONS OF CREDIT RISK - Loans with Indicators of High Credit Risk (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
High loan to value criteria (exceeds)	90.00%
Total	$ 121,463	$ 120,647
High loan-to-value
Financing Receivable, Credit Quality Indicator [Line Items]
Total	197	353
High loan-to-value | Residential Mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total	179	289
High loan-to-value | Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Total	18	64
High loan-to-value | Other Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
High loan-to-value | Education
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0
Interest-only
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,318	2,801
Interest-only | Residential Mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,317	2,801
Interest-only | Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Interest-only | Other Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Interest-only | Education
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1
Low introductory rate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	156	170
Low introductory rate | Residential Mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Low introductory rate | Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	0
Low introductory rate | Other Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Total	156	170
Low introductory rate | Education
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0
Multiple characteristics and other
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2
Multiple characteristics and other | Residential Mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2
Multiple characteristics and other | Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0
Multiple characteristics and other | Other Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0
Multiple characteristics and other | Education
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0
Credit risk, loans with increased credit exposure
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,673	3,324
Credit risk, loans with increased credit exposure | Residential Mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,498	3,090
Credit risk, loans with increased credit exposure | Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Total	18	64
Credit risk, loans with increased credit exposure | Other Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Total	156	$ 170
Credit risk, loans with increased credit exposure | Education
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 1

X

- Definition

An entity's internal risk assessment as having high risk defined as certain loans with outstanding balances exceeding a percentage of the value of underlying collateral.

+ References

No definition available.

+ Details

Name:	cfg_CreditRiskHighLoantoValueLoansPercentExceedingValueOfUnderlyingCollateral
Namespace Prefix:	cfg_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

+ Details

Name:	us-gaap_NotesReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=cfg_CreditRiskHighLoantovalueLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfg_HomeEquityLoanAndLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfg_ConsumerOtherRetailMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_StudentLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=cfg_CreditRiskInterestonlyandNegativeAmortizationResidentialMortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=cfg_CreditRiskLowIntroductoryRateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=cfg_CreditRiskMultipleIndicatorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=cfg_CreditRiskLoanProductswithIncreasedCreditExposureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: