Supplemental Financial Statement Data - Goodwill Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
Goodwill [Roll Forward]
Goodwill balance, beginning of period	$ 10,076	$ 10,075
Goodwill recorded in connection with an acquisition	14
Reduction in goodwill in connection with disposition of business	(21)
Foreign currency translation adjustment	(2)	1
Goodwill balance, end of period	$ 10,067	$ 10,076