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Inventories (Notes)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
INVENTORIES INVENTORIES
All inventories are stated at the lower of cost or net realizable value. Cost of our inventories is determined by costing methods that approximate a first-in, first-out (“FIFO”) basis. Inventories at December 31 were as follows (in millions):
 20202021
Raw materials, work-in-process, and supplies$4,676 $5,785 
Finished products6,132 6,280 
Total inventories
$10,808 $12,065 

Finished products at December 31, 2021 in the table above include vehicles completed but awaiting installation of components affected by the semiconductor supply shortage, after which, they will proceed through an additional quality review process prior to being shipped to our dealers.