DERIVATIVES - Effect of Derivative Instruments on Net Income and Stockholders' Equity (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Pretax net gains (losses) recognized in OCI | $ (246) | $ 113 | $ (415) | $ 397 |
| Income Statement Location [Axis]: us-gaap:InterestAndDividendIncomeOperating | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Pretax net gains (losses) reclassified from AOCI into interest income | (73) | (196) | (186) | (398) |
| Income Statement Location [Axis]: us-gaap:InterestExpenseOperating | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Pretax net gains (losses) reclassified from AOCI into interest income | 0 | (1) | 0 | (1) |
| Income Statement Location [Axis]: us-gaap:NoninterestIncome | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Pretax net gains (losses) reclassified from AOCI into interest income | $ 0 | $ (1) | $ 0 | $ (1) |
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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 tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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