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Goodwill and Other Intangible Assets - Components (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Goodwill |  |  |  |
Carrying Amount of Assets | $ 15,065 | $ 14,777 |  |
Net Carrying Amount | 15,065 | 14,777 | $ 14,782 | $ 14,653
Other intangible assets: |  |  |  |
Carrying Amount of Assets | 540 | 342 |  |
Accumulated Amortization | (230) | (183) |  |
Net Carrying Amount | 310 | 159 |  |
Total goodwill and other intangible assets |  |  |  |
Carrying Amount of Assets | 15,605 | 15,119 |  |
Net Carrying Amount | 15,375 | 14,936 |  |
Commercial MSRs |  |  |  |
Carrying Amount of Assets | 653 | 660 |  |
Accumulated Amortization | (263) | (223) |  |
Net Carrying Amount | $ 390 | $ 437 |  |
Weighted Average Remaining Amortization Period | 6 years 10 months 24 days | 7 years 3 months 18 days |  |
Amortization expense for amortizable intangible assets | $ 88 | $ 93 |  |
Purchased credit card relationship (“PCCR”) intangibles |  |  |  |
Other intangible assets: |  |  |  |
Carrying Amount of Assets | 369 | 147 |  |
Accumulated Amortization | (96) | (26) |  |
Net Carrying Amount | $ 273 | $ 121 |  |
Commercial MSRs |  |  |  |
Weighted Average Remaining Amortization Period | 7 years 1 month 6 days | 7 years 9 months 18 days |  |
Other |  |  |  |
Other intangible assets: |  |  |  |
Carrying Amount of Assets | $ 171 | $ 195 |  |
Accumulated Amortization | (134) | (157) |  |
Net Carrying Amount | $ 37 | $ 38 |  |
Commercial MSRs |  |  |  |
Weighted Average Remaining Amortization Period | 5 years 8 months 12 days | 5 years 4 months 24 days |  |

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