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Inventories (Tables)
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventories at March 31, 2014 and December 31, 2013 were as follows (in millions):
 
March 31, 2014
 
December 31, 2013
Finished goods
$
967.5

 
$
775.7

Repair and replacement parts
628.5

 
550.2

Work in process
199.2

 
109.0

Raw materials
647.2

 
581.2

Inventories, net
$
2,442.4

 
$
2,016.1