INVESTMENT SECURITIES AND OTHER SECURITIES - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2022 |
Jun. 30, 2022 |
Jun. 30, 2021 |
Dec. 31, 2021 |
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| Investment Securities [Line Items] | ||||
| Transfer of securities from available-for-sale to held-to-maturity | $ 4,200 | $ 4,225 | $ 3,007 | |
| Unrealized gains attributed to transfer of securities | (58) | |||
| AFS debt security charge-off | $ 4 | |||
| Asset Pledged as Collateral | ||||
| Investment Securities [Line Items] | ||||
| Investment securities pledged | $ 28,700 | $ 21,700 | ||
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- Definition Available For Sale Securities Transferred To Held To Maturity Securities. No definition available.
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| X | ||||||||||
- Definition [Line Items] for Investment Securities [Table] No definition available.
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- Definition Unrealized Net Losses Recognized In OCI At Time Of Transfer Of Available For Sale Securities Transferred To Held To Maturity Securities 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). No definition available.
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- 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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- Details
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