CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (99.2)	$ (88.1)	$ (17.8)
Other comprehensive (loss) income:
Net change in cumulative translation adjustment, net of tax	(32.0)	(55.4)	9.8
Net change in available-for-sale investments, net of tax:
Unrealized holding gains (losses) arising during period	177.3	(0.4)	0.4
Less: reclassification adjustments included in Net (loss) income	(69.6)	0.0	(0.1)
Net change in defined benefit obligation, net of tax:
Unrealized actuarial losses arising during period	(10.6)	(3.7)	(7.7)
Amortization of actuarial losses	0.7	0.4	0.1
Net change in Accumulated other comprehensive income (loss)	65.8	(59.1)	2.5
Comprehensive loss	$ (33.4)	$ (147.2)	$ (15.3)