Acquired Developed Technology and Other Intangibles (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Jan. 01, 2022	Jan. 02, 2021	Jul. 03, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 654.5		$ 654.5		$ 657.1
Accumulated Amortization	(586.4)		(586.4)		(569.1)
Net	68.1		68.1		88.0
Cost of revenues	7.4	$ 8.4	15.3	$ 16.6
Operating expenses	2.6	8.1	5.3	16.6
Total amortization of intangible assets	10.0	$ 16.5	20.6	$ 33.2
Estimated future amortization expense
Remainder of 2022	18.9		18.9
2023	25.5		25.5
2024	10.5		10.5
2025	7.0		7.0
2026	3.4		3.4
Thereafter	2.8		2.8
Total amortization	68.1		68.1
Acquired developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	422.9		422.9		423.8
Accumulated Amortization	(370.4)		(370.4)		(356.9)
Net	52.5		52.5		66.9
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	194.2		194.2		195.4
Accumulated Amortization	(181.8)		(181.8)		(180.8)
Net	12.4		12.4		14.6
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	37.4		37.4		37.9
Accumulated Amortization	(34.2)		(34.2)		(31.4)
Net	$ 3.2		$ 3.2		$ 6.5