Quarterly Results of Operations (unaudited) Summary of Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Jul. 03, 2020	Apr. 03, 2020	Jan. 03, 2020	Oct. 04, 2019	Jun. 28, 2019	Mar. 29, 2019	Dec. 28, 2018	Sep. 28, 2018	Jul. 03, 2020	Jun. 28, 2019	Jun. 29, 2018
Quarterly Financial Information Disclosure [Abstract]
Revenue, net	$ 4,287	$ 4,175	$ 4,234	$ 4,040	$ 3,634	$ 3,674	$ 4,233	$ 5,028	$ 16,736	$ 16,569	$ 20,647
Gross profit	1,083	1,005	935	758	465	579	1,044	1,664	3,781	3,752	7,705
Operating income (loss)	261	153	50	(129)	(381)	(394)	176	686	335	87	3,617
Net income (loss)	$ 148	$ 17	$ (139)	$ (276)	$ (197)	$ (581)	$ (487)	$ 511	$ (250)	$ (754)	$ 675
Basic (in dollars per share)	$ 0.49	$ 0.06	$ (0.47)	$ (0.93)	$ (0.67)	$ (1.99)	$ (1.68)	$ 1.75	$ (0.84)	$ (2.58)	$ 2.27
Diluted (in dollars per share)	$ 0.49	$ 0.06	$ (0.47)	$ (0.93)	$ (0.67)	$ (1.99)	$ (1.68)	$ 1.71	$ (0.84)	$ (2.58)	$ 2.20