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Supplemental Information	6 Months Ended
Supplemental Information	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Information	Supplemental Information Accrued Liabilities Accrued liabilities were $604 and $657 at June 30, 2018 and December 31, 2017, respectively. Accrued rebates, which are components of accrued liabilities, were $94 and $108 at June 30, 2018 and December 31, 2017, respectively. No other component of accrued liabilities was more than five percent of total current liabilities. Accrued liabilities with affiliates were $42 and $37 at June 30, 2018 and December 31, 2017, respectively. Non-cash Investing Activity The change in capital expenditure accrual resulted in a decrease in additions to property, plant and equipment by $18 for the six months ended June 30, 2018. The change in capital expenditure accrual resulted in an increase in additions to property, plant and equipment by $11 for the six months ended June 30, 2017.