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INVENTORIES
 3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
INVENTORIES INVENTORIES
The following table provides a breakdown of inventories:

InventoriesMar 31, 2021Dec 31, 2020
In millions
Finished goods$216 $157 
Work in process29 23 
Raw materials45 38 
Supplies86 98 
Total$376 $316 
Adjustment of inventories to a LIFO basis(128)(93)
Total inventories$248 $223