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Property, Plant and Equipment
 6 Months Ended
Jun. 30, 2015
Property, Plant and Equipment  
Property, Plant and Equipment

 

8.Property, Plant and Equipment

 

 

 

June 30,

 

December 31,

 

($ in millions)

 

2015

 

2014

 

 

 

 

 

 

 

Land

 

$
63.8

 

$
64.6

 

Buildings

 
986.7

 
973.4

 

Machinery and equipment

 
3,744.3

 
3,612.5

 

Construction-in-progress

 
363.6

 
382.7

 

 

 

 

 

 

 

 

 
5,158.4

 
5,033.2

 

Less accumulated depreciation

 
(2,675.0

)
(2,602.5

)

 

 

 

 

 

 

 

 

$
2,483.4

 

$
2,430.7

 

 

 

 

 

 

 

 

 

 

Property, plant and equipment are stated at historical or acquired cost. Depreciation expense amounted to $62.1 million and $121.0 million for the three and six months ended June 30, 2015, respectively, and $59.1 million and $118.2 million for the comparable periods in 2014, respectively.