DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Financial Instruments on Income Statement (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022
Interest rate swaps
Derivative [Line Items]
Derivative financial instrument, net	$ (1)	$ 0
Interest rate lock commitments
Derivative [Line Items]
Derivative financial instrument, net	0	0
Forward delivery contracts
Derivative [Line Items]
Derivative financial instrument, net	4	2
Credit risk contracts
Derivative [Line Items]
Derivative financial instrument, net	$ 0	$ 0

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
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

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