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Inventories
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Inventories
11. Inventories
The components of inventory follow:
As of December 31,
(MILLIONS OF DOLLARS)20212020
Finished goods$888 $805 
Work-in-process696 594 
Raw materials and supplies339 229 
Inventories$1,923 $1,628