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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
PROPERTY, PLANT AND EQUIPMENT
At December 31, the major classes of property, plant and equipment were as follows:
In millions
 
2014
 
2013
Land
 
$
62.9

 
$
64.2

Buildings
 
674.8

 
654.8

Machinery and equipment
 
1,647.8

 
1,612.0

Software
 
618.7

 
511.3

 
 
3,004.2

 
2,842.3

Accumulated depreciation
 
(1,527.2
)
 
(1,373.9
)
Total
 
$
1,477.0

 
$
1,468.4


Depreciation expense for the years ended December 31, 2014, 2013 and 2012 was $199.9 million, $199.5 million and $194.5 million, which include amounts for software amortization of $40.1 million, $44.3 million and $48.5 million, respectively.