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Financial Statement Details - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	8 Months Ended	12 Months Ended
	Mar. 31, 2017	Feb. 28, 2017	Jun. 30, 2019	Jun. 24, 2018	Jun. 25, 2017
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Depreciation of property and equipment			$ 97.0	$ 94.8	$ 89.7
Losses on disposals or impairments of property and equipment			1.5	6.3	0.9
Accrued property and equipment			21.3	15.0	10.2
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Gain (loss) on available for sale securities			(0.1)	$ (0.1)	$ 0.1
Currency translation gains (losses) reclassified to earnings			$ (5.2)
Infineon
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Contract termination fee	$ 12.5
Asset Purchase Agreement expenses		$ 9.7

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Future cash outflow to pay for construction in progress expenditures that have occurred.

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