LEASES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating right of use asset	$ 15
Statement of consolidated cash flow	26
Additional amount of operating lease right of use asset recorded	17
Operating lease liabilities	15
Operating lease liability current	$ 8
Weighted average remaining lease term	2 years 1 month 6 days
Weighted average discount rate	8.20%
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating right of use asset		$ 13
Operating lease liabilities		$ 13