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Property, net
 12 Months Ended
Sep. 30, 2016
Property, Plant and Equipment [Abstract]  
Property, net
Property, net
Property consists of (in millions):
 
 
September 30,
 
 
2016
 
2015
Land
 
$
4.5

 
$
4.5

Buildings and improvements
 
333.7

 
319.0

Machinery and equipment
 
1,085.1

 
1,042.3

Internal-use software
 
451.1

 
441.3

Construction in progress
 
108.4

 
97.6

Total
 
1,982.8

 
1,904.7

Less accumulated depreciation
 
(1,404.5
)
 
(1,299.1
)
Property, net
 
$
578.3

 
$
605.6