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Inventory, Net
 12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Inventory, Net [Text Block] INVENTORY, NET
(dollars in millions)20192018
Raw materials$2,984 $2,624 
Work-in-process2,586 2,538 
Finished goods3,477 2,919 
$9,047 $8,081 
Raw materials, work-in-process and finished goods are net of valuation reserves of $1,122 million and $1,036 million as of December 31, 2019 and 2018, respectively.