Intangible Assets - Schedule Intangible Assets (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 721 | $ 726 |
| Accumulated Amortization | (340) | (238) |
| Net Carrying Value | 381 | 488 |
| Core deposit intangible | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 700 | 700 |
| Accumulated Amortization | (332) | (229) |
| Net Carrying Value | 368 | 471 |
| Other intangible assets | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 21 | 26 |
| Accumulated Amortization | (8) | (9) |
| Net Carrying Value | $ 13 | $ 17 |
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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 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/exampleRef
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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