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Commitments, Contingencies, Guarantees, and Others (Tables) | 12 Months Ended
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Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Letter of Credit and Other Loan Commitments | The following table presents the contractual amount and carrying value of our unfunded lending commitments as of December 31, 2019 and 2018. The carrying value represents our reserve and deferred revenue on legally binding commitments. Table 18.1: Unfunded Lending Commitments
|  | Contractual Amount |  | Carrying Value
(Dollars in millions) |  | December 31, 2019 |  | December 31, 2018 |  | December 31, 2019 |  | December 31, 2018
Credit card lines |  | $ | 363,446 |  |  | $ | 346,186 |  |  | N/A |  |  | N/A |
Other loan commitments(1) |  | 36,454 |  |  | 34,449 |  |  | $ | 110 |  |  | $ | 95 |
Standby letters of credit and commercial letters of credit(2) |  | 1,574 |  |  | 1,792 |  |  | 27 |  |  | 29 |
Total unfunded lending commitments |  | $ | 401,474 |  |  | $ | 382,427 |  |  | $ | 137 |  |  | $ | 124 |
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(1) | Includes $1.6 billion and $1.3 billion of advised lines of credit as of December 31, 2019 and 2018, respectively.
(2) These financial guarantees have expiration dates ranging from 2020 to 2022 as of December 31, 2019.

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