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Inventory, Net
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventory, Net [Text Block] INVENTORY, NET
(dollars in millions)20202019
Raw materials$3,015 $2,984 
Work-in-process2,924 2,586 
Finished goods3,472 3,477 
$9,411 $9,047 
Raw materials, work-in-process and finished goods are net of valuation reserves of $1,788 million and $1,122 million as of December 31, 2020 and 2019, respectively.