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Balance Sheet Details - Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020	Jun. 29, 2019
Property, Plant and Equipment
Property plant and equipment including finance lease, gross	$ 772.0	$ 791.2	$ 772.0	$ 791.2
Less: Accumulated depreciation	(410.9)	(398.2)	(410.9)	(398.2)
Property, plant and equipment, net	361.1	393.0	361.1	393.0
Depreciation expense			91.4	113.3	$ 102.9
Gain recognized on disposition of land and building			(0.3)	(21.8)	$ (32.9)
Land
Property, Plant and Equipment
Property, plant and equipment, gross	38.2	44.1	38.2	44.1
Buildings and improvement
Property, Plant and Equipment
Property, plant and equipment, gross	92.7	114.8	92.7	114.8
Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	498.3	487.0	498.3	487.0
Computer equipment and software
Property, Plant and Equipment
Property, plant and equipment, gross	28.6	27.5	28.6	27.5
Furniture and fixtures
Property, Plant and Equipment
Property, plant and equipment, gross	8.8	7.2	8.8	7.2
Leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, gross	33.9	27.8	33.9	27.8
Finance lease right-of-use assets
Property, Plant and Equipment
Finance lease right-of-use assets	28.1	28.1	28.1	28.1
Construction in progress
Property, Plant and Equipment
Property, plant and equipment, gross	43.4	54.7	43.4	54.7
Land and Building \| Discontinued Operations, Disposed of by Sale \| Manufacturing Site
Property, Plant and Equipment
Consideration received on sale	23.0	23.0	$ 23.0	$ 23.0
Gain recognized on disposition of land and building	$ 8.3	$ 8.3