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Enterprise-Wide Disclosures (Percentage Of Net Sales To And Trade Accounts Receivables From Significant Customers) (Detail)
12 Months Ended
Jun. 27, 2020
Jun. 29, 2019
Jun. 30, 2018
Customer A [Member]      
Segment Reporting Information [Line Items]      
Percent of Net Sales 18.00% 17.00% 19.00%
Percentage of Trade Accounts Receivable 14.00% 11.00%  
Customer B [Member]      
Segment Reporting Information [Line Items]      
Percentage of Trade Accounts Receivable 12.00%