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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Components of Inventory
The components of inventory follow:
As of December 31,
(MILLIONS OF DOLLARS)20202019
Finished goods$805 $701 
Work-in-process594 511 
Raw materials and supplies229 198 
Inventories$1,628 $1,410