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INVENTORIES
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
The following table provides a breakdown of inventories:

InventoriesMar 31, 2020Dec 31, 2019
In millions
Finished goods$3,607  $3,505  
Work in process1,080  1,122  
Raw materials590  628  
Supplies860  845  
Total$6,137  $6,100  
Adjustment of inventories to a LIFO basis187  114  
Total inventories$6,324  $6,214