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Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jul. 01, 2017
Net operating loss carryforwards      
Operating loss carryforwards   $ 117.7  
Undistributed earnings of certain foreign subsidiaries   276.7  
Estimated additional U.S. income or foreign withholding taxes that would have to be provided if earnings of foreign subsidiaries were repatriated to the U.S. $ 28.0    
Change in tax rate, deferred tax asset, tax benefit   4.5  
Change in tax rate, tax benefit   2.0  
Change in tax rate, change in deferred tax assets   734.9  
Change in tax rate, operating loss carryforwards   117.7  
Increase (decrease) in deferred tax asset valuation allowances 23.2 (712.9) $ (77.5)
Portion of unrecognized tax benefits, if recognized, would impact the effective tax rate 9.9    
Portion of unrecognized tax benefits, if recognized, would impact the valuation allowance 41.0    
Accrued interest and penalties related to unrecognized tax benefits 3.7 $ 1.9 $ 1.8
Increase in accrued interest and penalties related to unrecognized tax benefits 1.8    
Federal      
Net operating loss carryforwards      
Operating loss carryforwards 5,126.6    
Research and other tax credit carryforwards 111.4    
State      
Net operating loss carryforwards      
Operating loss carryforwards 722.1    
Research and other tax credit carryforwards 51.5    
Foreign      
Net operating loss carryforwards      
Operating loss carryforwards 603.5    
Research and other tax credit carryforwards $ 1.2