Loans and Leases - Schedule of Troubled Debt Restructuring Modifications (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) loan	Jun. 30, 2021 USD ($) loan	Jun. 30, 2022 USD ($) loan	Jun. 30, 2021 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	90	121	171	250
Amortized Cost at Period End | $	$ 15	$ 22	$ 38	$ 44
Interest only
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	6	4	8	10
Amortized Cost at Period End | $	$ 6	$ 3	$ 6	$ 10
Loan term extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	41	41	76	66
Amortized Cost at Period End | $	$ 4	$ 4	$ 23	$ 8
Below market rates
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	25	37	45	90
Amortized Cost at Period End | $	$ 3	$ 8	$ 5	$ 16
Discharge from bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	18	39	42	84
Amortized Cost at Period End | $	$ 2	$ 7	$ 4	$ 10