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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Components of Net Inventories
The components of inventories were as follows at December 31, (in millions):
20202019
Raw materials and supplies$252 $231 
Work-in-process157 135 
Finished products1,229 1,240 
$1,638 $1,606