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PROPERTIES AND ACCUMULATED DEPRECIATION (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Schedule of Properties
 December 31,
(Dollars in millions)20202019
Properties
Land$163 $158 
Buildings1,824 1,450 
Machinery and equipment11,494 11,117 
Construction in progress50 356 
Properties and equipment at cost$13,531 $13,081 
Less:  Accumulated depreciation7,982 7,510 
Net properties$5,549 $5,571