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Loans and Leases - Financial Effect of TDRs (Details) - Mortgage Loans - Commercial real estate $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) loan
Financing Receivable, Modified [Line Items]
Number of Loans | loan	2
Pre- Modification Recorded Investment	$ 22
Post- Modification Recorded Investment	$ 19
Interest rate reduction, weighted-average contractual interest rate, prior to modification	6.00%
Interest rate reduction, weighted-average contractual interest rate, after modification	4.02%
Charge- off Amount	$ 3
Capitalized Interest	$ 0

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