Goodwill and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 30, 2013
Goodwill
Beginning Balance	$ 948.8
Goodwill, Acquired During Period	71.1
Translation	(9.2)
Ending Balance	1,010.7
Architecture and Software [Member]
Goodwill
Beginning Balance	387.7
Goodwill, Acquired During Period	0
Translation	(3.1)
Ending Balance	384.6
Control Products and Solutions [Member]
Goodwill
Beginning Balance	561.1
Goodwill, Acquired During Period	71.1
Translation	(6.1)
Ending Balance	$ 626.1