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Acquired Developed Technology and Other Intangibles (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Jun. 29, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 661.4		$ 666.8
Accumulated Amortization	(469.6)		(455.2)
Net	191.8		211.6
Cost of revenues	8.4	$ 9.4
Operating expenses	8.7	9.8
Total amortization of intangible assets	17.1	$ 19.2
Estimated future amortization expense
Remainder of 2020	50.0
2021	62.7
2022	36.8
2023	23.0
2024	9.2
Thereafter	10.1
Total amortization	191.8
Acquired developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	433.9		437.0
Accumulated Amortization	(317.8)		(311.1)
Net	116.1		125.9
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	192.0		193.7
Accumulated Amortization	(132.6)		(126.3)
Net	59.4		67.4
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	35.5		36.1
Accumulated Amortization	(19.2)		(17.8)
Net	$ 16.3		$ 18.3

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