XML 28 R11.htm IDEA: XBRL DOCUMENT v3.8.0.1
Inventories
12 Months Ended
Dec. 31, 2017
Inventories  
Inventories

3.  Inventories

Major classes of inventory are as follows:

 

 

 

 

 

 

 

 

 

    

2017

    

2016

 

Finished goods

 

$

873

 

$

827

 

Raw materials

 

 

122

 

 

118

 

Operating supplies

 

 

41

 

 

38

 

 

 

$

1,036

 

$

983