Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Details) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | $ 3,890 | $ 3,911 |
| Accumulated Amortization | (2,417) | (2,361) |
| Net Carrying Amount | 1,473 | 1,550 |
| CDI | ||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | 2,427 | 2,453 |
| Accumulated Amortization | (1,854) | (1,837) |
| Net Carrying Amount | 573 | 616 |
| Other, primarily client relationship intangibles | ||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | ||
| Gross Carrying Amount | 1,463 | 1,458 |
| Accumulated Amortization | (563) | (524) |
| Net Carrying Amount | $ 900 | $ 934 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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