Current Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Other Liabilities, Current [Abstract]
Asset retirement obligations	$ 6	$ 3
Benefit obligations (Note 15)	28	30
Customer rebates	63	76
Derivatives (Note 22)	8	7
Environmental (Note 16)	12	20
Insurance	6	4
Interest	29	21
Legal (Note 24)	105	4
Operating leases (Note 21)	29	0
Restructuring (Note 18)	13	4
Salaries and benefits	89	119
Sales and use tax/foreign withholding tax payable	35	22
Other	38	33
Total	$ 461	$ 343