Document and Entity Information Document - shares
6 Months Ended
Dec. 31, 2016
Jan. 19, 2017
Document and Entity Information [Abstract]    
Entity Registrant Name AVNET INC  
Entity Central Index Key 0000008858  
Document Type 10-Q  
Document Period End Date Dec. 31, 2016  
Current Fiscal Year End Date --07-01  
Amendment Flag false  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   128,894,613