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Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Components of Inventory The components of inventory are as follows:
September 30,December 31,
(MILLIONS OF DOLLARS)20212020
Finished goods$886 $805 
Work-in-process675 594 
Raw materials and supplies314 229 
Inventories$1,875 $1,628