XML 23 R9.htm IDEA: XBRL DOCUMENT v3.19.1
Inventories
3 Months Ended
Mar. 31, 2019
Inventories  
Inventories

 

3.  Inventories

Major classes of inventory at March 31, 2019, December 31, 2018 and March 31, 2018 are as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March 31,

 

December 31,

 

March 31,

 

 

 

    

2019

    

2018

    

2018

    

 

Finished goods

 

$

868

 

$

849

 

$

901

 

 

Raw materials

 

 

126

 

 

125

 

 

120

 

 

Operating supplies

 

 

44

 

 

44

 

 

44

 

 

 

 

$

1,038

 

$

1,018

 

$

1,065