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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Components of Inventory
The components of inventory are as follows:
September 30,December 31,
(MILLIONS OF DOLLARS)20202019
Finished goods$824 $701 
Work-in-process579 511 
Raw materials and supplies223 198 
Inventories$1,626 $1,410