XML 150 R132.htm IDEA: XBRL DOCUMENT v3.24.0.1

Revenue Recognition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Corporate Bank [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	$ 370	$ 373	$ 389
Corporate Bank [Member] | Asset Management Income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	193	177	160
Corporate Bank [Member] | Card and ATM fees
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	45	45	41
Corporate Bank [Member] | Capital markets income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	92	108	149
Corporate Bank [Member] | Mortgage income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Investment Services Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Commercial Credit Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Insurance Proceeds
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax		0
Corporate Bank [Member] | Securities gains, net [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Market value adjustments on employee benefit assets - other [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Corporate Bank [Member] | Valuation Gain on Equity Investments [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax			0
Corporate Bank [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	40	43	39
Consumer Bank [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	893	966	983
Consumer Bank [Member] | Asset Management Income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	396	458	480
Consumer Bank [Member] | Card and ATM fees
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	446	457	448
Consumer Bank [Member] | Capital markets income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Mortgage income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Investment Services Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Commercial Credit Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Insurance Proceeds
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax		0
Consumer Bank [Member] | Securities gains, net [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Market value adjustments on employee benefit assets - other [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Consumer Bank [Member] | Valuation Gain on Equity Investments [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax			0
Consumer Bank [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	51	51	55
Wealth Management [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	457	425	389
Wealth Management [Member] | Asset Management Income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	313	297	278
Wealth Management [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	3	3	3
Wealth Management [Member] | Card and ATM fees
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	1	0	0
Wealth Management [Member] | Capital markets income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Wealth Management [Member] | Mortgage income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Wealth Management [Member] | Investment Services Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	138	122	104
Wealth Management [Member] | Commercial Credit Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Wealth Management [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Wealth Management [Member] | Insurance Proceeds
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax		0
Wealth Management [Member] | Securities gains, net [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Wealth Management [Member] | Market value adjustments on employee benefit assets - other [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Wealth Management [Member] | Valuation Gain on Equity Investments [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax			0
Wealth Management [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	2	3	4
Other Segment Revenue [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	2	2	2
Other Segment Revenue [Member] | Asset Management Income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	2	0
Other Segment Revenue [Member] | Card and ATM fees
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	1	0	(1)
Other Segment Revenue [Member] | Capital markets income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	1	0	0
Other Segment Revenue [Member] | Mortgage income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Investment Services Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Commercial Credit Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Insurance Proceeds
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax		0
Other Segment Revenue [Member] | Securities gains, net [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Market value adjustments on employee benefit assets - other [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Segment Revenue [Member] | Valuation Gain on Equity Investments [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax			0
Other Segment Revenue [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	3
Other Revenue - Not Impacted [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	534	663	761
Other Revenue - Not Impacted [Member] | Asset Management Income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Revenue - Not Impacted [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	1	5
Other Revenue - Not Impacted [Member] | Card and ATM fees
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	11	11	11
Other Revenue - Not Impacted [Member] | Capital markets income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	129	231	182
Other Revenue - Not Impacted [Member] | Mortgage income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	109	156	242
Other Revenue - Not Impacted [Member] | Investment Services Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	0	0	0
Other Revenue - Not Impacted [Member] | Commercial Credit Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	105	96	91
Other Revenue - Not Impacted [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	78	62	82
Other Revenue - Not Impacted [Member] | Insurance Proceeds
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax		50
Other Revenue - Not Impacted [Member] | Securities gains, net [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	(5)	(1)	3
Other Revenue - Not Impacted [Member] | Market value adjustments on employee benefit assets - other [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	15	(45)	20
Other Revenue - Not Impacted [Member] | Valuation Gain on Equity Investments [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax			3
Other Revenue - Not Impacted [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	92	102	122
Continuing Operations [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	2,256	2,429	2,524
Continuing Operations [Member] | Asset Management Income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	313	297	278
Continuing Operations [Member] | Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	592	641	648
Continuing Operations [Member] | Card and ATM fees
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	504	513	499
Continuing Operations [Member] | Capital markets income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	222	339	331
Continuing Operations [Member] | Mortgage income
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	109	156	242
Continuing Operations [Member] | Investment Services Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	138	122	104
Continuing Operations [Member] | Commercial Credit Fee Income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	105	96	91
Continuing Operations [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	78	62	82
Continuing Operations [Member] | Insurance Proceeds
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax		50
Continuing Operations [Member] | Securities gains, net [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	(5)	(1)	3
Continuing Operations [Member] | Market value adjustments on employee benefit assets - other [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	15	(45)	20
Continuing Operations [Member] | Valuation Gain on Equity Investments [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax			3
Continuing Operations [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
RevenueFromContractWithCustomerExcludingAssessedTax	$ 185	$ 199	$ 223

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-5

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

Reference 8: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479777/606-10-55-91

+ Details

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

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479941/924-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-30

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-4

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	rf_BusinessSegmentsAxis=rf_CorporateBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_AssetManagementIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_DepositAccountMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_CreditAndDebitCardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_CapitalMarketsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_MortgageBankingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_InvestmentAdviceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_BankownedlifeinsuranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_InsuranceProceedsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_SecuritiesgainslossesnetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_MarketvalueadjustmentsonemployeebenefitassetsotherMemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_GainOnEquityInvestmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=rf_OthermiscellaneousincomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	rf_BusinessSegmentsAxis=rf_ConsumerBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	rf_BusinessSegmentsAxis=rf_WealthManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	rf_BusinessSegmentsAxis=rf_OtherSegmentRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	rf_BusinessSegmentsAxis=rf_OtherRevenueNotImpactedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	rf_BusinessSegmentsAxis=us-gaap_SegmentContinuingOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: