Other Noncurrent Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Other Liabilities, Noncurrent [Abstract]
Pension liabilities	$ 244	$ 253
Asset retirement obligations	29	27
Environmental reserves	8	11
Restructuring and plant closing costs	7	14
Employee benefit accrual	3	4
Other postretirement benefits	3	3
Other	6	1
Total	$ 300	$ 313