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Income Taxes (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Jun. 30, 2017
Jul. 01, 2016
Jul. 03, 2015
Jun. 30, 2016
Jun. 27, 2014
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]          
Income Tax Holiday, Aggregate Dollar Amount $ 163.0 $ 67.0 $ 349.0    
Tax benefit from exercise of stock options   0.6 2.0    
Increase (Decrease) in valuation allowance 18.0 (55.0) $ (41.0)    
Deferred tax asset, net, excluding intra-entity transfers 602.0        
Total net deferred tax assets $ 604.0 $ 606.0      
Domestic federal statutory rate (as a percent) 25.00% 25.00% 25.00%    
Income tax holiday tax incentive income tax benefits per share (in dollars per share) $ 0.54 $ 0.22 $ 1.05    
Deferred tax liability not recognized due to temporary difference, undistributed earnings of foreign subsidiaries $ 1,500.0        
Unremitted earnings of certain non-U.S. entities 7.0 $ 11.0      
Tax amount, if temporary difference were remitted to Ireland as a dividend 375.0        
Total gross unrecognized tax benefits excluding interest and penalties 74.0 76.0 $ 89.0   $ 120.0
Unrecognized tax benefits, if recognized, would impact effective tax rate 74.0 76.0      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 1.0 8.0 $ 26.0    
Accrued interest and penalties related to unrecognized tax benefits 4.0 $ 6.0      
Minimum [Member]          
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]          
Expected unrecognized tax benefits reduction 14.0        
U.S. Federal [Member]          
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]          
Net operating loss carryforwards 3,400.0        
Tax credit carryforwards 444.0        
NOL subject to annual limitation on use 560.0        
Tax credit carryforwards subject to annual limitation on use 101.0        
Aggregate annual limitation on use of NOL and tax credit carryforwards pursuant to U.S. tax law 45.0     $ 1.0  
State [Member]          
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]          
Net operating loss carryforwards 2,000.0        
Operating Loss Carryforwards Expiration Amount 68.0        
Tax credit carryforwards 105.0        
Non-U.S. [Member]          
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]          
Net operating loss carryforwards $ 200.0