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Inventories
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories as of September 30, 2020 and December 31, 2019 were as follows:

In millionsSeptember 30, 2020December 31, 2019
Raw material$434 $452 
Work-in-process156 131 
Finished goods648 670 
LIFO reserve(89)(89)
Total inventories$1,149 $1,164