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Loans and Leases - Summary of Financial Effects of Troubled Debt Restructurings (Details) - Commercial Real Estate $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 USD ($) Investment | Sep. 30, 2022 USD ($) Investment | Sep. 30, 2021 USD ($) Investment
Financing Receivable Modifications [Line Items] |  |  |  |
Number of loans classified as a non-accrual TDRs | Investment |  | 2 | 2 | 2
Pre-Modification Recorded Investment |  | $ 4 | $ 22 | $ 4
Post-Modification Recorded Investment |  | $ 4 | $ 19 | $ 4
Weighted Average Interest Rate, Pre-Modification | 0.00% | 6.00% | 6.00% | 6.00%
Weighted Average Interest Rate, Post-Modification | 0.00% | 3.55% | 4.02% | 3.55%
Trouble debt restructuring, charge-off amount |  |  | $ 3 |

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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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