Outstanding Loans and Leases and Allowance for Credit Losses - Credit Quality Indicators, Narrative (Details) - USD ($) $ in Billions |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Receivables [Abstract] | ||
| Commercial reservable criticized utilized exposure, amount | $ 38.7 | $ 11.5 |
| Commercial reservable criticized utilized exposure, percent | 7.31% | 2.09% |
| X | ||||||||||
- Definition Commercial Reservable Criticized Utilized Exposure, Amount No definition available.
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| X | ||||||||||
- Definition Commercial Reservable Criticized Utilized Exposure, Percent No definition available.
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| X | ||||||||||
- References No definition available.
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