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PROPERTY, PLANT & EQUIPMENT (Tables)
12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Major Classes of Depreciable Assets
The major classes of depreciable assets are as follows:
 December 31,
In millions20192018
Machinery and equipment$1,363.8  $749.8  
Buildings and improvements774.2  248.1  
Land and improvements78.0  38.7  
Property, plant and equipment2,216.0  1,036.6  
Less: accumulated depreciation(560.2) (472.8) 
Total$1,655.8  $563.8  
Estimated Useful Lives of Property Plant and Equipment The estimated useful lives of property, plant and equipment are as follows:
 Years
Land improvements10 to 20
Building and improvements20 to 40
Machinery and equipment3 to 15