Earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Numerator:
Income (loss) from continuing operations	$ (315,604)	$ 89,920	$ (200,628)	$ 190,073
Income (loss) from discontinued operations	(4,462)	181,851	(14,411)	253,759
Net (loss) income	$ (320,066)	$ 271,771	$ (215,039)	$ 443,832
Denominator:
Weighted average common shares for basic earnings per share	119,601,000	128,487,000	120,895,000	127,973,000
Net effect of dilutive stock based compensation awards		945,000		1,874,000
Weighted average common shares for diluted earnings per share	119,601,000	129,432,000	120,895,000	129,847,000
Basic earnings (loss) per share-continuing operations	$ (2.64)	$ 0.70	$ (1.66)	$ 1.48
Basic earnings (loss) per share-discontinued operations	(0.04)	1.42	(0.12)	1.98
Basic earnings (loss) per share	(2.68)	2.12	(1.78)	3.46
Diluted earnings (loss) per share-continuing operations	(2.64)	0.69	(1.66)	1.46
Diluted earnings (loss) per share-discontinued operations	(0.04)	1.41	(0.12)	1.95
Diluted earnings (loss) per share	$ (2.68)	$ 2.10	$ (1.78)	$ 3.41
antidilutive Securities	939,722		1,195,935
Stock Options
Denominator:
antidilutive Securities	1,591,000	92,000	1,591,000	98,000