Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

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

	Architecture & Software			Control Products & Solutions			Total
Balance as of September 30, 2016	$	414.5		$	659.4		$	1,073.9
Acquisition of business	—			0.5			0.5
Translation	(4.6		)	(17.6		)	(22.2		)
Balance as of December 31, 2016	$	409.9		$	642.3		$	1,052.2

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

Other intangible assets consist of (in millions):

	December 31, 2016
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	182.4	$	105.9	$	76.5
Customer relationships	109.6		51.7		57.9
Technology	102.7		49.7		53.0
Trademarks	30.3		17.0		13.3
Other	10.3		8.5		1.8
Total amortized intangible assets	435.3		232.8		202.5
Allen-Bradley® trademark not subject to amortization	43.7		—		43.7
Total	$	479.0	$	232.8	$	246.2

	September 30, 2016
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	182.4	$	103.4	$	79.0
Customer relationships	112.6		51.9		60.7
Technology	103.9		48.5		55.4
Trademarks	31.4		17.0		14.4
Other	11.0		8.9		2.1
Total amortized intangible assets	441.3		229.7		211.6
Allen-Bradley® trademark not subject to amortization	43.7		—		43.7
Total	$	485.0	$	229.7	$	255.3