Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
Changes in accumulated other comprehensive income (loss) by component
Beginning balance	$ 763.9	$ 633.2	$ 627.3
Net change in accumulated other comprehensive (loss) income	(59.2)	68.7	(31.3)
Ending balance	671.7	763.9	633.2
Unrealized actuarial gain	20.1
Income tax effect	6.2
Total
Changes in accumulated other comprehensive income (loss) by component
Beginning balance	(97.2)	(165.9)	(134.6)
Other comprehensive (loss) income before reclassification	(62.1)
Amounts reclassified from accumulated other comprehensive (loss) income	2.9
Net change in accumulated other comprehensive (loss) income	(59.2)	68.7	(31.3)
Ending balance	(156.4)	(97.2)	$ (165.9)
Unrealized (losses) gains on available-for-sale investments
Changes in accumulated other comprehensive income (loss) by component
Beginning balance	(5.1)
Other comprehensive (loss) income before reclassification	0.1
Amounts reclassified from accumulated other comprehensive (loss) income	0.0
Net change in accumulated other comprehensive (loss) income	0.1
Ending balance	(5.0)	(5.1)
Foreign currency translation adjustments
Changes in accumulated other comprehensive income (loss) by component
Beginning balance	(68.1)
Other comprehensive (loss) income before reclassification	(76.1)
Amounts reclassified from accumulated other comprehensive (loss) income	0.0
Net change in accumulated other comprehensive (loss) income	(76.1)
Ending balance	(144.2)	(68.1)
Change in unrealized components of defined benefit obligations, net of tax
Changes in accumulated other comprehensive income (loss) by component
Beginning balance	(24.0)
Other comprehensive (loss) income before reclassification	13.9
Amounts reclassified from accumulated other comprehensive (loss) income	2.9
Net change in accumulated other comprehensive (loss) income	16.8
Ending balance	$ (7.2)	$ (24.0)

Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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