Current Other Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Other Liabilities, Current [Abstract]
Asset retirement obligations	$ 4	$ 19
Benefit obligations (Note 11)	30	30
Customer rebates (Note 20)	65	65
Derivatives (Note 16)	3	3
Environmental (Note 12)	25	14
Insurance	4	5
Interest	21	17
Restructuring (Note 14)	8	5
Salaries and benefits	109	113
Sales and use tax/foreign withholding tax payable	31	16
Other	47	67
Total	$ 347	$ 354

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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