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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Jan. 01, 2022
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
(Millions of Dollars)20212020
Land$143.1 $136.7 
Land improvements61.2 56.5 
Buildings745.9 639.9 
Leasehold improvements169.6 162.9 
Machinery and equipment3,412.9 2,984.3 
Computer software476.3 425.5 
Property, plant & equipment, gross$5,009.0 $4,405.8 
Less: accumulated depreciation and amortization(2,661.9)(2,432.7)
Property, plant & equipment, net$2,347.1 $1,973.1 
Depreciation and amortization expense associated with property, plant and equipment was as follows:
(Millions of Dollars)202120202019
Depreciation$326.3 $332.6 $325.2 
Amortization47.7 43.9 47.6 
Depreciation and amortization expense$374.0 $376.5 $372.8 
The amounts above are inclusive of depreciation and amortization expense for discontinued operations amounting to $22.1 million in 2021, $21.1 million in 2020, and $19.7 million in 2019.