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Basis of Presentation (Details)
3 Months Ended 12 Months Ended
Dec. 27, 2014
item
Jun. 27, 2015
Jun. 28, 2014
Sep. 10, 2014
item
Fiscal years, change in reportable segments and spinoff plans announcement        
Number of weeks in fiscal year   364 days 364 days  
New reportable segments 2jdsu_ReportableSegmentsCreated      
Number of new public entities       2jdsu_NewPublicEntitySpinoffAnnouncement
Minimum        
Fiscal years, change in reportable segments and spinoff plans announcement        
Number of weeks in fiscal year   364 days    
Maximum        
Fiscal years, change in reportable segments and spinoff plans announcement        
Number of weeks in fiscal year   371 days