Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Changes in the carrying amount of goodwill for the six months ended March 31, 2013 are (in millions):

	Architecture & Software			Control Products & Solutions			Total
Balance as of September 30, 2012	$	387.7		$	561.1		$	948.8
Acquisition of businesses	—			71.1			71.1
Translation	(4.4		)	(10.2		)	(14.6		)
Balance as of March 31, 2013	$	383.3		$	622.0		$	1,005.3

Other intangible assets

Other intangible assets consist of (in millions):

	March 31, 2013
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	133.3	$	67.8	$	65.5
Customer relationships	76.3		33.2		43.1
Technology	90.6		53.3		37.3
Trademarks	30.2		13.9		16.3
Other	22.0		17.5		4.5
Total amortized intangible assets	352.4		185.7		166.7
Intangible assets not subject to amortization	43.7		—		43.7
Total	$	396.1	$	185.7	$	210.4

	September 30, 2012
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	123.4	$	61.2	$	62.2
Customer relationships	72.6		30.7		41.9
Technology	88.9		50.9		38.0
Trademarks	32.1		12.9		19.2
Other	21.4		16.9		4.5
Total amortized intangible assets	338.4		172.6		165.8
Intangible assets not subject to amortization	43.7		—		43.7
Total	$	382.1	$	172.6	$	209.5