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. 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)	(557)
Ending balance at Mar. 29, 2019	10,214	$ 3	$ (1,424)	3,891	(55)	7,799
Ending balance (in shares) at Mar. 29, 2019		312	(19)
Beginning balance at Sep. 28, 2018	11,375	$ 3	$ (1,809)	4,085	(76)	9,172
Beginning balance (in shares) at Sep. 28, 2018		312	(23)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(487)					(487)
Employee stock plans	50		$ 159	(109)
Employee stock plans (in shares)			2
Stock-based compensation	79			79
Dividends to shareholders	(146)			7		(153)
Actuarial pension gain	1				1
Foreign currency translation adjustment	29				29
Net unrealized loss on derivative contracts	11				11
Ending balance at Dec. 28, 2018	10,912	$ 3	$ (1,650)	4,062	(35)	8,532
Ending balance (in shares) at Dec. 28, 2018		312	(21)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(581)					(581)
Employee stock plans	(35)		$ 226	(261)
Employee stock plans (in shares)			2
Stock-based compensation	84			84
Dividends to shareholders	(146)			6		(152)
Foreign currency translation adjustment	(1)				(1)
Net unrealized loss on derivative contracts	(19)				(19)
Ending balance at Mar. 29, 2019	10,214	$ 3	$ (1,424)	3,891	(55)	7,799
Ending balance (in shares) at Mar. 29, 2019		312	(19)
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)
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)	(398)
Dividends to shareholders	(448)
Ending balance at Apr. 03, 2020	9,243	$ 3	$ (898)	3,743	(183)	6,578
Ending balance (in shares) at Apr. 03, 2020		312	(12)
Beginning balance at Oct. 04, 2019	9,566	$ 3	$ (1,087)	3,728	(90)	7,012
Beginning balance (in shares) at Oct. 04, 2019		312	(14)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(139)					(139)
Employee stock plans	44		$ 125	(81)
Employee stock plans (in shares)			1
Stock-based compensation	77			77
Dividends to shareholders	(149)			7		(156)
Actuarial pension gain	1				1
Foreign currency translation adjustment	(13)				(13)
Net unrealized loss on derivative contracts	(8)				(8)
Ending balance at Jan. 03, 2020	9,379	$ 3	$ (962)	3,731	(110)	6,717
Ending balance (in shares) at Jan. 03, 2020		312	(13)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	17					17
Employee stock plans	(8)		$ 64	(72)
Employee stock plans (in shares)			1
Stock-based compensation	78			78
Dividends to shareholders	(150)			6		(156)
Actuarial pension gain	1				1
Foreign currency translation adjustment	(12)				(12)
Net unrealized loss on derivative contracts	(62)				(62)
Ending balance at Apr. 03, 2020	$ 9,243	$ 3	$ (898)	$ 3,743	$ (183)	$ 6,578
Ending balance (in shares) at Apr. 03, 2020		312	(12)