Document and Entity Information - shares	6 Months Ended
	Dec. 29, 2018	Jan. 25, 2019
Document and Entity Information
Entity Registrant Name	VIAVI SOLUTIONS INC.
Entity Central Index Key	0000912093
Document Type	10-Q
Document Period End Date	Dec. 29, 2018
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Small Business	false
Current Fiscal Year End Date	--06-29
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		227,996,418
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2