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Inventories (Tables)
 6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] The major types of inventories are as follows (work in process is not material and is included in Semi-finished inventory below):
June 30, 2021December 31, 2020
Logs$53 $49 
Other raw materials48 36 
Semi-finished inventory43 28 
Finished products167 146 
Total$311 $259