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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

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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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