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Identifiable Intangible Assets (Tables)
 12 Months Ended
Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill [Table Text Block]
Intangible assets are presented below.
 
September 30,
 
2015
 
2014
 
(in millions)
Capitalized external-use software:
 
 
 
Cost
$
17.9

 
$
14.3

Accumulated amortization
(7.0
)
 
(5.4
)
Net book value
10.9

 
8.9

 
 
 
 
Business combination-related:
 
 
 
Cost:
 
 
 
Finite-lived intangible assets:
 
 
 
Technology
80.3

 
80.4

Customer relationships and other
400.2

 
400.2

Indefinite-lived intangible assets:
 
 
 
Trade names and trademarks
299.6

 
300.0

Goodwill
5.4

 
5.4

 
785.5

 
786.0

Accumulated amortization:
 
 
 
Technology
(74.2
)
 
(68.1
)
Customer relationships and other
(214.9
)
 
(193.2
)
 
(289.1
)
 
(261.3
)
Net book value
496.4

 
524.7

Total intangible assets net book value
$
507.3

 
$
533.6