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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment PROPERTY, PLANT AND EQUIPMENT
 December 31,
Dollars in Millions20212020
Land$169 $189 
Buildings5,897 5,732 
Machinery, equipment and fixtures3,252 3,063 
Construction in progress764 487 
Gross property, plant and equipment10,082 9,471 
Less accumulated depreciation(4,033)(3,585)
Property, plant and equipment$6,049 $5,886 
United States$4,710 $4,501 
Europe1,176 1,243 
Rest of the World163 142 
Total$6,049 $5,886 

Depreciation expense was $559 million in 2021, $586 million in 2020 and $554 million in 2019.