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Loans, Leases, and Allowance for Credit Losses (Summary of Selected Information on TDRs) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types $ 311 $ 153
Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 18 13
Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 11
Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 12 14
Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 39 21
Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 116 22
Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 122 72
Accruing    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 198 78
Accruing | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 7
Accruing | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 7
Accruing | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 11
Accruing | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 20 1
Accruing | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 103 13
Accruing | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 52 39
Accruing | Commercial    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 29 31
Accruing | Commercial | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 5 4
Accruing | Commercial | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 3
Accruing | Commercial | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 0
Accruing | Commercial | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 7 12
Accruing | Commercial | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 12 12
Accruing | Commercial | Commercial and industrial    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 7 16
Accruing | Commercial | Commercial and industrial | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Accruing | Commercial | Commercial and industrial | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 2
Accruing | Commercial | Commercial and industrial | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial | Commercial and industrial | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial | Commercial and industrial | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 8
Accruing | Commercial | Commercial and industrial | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 5
Accruing | Commercial | Owner-occupied    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 22 15
Accruing | Commercial | Owner-occupied | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 5 3
Accruing | Commercial | Owner-occupied | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 1
Accruing | Commercial | Owner-occupied | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial | Owner-occupied | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 0
Accruing | Commercial | Owner-occupied | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 4
Accruing | Commercial | Owner-occupied | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 8 7
Accruing | Commercial real estate    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 134 6
Accruing | Commercial real estate | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 2
Accruing | Commercial real estate | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 16 1
Accruing | Commercial real estate | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 94 0
Accruing | Commercial real estate | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 23 3
Accruing | Commercial real estate | Construction and land development    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Construction and land development | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Construction and land development | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Construction and land development | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Construction and land development | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Construction and land development | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Construction and land development | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Term    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 134 6
Accruing | Commercial real estate | Term | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 2
Accruing | Commercial real estate | Term | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Term | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Commercial real estate | Term | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 16 1
Accruing | Commercial real estate | Term | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 94 0
Accruing | Commercial real estate | Term | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 23 3
Accruing | Consumer    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 35 41
Accruing | Consumer | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 1
Accruing | Consumer | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 4
Accruing | Consumer | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 11
Accruing | Consumer | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 1
Accruing | Consumer | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 17 24
Accruing | Consumer | Home equity credit line    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 11
Accruing | Consumer | Home equity credit line | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Home equity credit line | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 2
Accruing | Consumer | Home equity credit line | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 7 7
Accruing | Consumer | Home equity credit line | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Home equity credit line | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Home equity credit line | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 2
Accruing | Consumer | 1-4 family residential    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 25 29
Accruing | Consumer | 1-4 family residential | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 4 1
Accruing | Consumer | 1-4 family residential | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 1
Accruing | Consumer | 1-4 family residential | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 4
Accruing | Consumer | 1-4 family residential | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | 1-4 family residential | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 1
Accruing | Consumer | 1-4 family residential | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 15 22
Accruing | Consumer | Construction and other consumer real estate    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Accruing | Consumer | Construction and other consumer real estate | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Construction and other consumer real estate | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Accruing | Consumer | Construction and other consumer real estate | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Construction and other consumer real estate | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Construction and other consumer real estate | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Accruing | Consumer | Construction and other consumer real estate | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 113 75
Nonaccruing | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 8 6
Nonaccruing | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 4
Nonaccruing | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 3
Nonaccruing | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 19 20
Nonaccruing | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 13 9
Nonaccruing | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 70 33
Nonaccruing | Commercial    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 83 60
Nonaccruing | Commercial | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 5 5
Nonaccruing | Commercial | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 4
Nonaccruing | Commercial | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 6 20
Nonaccruing | Commercial | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 5
Nonaccruing | Commercial | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 62 26
Nonaccruing | Commercial | Commercial and industrial    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 65 50
Nonaccruing | Commercial | Commercial and industrial | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Commercial and industrial | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 4
Nonaccruing | Commercial | Commercial and industrial | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Commercial and industrial | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 20
Nonaccruing | Commercial | Commercial and industrial | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 4
Nonaccruing | Commercial | Commercial and industrial | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 52 22
Nonaccruing | Commercial | Owner-occupied    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 18 10
Nonaccruing | Commercial | Owner-occupied | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 5 5
Nonaccruing | Commercial | Owner-occupied | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Owner-occupied | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Owner-occupied | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 0
Nonaccruing | Commercial | Owner-occupied | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Nonaccruing | Commercial | Owner-occupied | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 4
Nonaccruing | Commercial | Municipal    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Municipal | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Municipal | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Municipal | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Municipal | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Municipal | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial | Municipal | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 20 7
Nonaccruing | Commercial real estate | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 1
Nonaccruing | Commercial real estate | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 13 0
Nonaccruing | Commercial real estate | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 3
Nonaccruing | Commercial real estate | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 3
Nonaccruing | Commercial real estate | Construction and land development    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Construction and land development | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Construction and land development | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Construction and land development | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Construction and land development | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Construction and land development | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Construction and land development | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Term    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 20 7
Nonaccruing | Commercial real estate | Term | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 1
Nonaccruing | Commercial real estate | Term | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Term | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Commercial real estate | Term | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 13 0
Nonaccruing | Commercial real estate | Term | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 3 3
Nonaccruing | Commercial real estate | Term | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 3
Nonaccruing | Consumer    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 10 8
Nonaccruing | Consumer | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 0
Nonaccruing | Consumer | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 0
Nonaccruing | Consumer | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 3
Nonaccruing | Consumer | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Nonaccruing | Consumer | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 6 4
Nonaccruing | Consumer | Home equity credit line    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 2
Nonaccruing | Consumer | Home equity credit line | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Home equity credit line | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Home equity credit line | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 2 2
Nonaccruing | Consumer | Home equity credit line | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Home equity credit line | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Home equity credit line | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | 1-4 family residential    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 8 6
Nonaccruing | Consumer | 1-4 family residential | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 0
Nonaccruing | Consumer | 1-4 family residential | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 1 0
Nonaccruing | Consumer | 1-4 family residential | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Nonaccruing | Consumer | 1-4 family residential | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | 1-4 family residential | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 1
Nonaccruing | Consumer | 1-4 family residential | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 6 4
Nonaccruing | Consumer | Construction and other consumer real estate    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Construction and other consumer real estate | Interest rate below market    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Construction and other consumer real estate | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Construction and other consumer real estate | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Construction and other consumer real estate | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Construction and other consumer real estate | Other    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types 0 0
Nonaccruing | Consumer | Construction and other consumer real estate | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Recorded investment resulting from the following modification types $ 0 $ 0