Loans (Details 9)	12 Months Ended
	Dec. 31, 2022
Home equity lines of credit
Financing Receivable Recorded Investment [Line Items]
Methodology	Cohort
Loss Drivers	Credit Loss History
Residential real estate | Residential real estate, 1-4 family residential | 1st Liens
Financing Receivable Recorded Investment [Line Items]
Methodology	Cohort
Loss Drivers	Credit Loss History
Residential real estate | Residential real estate, 1-4 family residential | 2nd Liens
Financing Receivable Recorded Investment [Line Items]
Methodology	Cohort
Loss Drivers	Credit Loss History
Consumer | Consumer Finance Cash Reserve Loan
Financing Receivable Recorded Investment [Line Items]
Methodology	Cohort
Loss Drivers	Credit Loss History
Consumer | Consumer, Direct
Financing Receivable Recorded Investment [Line Items]
Methodology	Cohort
Loss Drivers	Credit Loss History
Consumer | Consumer, Indirect
Financing Receivable Recorded Investment [Line Items]
Methodology	Cohort
Loss Drivers	Credit Loss History
Commercial | Commercial, Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial | Commercial, Agricultural
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial | Commercial, municipal
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial real estate | Commercial real estate, multifamily
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial real estate | Commercial real estate, Owner occupied
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial real estate | Commercial real estate, Non-owner occupied
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial real estate | Commercial real estate, Farmland
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History
Commercial real estate | Commercial real estate, construction
Financing Receivable Recorded Investment [Line Items]
Methodology	PD/LGD
Loss Drivers	Credit Loss History