Goodwill and Other Intangible Assets (Details) $ in Millions	3 Months Ended
	Dec. 31, 2015 USD ($)
Goodwill
Balance as of September 30, 2015	$ 1,028.8
Translation	(8.9)
Balance as of December 31, 2015	1,019.9
Architecture & Software [Member]
Goodwill
Balance as of September 30, 2015	388.0
Translation	(1.5)
Balance as of December 31, 2015	386.5
Control Products & Solutions [Member]
Goodwill
Balance as of September 30, 2015	640.8
Translation	(7.4)
Balance as of December 31, 2015	$ 633.4