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Goodwill and Intangible Assets - Goodwill Business Segments (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2018
Goodwill [Roll Forward] |  |  |  |
Goodwill | $ 14,782 | $ 14,653 | $ 14,653 | $ 14,544
Acquisitions | 130 | 107 |  |
Reductions in goodwill related to divestitures |  | (1) |  |
Goodwill, Other Increase (Decrease) | (1) | 3 |  |
Credit Card |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 5,087 | 5,088 | 5,088 | 5,060
Acquisitions | 0 | 25 |  |
Reductions in goodwill related to divestitures |  | 0 |  |
Goodwill, Other Increase (Decrease) | (1) | 3 |  |
Consumer Banking |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 4,645 | 4,645 | 4,645 | 4,600
Acquisitions | 0 | 46 |  |
Reductions in goodwill related to divestitures |  | (1) |  |
Goodwill, Other Increase (Decrease) | 0 | 0 |  |
Commercial Banking |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 5,050 | 4,920 | $ 4,920 | $ 4,884
Acquisitions | 130 | 36 |  |
Reductions in goodwill related to divestitures |  | 0 |  |
Goodwill, Other Increase (Decrease) | $ 0 | $ 0 |  |

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