Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance at Jun. 29, 2018	$ 11,531	$ 3	$ (1,444)	$ 4,254	$ (39)	$ 8,757
Beginning balance (in shares) at Jun. 29, 2018		312	16
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	511					511
Employee stock plans	(58)		$ 198	(256)
Employee stock plans (in shares)			1
Stock-based compensation	79			79
Repurchases of common stock	(563)		$ (563)
Repurchases of common stock (in shares)			(8)
Dividends to shareholders	(144)			8		(152)
Foreign currency translation adjustment	(37)				(37)
Ending balance at Sep. 28, 2018	11,375	$ 3	$ (1,809)	4,085	(76)	9,172
Ending balance (in shares) at Sep. 28, 2018		312	23
Beginning balance at Jun. 28, 2019	9,967	$ 3	$ (1,268)	3,851	(68)	7,449
Beginning balance (in shares) at Jun. 28, 2019		312	17
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(276)					(276)
Employee stock plans	(26)		$ 181	(207)
Employee stock plans (in shares)			3
Stock-based compensation	77			77
Dividends to shareholders	(149)			7		(156)
Actuarial pension gain	1				1
Foreign currency translation adjustment	4				4
Net unrealized loss on derivative contracts	(27)				(27)
Ending balance at Oct. 04, 2019	$ 9,566	$ 3	$ (1,087)	$ 3,728	$ (90)	$ 7,012
Ending balance (in shares) at Oct. 04, 2019		312	14