DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND ACCOUNTING POLICIES - Schedule of Business Acquisition, Pro Forma Information Combined Results of Operations (Details) - SHUSA - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Business Combination [Line Items] | ||||
| Net interest income | $ 2,266 | $ 2,215 | $ 6,660 | $ 6,518 |
| Non-interest income | 740 | 975 | 2,559 | 2,911 |
| Net income | $ 248 | $ 705 | $ 1,721 | $ 2,033 |
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- Definition Business Combination, Pro Forma Information, Pro Forma, Interest Income (Expense), Operating No definition available.
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- Definition Business Combination, Pro Forma Information, Pro Forma, Noninterest Income No definition available.
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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, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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