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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment by major asset class consists of the following:
December 31,
(Dollars in millions)20212020
Land, buildings and improvements$312 $294 
Plant and machinery191 186 
Equipment and other298 276 
Total property, plant and equipment, at cost801 756 
Less accumulated depreciation(437)(401)
Total property, plant and equipment, net
$364 $355