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Goodwill and Other Intangible Assets - Goodwill Business Segments (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | $ 14,777 | $ 14,782 | $ 14,653
Acquisitions | 273 |  | 130
Other adjustments | 15 | (5) | (1)
Goodwill, ending balance | 15,065 | 14,777 | 14,782
Credit Card |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 5,078 | 5,087 | 5,088
Acquisitions | 273 |  | 0
Other adjustments | 15 | (9) | (1)
Goodwill, ending balance | 5,366 | 5,078 | 5,087
Consumer Banking |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 4,645 | 4,645 | 4,645
Acquisitions | 0 |  | 0
Other adjustments | 0 | 0 | 0
Goodwill, ending balance | 4,645 | 4,645 | 4,645
Commercial Banking |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 5,054 | 5,050 | 4,920
Acquisitions | 0 |  | 130
Other adjustments | 0 | 4 | 0
Goodwill, ending balance | $ 5,054 | $ 5,054 | $ 5,050

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