Restructuring, integration and other expenses (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Charges related to the acquisition and integration activities [Abstract]
Restructuring expenses	$ 58,677
Restructuring, integration and other expenses before tax	90,805	$ 94,623	$ 149,501
Fiscal 2015 [Member]
Charges related to the acquisition and integration activities [Abstract]
Restructuring expenses	58,677
Integration costs	19,144
Other costs including acquisition costs	13,724
Changes in estimates for prior restructuring liabilities	(740)
Restructuring, integration and other expenses before tax	90,805
Restructuring, integration and other expenses after tax	$ 65,897
Restructuring, integration and other expenses per share on a diluted basis (in dollars per share)	$ 0.47
Fiscal 2014 [Member]
Charges related to the acquisition and integration activities [Abstract]
Restructuring expenses		65,749
Integration costs		20,455
Other costs including acquisition costs		8,767
Changes in estimates for prior restructuring liabilities		(348)
Restructuring, integration and other expenses before tax		94,623
Restructuring, integration and other expenses after tax		$ 70,773
Restructuring, integration and other expenses per share on a diluted basis (in dollars per share)		$ 0.50
Fiscal 2013 [Member]
Charges related to the acquisition and integration activities [Abstract]
Restructuring expenses			120,048
Integration costs			35,742
Other costs including acquisition costs			(3,224)
Changes in estimates for prior restructuring liabilities			(3,065)
Restructuring, integration and other expenses before tax			149,501
Restructuring, integration and other expenses after tax			$ 116,382
Restructuring, integration and other expenses per share on a diluted basis (in dollars per share)			$ 0.83