Other Current Liabilities - Summary of other current liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Other Current Liabilities Disclosure [Abstract]
Compensation and benefits	$ 86	$ 122
Income taxes	32	27
Taxes other than income taxes	23	25
Accrued interest	17	11
Product warranties	19	19	$ 16
Environmental reserves (see Note 21)	8	8
Restructuring (see Note 7)	2	3	$ 3
Asbestos-related liabilities (see Note 21)	61	18
Indemnity obligations (see Note 21)	1	1
Other	51	56
Other current liabilities	$ 300	$ 290