Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Intangible Asset, Finite-Lived, Acquired [Line Items] | ||
| Gross Carrying Amount | $ 3,590 | $ 3,679 |
| Accumulated Amortization | (2,523) | (2,423) |
| Net Carrying Amount | 1,067 | 1,256 |
| CDI | ||
| Intangible Asset, Finite-Lived, Acquired [Line Items] | ||
| Gross Carrying Amount | 2,164 | 2,242 |
| Accumulated Amortization | (1,823) | (1,796) |
| Net Carrying Amount | 341 | 446 |
| Other, primarily client relationship intangibles | ||
| Intangible Asset, Finite-Lived, Acquired [Line Items] | ||
| Gross Carrying Amount | 1,426 | 1,437 |
| Accumulated Amortization | (700) | (627) |
| Net Carrying Amount | $ 726 | $ 810 |
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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 Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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