XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.25.3

Loans And The Allowance For Credit Losses (Analysis Of The Allowance For Credit Losses By Portfolio Segment) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Allowance for loan losses, beginning of period | $ 1,612 | $ 1,621 | $ 1,613 | $ 1,576
Provision for loan losses | 104 | 103 | 339 | 370
Loan Losses: |  |  |  |
Charge-offs | (160) | (143) | (438) | (407)
Recoveries | 25 | 26 | 67 | 68
Net loan losses | (135) | (117) | (371) | (339)
Allowance for loan losses, end of period | 1,581 | 1,607 | 1,581 | 1,607
Reserve For Unfunded Credit Commitments [Roll Forward] |  |  |  |
Reserve for unfunded credit commitments, beginning of year | 131 | 111 | 116 | 124
Provision (credit) for unfunded credit losses | 1 | 10 | 16 | (3)
Reserve for unfunded credit commitments, end of year | 132 | 121 | 132 | 121
Allowance for credit losses | 1,713 | 1,728 | 1,713 | 1,728
Commercial |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Allowance for loan losses, beginning of period | 747 | 736 | 743 | 722
Provision for loan losses | 86 | 47 | 197 | 166
Loan Losses: |  |  |  |
Charge-offs | (58) | (71) | (187) | (194)
Recoveries | 11 | 15 | 33 | 33
Net loan losses | (47) | (56) | (154) | (161)
Allowance for loan losses, end of period | 786 | 727 | 786 | 727
Reserve For Unfunded Credit Commitments [Roll Forward] |  |  |  |
Reserve for unfunded credit commitments, beginning of year | 99 | 85 | 91 | 92
Provision (credit) for unfunded credit losses | 3 | 8 | 11 | 1
Reserve for unfunded credit commitments, end of year | 102 | 93 | 102 | 93
Allowance for credit losses | 888 | 820 | 888 | 820
Investor Real Estate |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Allowance for loan losses, beginning of period | 234 | 233 | 240 | 192
Provision for loan losses | (47) | 10 | (29) | 54
Loan Losses: |  |  |  |
Charge-offs | (34) | (12) | (58) | (17)
Recoveries | 2 | 0 | 2 | 2
Net loan losses | (32) | (12) | (56) | (15)
Allowance for loan losses, end of period | 155 | 231 | 155 | 231
Reserve For Unfunded Credit Commitments [Roll Forward] |  |  |  |
Reserve for unfunded credit commitments, beginning of year | 13 | 8 | 7 | 13
Provision (credit) for unfunded credit losses | (3) | 2 | 3 | (3)
Reserve for unfunded credit commitments, end of year | 10 | 10 | 10 | 10
Allowance for credit losses | 165 | 241 | 165 | 241
Consumer |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |
Allowance for loan losses, beginning of period | 631 | 652 | 630 | 662
Provision for loan losses | 65 | 46 | 171 | 150
Loan Losses: |  |  |  |
Charge-offs | (68) | (60) | (193) | (196)
Recoveries | 12 | 11 | 32 | 33
Net loan losses | (56) | (49) | (161) | (163)
Allowance for loan losses, end of period | 640 | 649 | 640 | 649
Reserve For Unfunded Credit Commitments [Roll Forward] |  |  |  |
Reserve for unfunded credit commitments, beginning of year | 19 | 18 | 18 | 19
Provision (credit) for unfunded credit losses | 1 | 0 | 2 | (1)
Reserve for unfunded credit commitments, end of year | 20 | 18 | 20 | 18
Allowance for credit losses | $ 660 | $ 667 | $ 660 | $ 667

X
- Definition Financing Receivable, Allowance for Credit Loss, Including Unfunded Credit Commitments Excluding Accrued Interest + References No definition available. + Details
Name: | rf_FinancingReceivableAllowanceForCreditLossIncludingUnfundedCreditCommitmentsExcludingAccruedInterest
Namespace Prefix: | rf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Provision for unfunded credit commitments + References No definition available. + Details
Name: | rf_ProvisionForBenefitFromUnfundedCreditCommitments
Namespace Prefix: | rf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reserve For Unfunded Credit Commitments + References No definition available. + Details
Name: | rf_ReserveForUnfundedCreditCommitments
Namespace Prefix: | rf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reserve For Unfunded Credit Commitments [Roll Forward] + References No definition available. + Details
Name: | rf_ReserveForUnfundedCreditCommitmentsRollForward
Namespace Prefix: | rf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-22 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=rf_TotalInvestorRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |