Goodwill and Other Intangible Assets

9 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for the nine months ended June 30, 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	(2.4		)	(6.4		)	(8.8		)
Balance as of June 30, 2019	$	434.5		$	646.8		$	1,081.3

Other intangible assets consist of (in millions):



	June 30, 2019
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets:
Computer software products	$	190.6	$	125.7	$	64.9
Customer relationships	111.9		69.2		42.7
Technology	111.1		68.3		42.8
Trademarks	31.8		26.0		5.8
Other	10.9		9.9		1.0
Total amortized intangible assets	456.3		299.1		157.2
Allen-Bradley^® trademark not subject to amortization	43.7		—		43.7
Total	$	500.0	$	299.1	$	200.9



	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

Estimated amortization expense is $25.2 million in 2019, $22.6 million in 2020, $21.9 million in 2021, $19.9 million in 2022 and $18.7 million in 2023.

We performed our annual evaluation of goodwill and indefinite life intangible assets for impairment as required by accounting principles generally accepted in the United States (U.S. GAAP) during the second quarter of 2019 and concluded that these assets are not impaired.