XML 100 R73.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Loans and Leases - Accruing And Non-Accruing Loans By Class (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | $ 54,436 | $ 57,730
Total Accruing | 54,584 | 57,847
Current, Non-Accruing | 182 | 205
Total Non-Accruing | 275 | 386
Loans and leases | 54,859 | 58,232
30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 108 | 100
Past Due, Non-Accruing | 7 | 66
90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 40 | 17
Past Due, Non-Accruing | 86 | 115
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 31,068 | 33,104
Commercial | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 30,885 | 32,945
Total Accruing | 30,943 | 32,960
Current, Non-Accruing | 97 | 88
Total Non-Accruing | 125 | 144
Loans and leases | 31,068 | 33,104
Commercial | Commercial and industrial | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 53 | 15
Past Due, Non-Accruing | 1 | 12
Commercial | Commercial and industrial | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 5 | 0
Past Due, Non-Accruing | 27 | 44
Commercial | Commercial and industrial | C&I (a) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 26,367 | 27,541
Total Accruing | 26,425 | 27,556
Current, Non-Accruing | 97 | 88
Total Non-Accruing | 125 | 144
Loans and leases | 26,550 | 27,700
Nonaccrual, no allowance | 99 | 101
Commercial | Commercial and industrial | C&I (a) | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 53 | 15
Past Due, Non-Accruing | 1 | 12
Commercial | Commercial and industrial | C&I (a) | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 5 | 0
Past Due, Non-Accruing | 27 | 44
Commercial | Commercial and industrial | Loans to mortgage companies |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 4,518 | 5,404
Total Accruing | 4,518 | 5,404
Current, Non-Accruing | 0 | 0
Total Non-Accruing | 0 | 0
Loans and leases | 4,518 | 5,404
Commercial | Commercial and industrial | Loans to mortgage companies | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 0 | 0
Past Due, Non-Accruing | 0 | 0
Commercial | Commercial and industrial | Loans to mortgage companies | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 0 | 0
Past Due, Non-Accruing | 0 | 0
Commercial | Commercial and industrial | CRE (b) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual, no allowance | 5 |
Commercial | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 12,109 | 12,275
Commercial | Commercial real estate | CRE (b) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 12,087 | 12,194
Total Accruing | 12,100 | 12,217
Current, Non-Accruing | 6 | 10
Total Non-Accruing | 9 | 58
Loans and leases | 12,109 | 12,275
Commercial | Commercial real estate | CRE (b) | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 13 | 23
Past Due, Non-Accruing | 1 | 42
Commercial | Commercial real estate | CRE (b) | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 0 | 0
Past Due, Non-Accruing | 2 | 6
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 10,772 | 11,725
Consumer | Consumer real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 10,564 | 11,474
Total Accruing | 10,634 | 11,543
Current, Non-Accruing | 78 | 106
Total Non-Accruing | 138 | 182
Loans and leases | 10,772 | 11,725
Consumer | Consumer real estate | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 37 | 53
Past Due, Non-Accruing | 5 | 12
Consumer | Consumer real estate | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 33 | 16
Past Due, Non-Accruing | 55 | 64
Consumer | Consumer real estate | HELOC (c) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 1,906 | 2,336
Total Accruing | 1,919 | 2,360
Current, Non-Accruing | 34 | 43
Total Non-Accruing | 45 | 60
Loans and leases | 1,964 | 2,420
Nonaccrual, no allowance | 7 |
Consumer | Consumer real estate | HELOC (c) | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 7 | 13
Past Due, Non-Accruing | 2 | 3
Consumer | Consumer real estate | HELOC (c) | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 6 | 11
Past Due, Non-Accruing | 9 | 14
Consumer | Consumer real estate | Real estate installment loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 8,658 | 9,138
Total Accruing | 8,715 | 9,183
Current, Non-Accruing | 44 | 63
Total Non-Accruing | 93 | 122
Loans and leases | 8,808 | 9,305
Nonaccrual, no allowance | 50 |
Consumer | Consumer real estate | Real estate installment loans | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 30 | 40
Past Due, Non-Accruing | 3 | 9
Consumer | Consumer real estate | Real estate installment loans | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 27 | 5
Past Due, Non-Accruing | 46 | 50
Consumer | Credit Card and Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 900 | 1,117
Total Accruing | 907 | 1,127
Current, Non-Accruing | 1 | 1
Total Non-Accruing | 3 | 2
Loans and leases | 910 | 1,128
Consumer | Credit Card and Other | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 5 | 9
Past Due, Non-Accruing | 0 | 0
Consumer | Credit Card and Other | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 2 | 1
Past Due, Non-Accruing | 2 | 1
Consumer | Credit Card and Other | Credit card |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 292 | 279
Total Accruing | 296 | 283
Current, Non-Accruing | 0 | 0
Total Non-Accruing | 0 | 0
Loans and leases | 296 | 283
Consumer | Credit Card and Other | Credit card | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 2 | 3
Past Due, Non-Accruing | 0 | 0
Consumer | Credit Card and Other | Credit card | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 2 | 1
Past Due, Non-Accruing | 0 | 0
Consumer | Credit Card and Other | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current, Accruing | 608 | 838
Total Accruing | 611 | 844
Current, Non-Accruing | 1 | 1
Total Non-Accruing | 3 | 2
Loans and leases | 614 | 845
Consumer | Credit Card and Other | Other | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 3 | 6
Past Due, Non-Accruing | 0 | 0
Consumer | Credit Card and Other | Other | 90+ Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due, Accruing | 0 | 0
Past Due, Non-Accruing | $ 2 | $ 1

X
- Definition Financing Receivable, Accruing + References No definition available. + Details
Name: | fhn_FinancingReceivableAccruing
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable, Not Past Due, Accruing + References No definition available. + Details
Name: | fhn_FinancingReceivableNotPastDueAccruing
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable, Not Past Due, Non-Accruing + References No definition available. + Details
Name: | fhn_FinancingReceivableNotPastDueNonAccruing
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable, Past Due, Accruing + References No definition available. + Details
Name: | fhn_FinancingReceivablePastDueAccruing
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable, Past Due, Non-Accruing + References No definition available. + Details
Name: | fhn_FinancingReceivablePastDueNonAccruing
Namespace Prefix: | fhn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount excluding accrued interest, before allowance for credit loss, of financing receivable. + 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 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status with no allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableNonaccrualNoAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=fhn_FinancingReceivables30To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fhn_CommercialFinancialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=fhn_GeneralCIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=fhn_LoansToMortgageCompaniesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=fhn_CommercialRealEstate1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
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: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fhn_ConsumerRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=fhn_REInstallmentLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fhn_CreditCardAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=fhn_CreditCardClassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fhn_SubClassofFinancingReceivableAxis=fhn_OtherConsumerLoansClassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |