Current Other Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Liabilities, Current [Abstract]
Asset retirement obligations	$ 4	$ 6
Benefit obligations (Note 9)	28	28
Customer rebates	35	63
Derivatives (Note 14)	8	8
Environmental (Note 10)	19	12
Insurance	5	6
Interest	25	29
Loss Contingency, Accrual, Current	94	105
Operating leases	29	29
Restructuring (Note 12)	13	13
Salaries and benefits	72	89
Sales and use tax/foreign withholding tax payable	58	35
Other	32	38
Total	$ 422	$ 461