Employee Stock Plans - Summarizes Combined Activity of Equity Incentive Plans (Detail) - $ / shares	12 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Awards Available For Grant
Beginning balance (in shares)	13,581,000	12,824,000	8,921,000
Increase in share reserve (in shares)	8,000,000	6,000,000	8,000,000
Granted (in shares)	(6,027,000)	(5,660,000)	(5,496,000)
Exercised or released (in shares)	30,000	163,000	0
Cancelled or forfeited (in shares)	872,000	254,000	1,399,000
Ending balance (in shares)	16,456,000	13,581,000	12,824,000
Stock Options / SARs Outstanding
Beginning balance (in shares)	1,858,000	2,975,000	3,381,000
Granted (in shares)	0	0	0
Exercised or released (in shares)	(543,000)	(1,029,000)	(110,000)
Cancelled or forfeited (in shares)	(249,000)	(88,000)	(296,000)
Ending balance (in shares)	1,066,000	1,858,000	2,975,000
Weighted- Average Exercise Price
Beginning balance (in usd per share)	$ 7.84	$ 7.03	$ 7.07
Granted (in usd per share)	0.00	0.00	0.00
Exercised or released (in usd per share)	4.87	4.85	2.40
Cancelled or forfeited (in usd per share)	14.67	15.36	9.29
Ending balance (in usd per share)	$ 7.75	$ 7.84	$ 7.03
Restricted stock awards and units
Restricted Stock Awards / Units Outstanding
Beginning balance (in shares)	5,687,000	5,022,000	4,545,000
Granted (in shares)	4,330,000	4,043,000	3,926,000
Exercised or released (in shares)	(2,959,000)	(3,257,000)	(2,897,000)
Cancelled or forfeited (in shares)	(472,000)	(121,000)	(552,000)
Ending balance (in shares)	6,586,000	5,687,000	5,022,000
Weighted- Average Grant Date Fair Value
Beginning balance (in usd per share)	$ 5.43	$ 2.67	$ 1.80
Granted (in usd per share)	8.22	6.53	2.92
Exercised or released (in usd per share)	4.97	2.57	2.13
Cancelled or forfeited (in usd per share)	6.73	4.76	1.87
Ending balance (in usd per share)	$ 7.38	$ 5.43	$ 2.67