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Contingencies (Narrative) (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 28, 2017
Jun. 29, 2016
Guarantor Obligations [Line Items]    
Letters of Credit Outstanding, Amount $ 31.2  
Lease Guarantees And Secondary Obligations [Member]    
Guarantor Obligations [Line Items]    
Loss Contingency, Accrual, Current $ 1.5  
Description of Material Contingencies of Parent Company No other liabilities have been recorded  
Maximum [Member] | Lease Guarantees And Secondary Obligations [Member]    
Guarantor Obligations [Line Items]    
Loss Contingency, Estimate of Possible Loss $ 69.0 $ 72.9