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Inventories (Tables)
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Components of Inventory The components of inventory are as follows:
June 30,December 31,
(MILLIONS OF DOLLARS)20212020
Finished goods$844 $805 
Work-in-process657 594 
Raw materials and supplies301 229 
Inventories$1,802 $1,628