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INVENTORIES
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
The following table provides a breakdown of inventories:

InventoriesSep 30, 2020Dec 31, 2019
In millions
Finished goods$3,052 $3,505 
Work in process935 1,122 
Raw materials587 628 
Supplies908 845 
Total$5,482 $6,100 
Adjustment of inventories to a LIFO basis127 114 
Total inventories$5,609 $6,214