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Inventories
6 Months Ended
Mar. 31, 2013
Inventory Disclosure [Abstract]  
Inventories

6.       INVENTORIES

The components of inventories are as follows:

  31 March30 September 
  20132012 
 Finished goods$ 548.7 $ 617.9  
 Work in process  36.2   36.7  
 Raw materials, supplies and other  238.0   220.0  
    822.9   874.6  
 Less: Excess of FIFO cost over LIFO cost  (94.8)   (88.0)  
  $ 728.1 $ 786.6  

FIFO cost approximates replacement cost. Our inventories have a high turnover, and as a result, there is little difference between the original cost of an item and its current replacement cost.