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Plant and Equipment and Goodwill
6 Months Ended
Jun. 30, 2011
Notes to Financial Statement [Abstract]  
Plant and Equipment and Goodwill
Note 6: Plant and Equipment and Goodwill

Plant and equipment consisted of the following (in millions):

   
June 30,
2011
  
December 31,
2010
 
Plant and equipment, at cost
 $2,465.3  $2,285.9 
Accumulated depreciation
  (1,122.9)  (1,038.1)
Total plant and equipment
 $1,342.4  $1,247.8 

Changes in goodwill during the six months ended June 30, 2011 were as follows (in millions):

Balance at December 31, 2010
 $1,475.8 
Current year acquisitions
  35.9 
Translation
  19.6 
Balance at June 30, 2011
 $1,531.3