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Inventories (Tables)
 6 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Schedule of inventory
Inventories consisted of the following (in millions):
 
 
March 31,
 
September 30,
 
 
2014
 
2013
Raw materials
$
468.2

 
$
428.4

Partially finished products
258.1

 
272.4

Finished products
359.1

 
312.6

Inventories at FIFO cost
1,085.4

 
1,013.4

Less:
Progress/performance-based payments on U.S. government contracts
(92.6
)
 
(114.9
)
 
Excess of FIFO cost over LIFO cost
(79.7
)
 
(76.5
)
 
 
$
913.1

 
$
822.0