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Commitments (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments and Guarantees [Abstract] |
Commitments to Extend Credit and Other Commitments | The following table presents our outstanding commitments to extend credit along with other commitments as of December 31, 2020 and 2019. Table 76: Commitments to Extend Credit and Other Commitments
In millions |  | December 31 2020 |  | December 31 2019 |
Commitments to extend credit |  |  |  |  |
Total commercial lending |  | $ | 153,089 |  |  | $ | 131,762 |  |
Home equity lines of credit |  | 16,626 |  |  | 16,803 |  |
Credit card |  | 31,019 |  |  | 30,862 |  |
Other |  | 7,087 |  |  | 6,162 |  |
Total commitments to extend credit |  | 207,821 |  |  | 185,589 |  |
Net outstanding standby letters of credit (a) |  | 9,053 |  |  | 9,843 |  |
Reinsurance agreements (b) |  |  |  | 1,393 |  |
Standby bond purchase agreements (c) |  | 1,448 |  |  | 1,295 |  |
Other commitments (d) |  | 2,046 |  |  | 1,498 |  |
Total commitments to extend credit and other commitments |  | $ | 220,368 |  |  | $ | 199,618 |  |
(a)Net outstanding standby letters of credit include $3.8 billion and $4.1 billion at December 31, 2020 and 2019, which support remarketing programs. (b)Represents aggregate maximum exposure up to the specified limits of the reinsurance contracts provided by our wholly-owned captive insurance subsidiary. These amounts reflect estimates based on availability of financial information from insurance carriers. As of December 31, 2020, the aggregate maximum exposure amount for reinsurance agreements was zero as all underlying insurance policies were cancelled and/or sold. (c)We enter into standby bond purchase agreements to support municipal bond obligations. (d)Includes $1.1 billion and $0.6 billion related to investments in qualified affordable housing projects at December 31, 2020 and 2019, respectively.

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