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Loans and Leases - Schedule Of Troubled Debt Restructurings Within The Previous 12 Months (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) loan | Jun. 30, 2020 USD ($) loan | Jun. 30, 2021 USD ($) loan | Jun. 30, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 12 | 15 | 23 | 31
Recorded Investment | $ | $ 11 | $ 2 | $ 14 | $ 4
Consumer | Consumer Real Estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 4 | 8 | 8 | 17
Recorded Investment | $ | $ 1 | $ 2 | $ 3 | $ 4
Consumer | Credit Card and Other |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 1 | 7 | 1 | 14
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 0
C&I | Commercial | Commercial and industrial |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 5 | 0 | 12 | 0
Recorded Investment | $ | $ 1 | $ 0 | $ 2 | $ 0
CRE | Commercial | Consumer Real Estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 2 | 0 | 2 | 0
Recorded Investment | $ | $ 9 | $ 0 | $ 9 | $ 0
HELOC | Consumer | Consumer Real Estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 0 | 3 | 1 | 7
Recorded Investment | $ | $ 0 | $ 1 | $ 0 | $ 2
Real estate installment loans | Consumer | Consumer Real Estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | loan | 4 | 5 | 7 | 10
Recorded Investment | $ | $ 1 | $ 1 | $ 3 | $ 2

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- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524 + Details
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