Earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Numerator:
Income (loss) from continuing operations	$ (142,889)	$ 263,351	$ 390,909
Income (loss) from discontinued operations	(13,535)	261,927	115,622
Net (loss) income	$ (156,424)	$ 525,278	$ 506,531
Denominator:
Weighted average common shares for basic earnings per share	119,909,000	127,032,000	130,858,000
Net effect of dilutive stock based compensation awards		1,619,000	2,315,000
Weighted average common shares for diluted earnings per share	119,909,000	128,651,000	133,173,000
Basic earnings (loss) per share-continuing operations	$ (1.19)	$ 2.07	$ 2.99
Basic earnings (loss) per share-discontinued operations	(0.11)	2.06	0.88
Basic earnings (loss) per share	(1.30)	4.13	3.87
Diluted earnings (loss) per share-continuing operations	(1.19)	2.05	2.93
Diluted earnings (loss) per share-discontinued operations	(0.11)	2.03	0.87
Diluted earnings (loss) per share	$ (1.30)	$ 4.08	$ 3.80
antidilutive Securities	1,125,877
Stock Options
Denominator:
antidilutive Securities	1,495,000	1,038,000	378,000