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Company-Sponsored Employee Benefit Plans (Defined Contribution Plan) (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 29, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plans expense $ 125.4 $ 118.6 $ 65.3
Safe Harbor 401(k) Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Non-elective employer contribution, percent of participant's compensation 3.00%    
Employer matching contribution percent 50.00%    
Employer matching contribution, percent of participant's compensation 5.00%    
Safe Harbor 401(k) Plan Non Adopting Unions      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Employer matching contribution percent 50.00%    
Employer matching contribution, percent of participant's compensation 6.00%    
Prior 401(k) Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Employer matching contribution percent 50.00%    
Employer matching contribution, percent of participant's compensation 6.00%    
Management Savings Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Non-elective employer contribution, percent of participant's compensation 3.00%    
Employer matching contribution percent 50.00%    
Employer matching contribution, percent of participant's compensation 5.00%    
Maximum annual contributions per employee, percent of salary 50.00%    
Maximum annual contributions per employee, percent of bonus 100.00%