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Supplemental Financial Statement Data Accumulated Other Comprehensive Income Roll Forward (Details) - USD ($)
$ in Millions
 3 Months Ended
Sep. 29, 2017
Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance, beginning of period $ (58)  
Other comprehensive income (loss) before reclassifications (4)  
Amounts reclassified from accumulated other comprehensive income (loss) 3  
Other comprehensive income (loss), net of tax (1) $ 12
Balance, end of period (59)  
Actuarial Pension Gains (Losses)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance, beginning of period (18)  
Other comprehensive income (loss) before reclassifications 0  
Amounts reclassified from accumulated other comprehensive income (loss) 0  
Other comprehensive income (loss), net of tax 0  
Balance, end of period (18)  
Foreign Currency Translation Gains (Losses)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance, beginning of period (39)  
Other comprehensive income (loss) before reclassifications (4)  
Amounts reclassified from accumulated other comprehensive income (loss) 0  
Other comprehensive income (loss), net of tax (4)  
Balance, end of period (43)  
Unrealized Gains (Losses) on Available for Sale Securities    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance, beginning of period 2  
Other comprehensive income (loss) before reclassifications (1)  
Amounts reclassified from accumulated other comprehensive income (loss) 0  
Other comprehensive income (loss), net of tax (1)  
Balance, end of period 1  
Unrealized Gains (Losses) on Derivative Contracts    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance, beginning of period (3)  
Other comprehensive income (loss) before reclassifications 1  
Amounts reclassified from accumulated other comprehensive income (loss) 3  
Other comprehensive income (loss), net of tax 4  
Balance, end of period $ 1