GOODWILL AND OTHER INTANGIBLES - Identifiable Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 63	$ 63
Accumulated Amortization	(57)	(56)
Net Intangible Assets	6	7
Customer relationships and lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	56	56
Accumulated Amortization	(51)	(50)
Net Intangible Assets	5	6
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3	3
Accumulated Amortization	(3)	(3)
Net Intangible Assets	0	0
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4	4
Accumulated Amortization	(3)	(3)
Net Intangible Assets	$ 1	$ 1