DEPOSITS - Maturities of Time Deposits (Details) $ in Millions	Dec. 31, 2023 USD ($)
Deposit Liability [Line Items]
2024	$ 276,734
2025	2,161
2026	817
2027	249
2028	229
After 5 years	292
Time Deposits	280,482
U.S.
Deposit Liability [Line Items]
2024	113,404
2025	1,143
2026	590
2027	137
2028	209
After 5 years	288
Time Deposits	115,771
Outside U.S.
Deposit Liability [Line Items]
2024	163,330
2025	1,018
2026	227
2027	112
2028	20
After 5 years	4
Time Deposits	$ 164,711

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/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
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