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Trade Accounts Receivable, Net (Tables)
12 Months Ended
Dec. 31, 2017
Receivables [Abstract]  
Trade Accounts Receivable, Net

Trade accounts receivable, net consisted of the following:

 

     December 31,
2017
     December 31,
2016
 

Trade accounts receivable

     1,164        951  

Allowance for doubtful accounts

     (15      (12
  

 

 

    

 

 

 

Total

     1,149        939