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Inventories (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Sep. 30, 2012
Inventories    
Finished goods $ 248.4 $ 262.5
Work in process 167.2 149.5
Raw materials, parts and supplies 199.8 207.0
Inventories $ 615.4 $ 619.0