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Description of Business and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Jun. 28, 2014
Description of Business and Summary of Significant Accounting Policies  
Schedule of asset retirement obligation

 

 

(in millions)
  Balance at
Beginning of
Period		   Liabilities
Incurred		   Liabilities
Settled		   Accretion
Expense		   Revisions to
Estimates		   Balance at End
of Period		  

Asset Retirement Obligations:

                                      

Year ended June 28, 2014

   $ 9.2     0.4     (1.0 )   0.4     (1.9 ) $ 7.1  

Year ended June 29, 2013

   $ 10.8     —     (1.8 )   0.5     (0.3 ) $ 9.2