INVESTMENT SECURITIES AND OTHER SECURITIES - Narrative (Details) $ in Millions |
3 Months Ended | |
|---|---|---|
|
Jun. 30, 2024
USD ($)
security
|
Dec. 31, 2023
USD ($)
|
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| Investment Securities [Line Items] | ||
| AFS debt security charge-off | $ 2 | |
| Number of municipal bonds classified as AFS debt securities | security | 1 | |
| Allowance related to investment securities | $ 0 | $ 0 |
| Allowance related to investment securities, available for sale securities | 0 | 0 |
| Asset Pledged as Collateral | ||
| Investment Securities [Line Items] | ||
| Investment securities pledged | $ 37,600 | $ 35,100 |
| X | ||||||||||
- Definition [Line Items] for Investment Securities [Table] No definition available.
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from writeoff. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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