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
	Oct. 04, 2019	Sep. 28, 2018
Numerator:
Net income	$ 200	$ 450
Number of shares used in per share calculations:
Total shares for purposes of calculating basic net income per share	266	287
Weighted-average effect of dilutive securities:
Employee equity award plans	4	5
Total shares for purpose of calculating diluted net income per share	270	292
Net income per share:
Basic (in dollars per share)	$ 0.75	$ 1.57
Diluted (in dollars per share)	$ 0.74	$ 1.54
Stock Compensation Plan [Member]
Net income per share:
Antidilutive securities excluded from computation of Earnings Per Share, amount	0	0