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Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories as of March 31, 2022 and December 31, 2021 were as follows:

In millionsMarch 31, 2022December 31, 2021
Raw material$775 $716 
Work-in-process248 208 
Finished goods981 888 
LIFO reserve(121)(118)
Total inventories$1,883 $1,694