Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 27, 2019

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)	September 27, 2019							September 28, 2018
		Gross carrying amount		Accumulated amortization			Net carrying amount		Gross carrying amount		Accumulated amortization			Net carrying amount
Customer relationships	3.8	$	25.6	$	(19.5	)	$	6.1	$	31.7	$	(13.2	)	$	18.5
Developed technology and other	4.2	94.4		(48.9		)	45.5		89.9		(23.5		)	66.4
Trademarks	3.0	1.6		(1.3		)	0.3		1.6		(0.8		)	0.8
Capitalized software	3.0	—		—			—		18.0		(6.0		)	12.0
Technology licenses	2.4	24.9		(4.8		)	20.1		$	—	—			—
IPR&D		35.9		—			35.9		$	46.0	—			46.0
Total intangible assets		$	182.4	$	(74.5	)	$	107.9	$	187.2	$	(43.5	)	$	143.7

Schedule of Expected Amortization Expense

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

	2020		2021		2022		2023		2024		Thereafter
Total amortization expense	$	42.2	$	18.8	$	5.1	$	1.1	$	1.1	$	3.7