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Earnings Per Share (Schedule of computation of basic and diluted net income (loss) per share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Apr. 02, 2021
Apr. 03, 2020
Apr. 02, 2021
Apr. 03, 2020
Apr. 03, 2020
Numerator:          
Net income $ 329 $ 320 $ 832 $ 838 $ 838
Number of shares used in per share calculations:          
Total shares for purposes of calculating basic net income per share 233 261 246 263  
Weighted-average effect of dilutive securities:          
Employee equity award plans 4 2 3 3  
Total shares for purpose of calculating diluted net income per share 237 263 249 266  
Net income per share:          
Basic (in dollars per share) $ 1.41 $ 1.23 $ 3.38 $ 3.19  
Diluted (in dollars per share) $ 1.39 $ 1.22 $ 3.34 $ 3.15