Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of Goodwill for the three months ended December 31, 2023, were (in millions):

	Intelligent Devices		Software & Control		Lifecycle Services		Total
Balance as of September 30, 2023	$	595.8	$	2,420.1	$	513.3	$	3,529.2
Acquisition of businesses	267.0		—		133.0		400.0
Translation	16.9		13.5		7.1		37.5
Balance as of December 31, 2023	$	879.7	$	2,433.6	$	653.4	$	3,966.7
Gross carrying value of goodwill	879.7		2,433.6		810.9		4,124.2
Accumulated impairment losses	—		—		(157.5)		(157.5)
Goodwill	$	879.7	$	2,433.6	$	653.4	$	3,966.7

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

Other intangible assets consist of (in millions):

	December 31, 2023
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets
Software products	$	105.1	$	67.8	$	37.3
Customer relationships	618.4		152.2		466.2
Technology	737.6		194.8		542.8
Trademarks	133.0		33.1		99.9
Other	5.7		5.2		0.5
Total amortized intangible assets	1,599.8		453.1		1,146.7
Allen-Bradley® trademark not subject to amortization	43.7		—		43.7
Other intangible assets	$	1,643.5	$	453.1	$	1,190.4

	September 30, 2023
	Carrying Amount		Accumulated Amortization		Net
Amortized intangible assets
Software products	$	100.4	$	65.1	$	35.3
Customer relationships	606.1		141.3		464.8
Technology	424.1		173.1		251.0
Trademarks	86.3		29.3		57.0
Other	6.0		5.4		0.6
Total amortized intangible assets	1,222.9		414.2		808.7
Allen-Bradley® trademark not subject to amortization	43.7		—		43.7
Other intangible assets	$	1,266.6	$	414.2	$	852.4