Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill for the six months ended March 31, 2019, are (in millions):

	Architecture & Software			Control Products & Solutions			Total
Balance as of September 30, 2018	$	422.3		$	653.2		$	1,075.5
Acquisition of business	14.6			—			14.6
Translation	(0.2		)	(3.5		)	(3.7		)
Balance as of March 31, 2019	$	436.7		$	649.7		$	1,086.4

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

Other intangible assets consist of (in millions):

	March 31, 2019
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	190.6	$	123.3	$	67.3
Customer relationships	113.0		69.0		44.0
Technology	112.1		67.3		44.8
Trademarks	32.6		25.8		6.8
Other	11.0		9.9		1.1
Total amortized intangible assets	459.3		295.3		164.0
Allen-Bradley® trademark not subject to amortization	43.7		—		43.7
Total	$	503.0	$	295.3	$	207.7

5. Goodwill and Other Intangible Assets (continued)

	September 30, 2018
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	190.9	$	118.1	$	72.8
Customer relationships	112.9		66.2		46.7
Technology	106.8		64.0		42.8
Trademarks	32.0		24.0		8.0
Other	11.2		10.0		1.2
Total amortized intangible assets	453.8		282.3		171.5
Allen-Bradley® trademark not subject to amortization	43.7		—		43.7
Total	$	497.5	$	282.3	$	215.2