GOODWILL AND OTHER INTANGIBLES - Identifiable Intangible Assets (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 63,000,000		$ 63,000,000		$ 63,000,000
Accumulated Amortization	(56,000,000)		(56,000,000)		(56,000,000)
Net Intangible Assets	7,000,000		7,000,000		7,000,000
Amortization of Intangible Assets	0	$ 0	0	$ 0
Customer relationships and lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	56,000,000		56,000,000		56,000,000
Accumulated Amortization	(50,000,000)		(50,000,000)		(50,000,000)
Net Intangible Assets	6,000,000		6,000,000		6,000,000
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,000,000		7,000,000		7,000,000
Accumulated Amortization	(6,000,000)		(6,000,000)		(6,000,000)
Net Intangible Assets	$ 1,000,000		$ 1,000,000		$ 1,000,000