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Property, Plant and Equipment (Tables)
3 Months Ended
Mar. 31, 2025
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment by major asset class consists of the following:
(Dollars in millions)March 31, 2025December 31, 2024
Land, buildings and improvements$383 $380 
Plant and machinery204 203 
Equipment and other409 382 
Total property, plant and equipment, at cost996 965 
Less accumulated depreciation(541)(525)
Total property, plant and equipment, net $455 $440