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Inventories (Tables)
 9 Months Ended
Sep. 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):
September 30, 2021December 31, 2020
Logs$47 $49 
Other raw materials53 36 
Semi-finished inventory42 28 
Finished products178 146 
Total$320 $259