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Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Jul. 02, 2016
Jul. 29, 2016
Dec. 31, 2015
Document and Entity Information      
Entity Registrant Name VIAVI SOLUTIONS INC.    
Entity Central Index Key 0000912093    
Document Type 10-K    
Document Period End Date Jul. 02, 2016    
Amendment Flag false    
Current Fiscal Year End Date --07-02    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 1.4
Entity Common Stock, Shares Outstanding   232,298,097.000  
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY