Non Operating Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Other Nonoperating Income (Expense) [Abstract]
Loss on prepayment of long-term debt	$ (118.0)	$ 0.0	$ (33.0)
Impairment of cost-method investments	0.0	0.0	(11.0)
Impairment of investments in joint venture	0.0	0.0	(7.0)
Gain on sale of securities available-for-sale	0.0	0.0	9.0
Equity investment income	0.0	0.0	0.0
Gain on sale of business	9.0	0.0	0.0
Net income related to intellectual property matters	1.0	4.0	1.0
Non-operating income(loss)	$ (108.0)	$ 4.0	$ (41.0)