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Properties
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Properties Properties
 As of
 December 31, 2022December 31, 2021
 (In millions)
Land and improvements$355.9 $355.9 
Buildings and improvements1,205.5 1,225.1 
Production and office equipment4,897.3 4,858.5 
Software533.3 507.1 
Construction in progress497.4 335.2 
Other395.3 417.8 
Total properties cost7,884.7 7,699.6 
Less: accumulated depreciation(3,661.9)(3,507.2)
Properties, net$4,222.8 $4,192.4 
As of December 31, 2022, we modified the presentation of the subcategories of properties. The presentation of the subcategories of properties as of December 31, 2021 have been reclassified to conform to the presentation used as of December 31, 2022.
Depreciation expense was $476.7 million, $568.1 million and $702.0 million in the years ended December 31, 2022, December 31, 2021 and December 31, 2020, respectively. The decrease in depreciation expense for the year ended December 31, 2022 compared to 2021 was primarily due to assets becoming fully depreciated during the year, favorable impacts from foreign currency movements and a decrease in accelerated depreciation recorded as a result of certain facility closures.