GOODWILL AND CORE DEPOSIT INTANGIBLES - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - Core deposit intangible - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
2025	$ 54
2026	46
2027	39
2028	34
2029	30
Thereafter	46
Balance, net of accumulated amortization	$ 249	$ 312	$ 140

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.

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