BORROWINGS - Summary of Short-Term Borrowings (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Securities sold under repurchase agreements	$ 252	$ 317
Federal Home Loan Bank advances	2,000	930
Federal funds purchased	25	0
Subordinated notes	114	125
Total short-term borrowings	$ 2,391	$ 1,372

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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+ Details