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Inventories
12 Months Ended
Dec. 31, 2015
Inventory, Net [Abstract]  
Inventories
INVENTORIES
The classes of inventory as of December 31 are summarized as follows ($ in millions):
 
2015
 
2014
Finished goods
$
1,038.5

 
$
903.7

Work in process
319.8

 
266.4

Raw materials
737.1

 
612.7

Total
$
2,095.4

 
$
1,782.8


As of December 31, 2015 and 2014, the difference between inventories valued at LIFO and the value of that same inventory if the FIFO method had been used was not significant. The liquidation of LIFO inventory did not have a significant impact on the Company’s results of operations in any period presented.