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Loans and Leases - Schedule of Troubled Debt Restructuring Modifications (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) loan | Sep. 30, 2021 USD ($) loan | Sep. 30, 2022 USD ($) loan | Sep. 30, 2021 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Loans | loan | 93 | 116 | 263 | 387
Amortized Cost at Period End | $ | $ 67 | $ 22 | $ 100 | $ 68
Interest only |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Loans | loan | 5 | 7 | 13 | 17
Amortized Cost at Period End | $ | $ 31 | $ 10 | $ 37 | $ 20
Loan term extension |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Loans | loan | 35 | 41 | 110 | 112
Amortized Cost at Period End | $ | $ 30 | $ 6 | $ 51 | $ 15
Below market rates |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Loans | loan | 17 | 47 | 62 | 148
Amortized Cost at Period End | $ | $ 4 | $ 3 | $ 8 | $ 21
Discharge from bankruptcy |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Loans | loan | 36 | 21 | 78 | 110
Amortized Cost at Period End | $ | $ 2 | $ 3 | $ 4 | $ 12

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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