Loans and Leases - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($) Investment	Dec. 31, 2021 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Outstanding loans to Executive officers, directors, principal shareholders, related interest and parties	$ 6	$ 6
CARES act of 2020 aid, election description	the Company made the election to deem that loan modifications do not result in TDRs if they are (1) related to the novel coronavirus disease (“COVID-19”); (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. This includes short-term (e.g., up to six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. In December 2020, Congress amended the CARES Act through the Consolidated Appropriation Act of 2021, which provided additional COVID-19 relief to American families and businesses, including extending TDR relief under the CARES Act until the earlier of December 31, 2021 or 60 days following the termination of the national emergency.
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Number of financing receivable contracts modified as TDRs within previous 12 months, with payment default | Investment	0
Financing Receivable Troubled Debt Restructurings Rate Reductions
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, loans in process of foreclosure	$ 45