v3.10.0.1
Document And Entity Information - shares
6 Months Ended
Dec. 30, 2018
Jan. 30, 2019
Document Information [Line Items]    
Entity Registrant Name BRIGGS & STRATTON CORP  
Entity Central Index Key 0000014195  
Current Fiscal Year End Date --06-30  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Dec. 30, 2018  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   42,911,786