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Inventories (Tables)
6 Months Ended
Jun. 30, 2013
Inventory Disclosure [Abstract]  
Components of inventories
The components of inventories were as follows:
 
June 30,
2013
December 31,
2012
Manufacturing supplies
$
56.6

$
64.3

Raw materials
79.4

110.7

Work in process
284.2

278.1

Finished products
423.4

430.4

Subtotal
843.6

883.5

Allowance for obsolete and surplus inventory
(25.0
)
(21.4
)
Total Inventories, net
$
818.6

$
862.1