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)	24
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)
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)
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)	(415)
Dividends to shareholders	(298)
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)
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)