Service Fees and Other Revenue and Other Expenses (Details 1) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Service Fees and Other Revenue and Other Expenses [Abstract] | ||||
| Data processing and equipment | $ 651 | $ 613 | $ 1,874 | $ 1,772 |
| Professional services | 500 | 490 | 1,473 | 1,351 |
| Net unrealized and realized losses (gains) on Amex Ventures investments | 47 | (142) | 68 | (773) |
| Other | 376 | 257 | 1,008 | 745 |
| Total Other expenses | $ 1,574 | $ 1,218 | $ 4,423 | $ 3,095 |