ACCRUED LIABILITIES - Accrued Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accrued Liabilities Current [Abstract]
Compensation and employee benefit costs	$ 187	$ 188
Current portion of lease liabilities	30	33
Customer rebates, volume discounts and deferred income	122	105
Interest	86	98
Taxes payable	89	24
Other	103	82
Total	$ 617	$ 530