Condensed Consolidated Statements of Stockholder's Equity Statement - USD ($) shares in Thousands, $ in Thousands		Total	Common Stock and Additional Paid in Capital	Treasury Stock	Accumulated Other Comprehensive Income	Accumulated Deficit	Number of Common Shares
Balance at Sep. 29, 2018			$ 6,222,988	$ (791,366)	$ 73,944	$ (4,032,722)
Common Stock, Shares, Issued at Sep. 29, 2018							103,128
Treasury Stock, Shares at Sep. 29, 2018				(35,351)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares							2,281
Issuances under stock plans, Value			12,719
Stock-based compensation expense			20,578
Other issuances			138
Repurchases of treasury stock				(480)
Repurchases of Treasury Stock, Value				$ 12,752
Other comprehensive income (loss)		$ (15,943)			(15,943)
Cumulative effect of new accounting pronouncement (1)	[1]					28,130
Net income		121,758				121,758
Common Stock, Shares, Issued at Jun. 29, 2019							105,409
Treasury Stock, Shares at Jun. 29, 2019				(35,831)
Balance at Jun. 29, 2019		1,627,472	6,256,423	$ (804,118)	58,001	(3,882,834)
Balance at Mar. 30, 2019			6,244,907	$ (803,514)	65,081	(3,925,755)
Common Stock, Shares, Issued at Mar. 30, 2019							104,796
Treasury Stock, Shares at Mar. 30, 2019				(35,806)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares							613
Issuances under stock plans, Value			3,380
Stock-based compensation expense			8,136
Other issuances			0
Repurchases of treasury stock				(25)
Repurchases of Treasury Stock, Value				$ 604
Other comprehensive income (loss)		(7,080)			(7,080)
Cumulative effect of new accounting pronouncement (1)						0
Net income		42,921				42,921
Common Stock, Shares, Issued at Jun. 29, 2019							105,409
Treasury Stock, Shares at Jun. 29, 2019				(35,831)
Balance at Jun. 29, 2019		1,627,472	6,256,423	$ (804,118)	58,001	(3,882,834)
Balance at Sep. 28, 2019		1,642,573	6,267,509	$ (804,118)	42,259	(3,863,077)
Common Stock, Shares, Issued at Sep. 28, 2019							105,551
Treasury Stock, Shares at Sep. 28, 2019				(35,831)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares							1,803
Issuances under stock plans, Value			5,448
Stock-based compensation expense			22,043
Other issuances			0
Repurchases of treasury stock				(3,782)
Repurchases of Treasury Stock, Value				$ 100,100
Other comprehensive income (loss)		(4,589)			(4,589)
Cumulative effect of new accounting pronouncement (1)						0
Net income		88,107				88,107
Common Stock, Shares, Issued at Jun. 27, 2020							107,354
Treasury Stock, Shares at Jun. 27, 2020				(39,613)
Balance at Jun. 27, 2020		1,653,482	6,295,000	$ (904,218)	37,670	(3,774,970)
Balance at Mar. 28, 2020			6,287,370	$ (886,151)	36,380	(3,819,850)
Common Stock, Shares, Issued at Mar. 28, 2020							107,126
Treasury Stock, Shares at Mar. 28, 2020				(38,924)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares							228
Issuances under stock plans, Value			276
Stock-based compensation expense			7,354
Other issuances			0
Repurchases of treasury stock				(689)
Repurchases of Treasury Stock, Value				$ 18,067
Other comprehensive income (loss)		1,290			1,290
Cumulative effect of new accounting pronouncement (1)						0
Net income		44,880				44,880
Common Stock, Shares, Issued at Jun. 27, 2020							107,354
Treasury Stock, Shares at Jun. 27, 2020				(39,613)
Balance at Jun. 27, 2020		$ 1,653,482	$ 6,295,000	$ (904,218)	$ 37,670	$ (3,774,970)

[1] Due to the adoption of ASU 2014-09 "Revenue from Contracts with Customers (Topic 606)" using the modified retrospective approach.