Loans and Leases - Schedule of Loans Charge-offs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 62	$ 33
Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	16
2021	10
2020	5
2019	2
2018 & Prior	15
Revolving	11
Revolving Converted to Term Loans	0
Total	59
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	55	28
Commercial | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	16
2021	10
2020	5
2019	2
2018 & Prior	13
Revolving	8
Revolving Converted to Term Loans	0
Total	54
Commercial | Non-owner occupied commercial mortgage | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
2018 & Prior	12
Revolving	0
Revolving Converted to Term Loans	0
Total	12
Commercial | Commercial and industrial | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	14
2021	9
2020	4
2019	2
2018 & Prior	1
Revolving	8
Revolving Converted to Term Loans	0
Total	38
Commercial | Leases | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	2
2021	1
2020	1
2019	0
2018 & Prior	0
Revolving	0
Revolving Converted to Term Loans	0
Total	4
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7	5
Consumer | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
2018 & Prior	2
Revolving	3
Revolving Converted to Term Loans	0
Total	5
Consumer | Residential mortgage | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
2018 & Prior	2
Revolving	0
Revolving Converted to Term Loans	0
Total	2
Consumer | Consumer other | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
2018 & Prior	0
Revolving	3
Revolving Converted to Term Loans	0
Total	3
SVB
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	$ 0
SVB | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
2018 & Prior	0
Revolving	0
Revolving Converted to Term Loans	0
Total	$ 0