Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets Excluding Goodwill

Intangible assets consist of the following (in millions):

		As of						As of
	Weighted Average Amortization Period (Years)	June 30, 2023						September 30, 2022
		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships and backlog	2.3	$	154.6	$	(151.0)	$	3.6	$	154.6	$	(122.3)	$	32.3
Developed technology and other	6.1	1,290.4		(337.5)		952.9		1,280.9		(209.2)		1,071.7
Technology licenses	2.7	72.1		(30.3)		41.8		105.1		(45.2)		59.9
In-process research and development		271.3		—		271.3		280.8		—		280.8
Total intangible assets		$	1,788.4	$	(518.8)	$	1,269.6	$	1,821.4	$	(376.7)	$	1,444.7

Schedule Of Expected Annual Amortization Expense Related To Intangible Assets For The Next Five Years

Annual amortization expense for the next five fiscal years related to definite-lived intangible assets, excluding IPR&D, is expected to be as follows (in millions):

	Remaining 2023		2024		2025		2026		2027		Thereafter
Amortization expense	$	51.2	$	178.1	$	154.9	$	127.1	$	111.8	$	375.2