Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill for the six months ended March 31, 2016 are (in millions):

	Architecture & Software			Control Products & Solutions			Total
Balance as of September 30, 2015	$	388.0		$	640.8		$	1,028.8
Acquisition of business	9.2			—			9.2
Translation	(4.4		)	(10.7		)	(15.1		)
Balance as of March 31, 2016	$	392.8		$	630.1		$	1,022.9

Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class

Other intangible assets consist of (in millions):

	March 31, 2016
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	182.4	$	97.9	$	84.5
Customer relationships	83.9		51.0		32.9
Technology	86.7		46.3		40.4
Trademarks	31.3		16.7		14.6
Other	11.2		8.7		2.5
Total amortized intangible assets	395.5		220.6		174.9
Intangible assets not subject to amortization	43.7		—		43.7
Total	$	439.2	$	220.6	$	218.6

	September 30, 2015
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	182.4	$	91.9	$	90.5
Customer relationships	87.2		50.1		37.1
Technology	83.4		44.1		39.3
Trademarks	32.3		16.3		16.0
Other	11.5		8.6		2.9
Total amortized intangible assets	396.8		211.0		185.8
Intangible assets not subject to amortization	43.7		—		43.7
Total	$	440.5	$	211.0	$	229.5