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							1,668
Issuances under stock plans, Value			9,339
Stock-based compensation expense			12,442
Other issuances			138
Repurchases of treasury stock				(455)
Repurchases of Treasury Stock, Value				$ 12,148
Other comprehensive income (loss)		$ (8,863)			(8,863)
Cumulative effect of new accounting pronouncement (1)	[1]					28,130
Net income		78,837				78,837
Common Stock, Shares, Issued at Mar. 30, 2019							104,796
Treasury Stock, Shares at Mar. 30, 2019				(35,806)
Balance at Mar. 30, 2019		1,580,719	6,244,907	$ (803,514)	65,081	(3,925,755)
Balance at Dec. 29, 2018			6,232,372	$ (803,208)	70,093	(3,966,640)
Common Stock, Shares, Issued at Dec. 29, 2018							104,156
Treasury Stock, Shares at Dec. 29, 2018				(35,800)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares							640
Issuances under stock plans, Value			5,771
Stock-based compensation expense			6,626
Other issuances			138
Repurchases of treasury stock				(6)
Repurchases of Treasury Stock, Value				$ 306
Other comprehensive income (loss)		(5,012)			(5,012)
Cumulative effect of new accounting pronouncement (1)						0
Net income		40,885				40,885
Common Stock, Shares, Issued at Mar. 30, 2019							104,796
Treasury Stock, Shares at Mar. 30, 2019				(35,806)
Balance at Mar. 30, 2019		1,580,719	6,244,907	$ (803,514)	65,081	(3,925,755)
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							1,575
Issuances under stock plans, Value			5,172
Stock-based compensation expense			14,689
Other issuances			0
Repurchases of treasury stock				(3,093)
Repurchases of Treasury Stock, Value				$ 82,033
Other comprehensive income (loss)		(5,879)			(5,879)
Cumulative effect of new accounting pronouncement (1)						0
Net income		43,227				43,227
Common Stock, Shares, Issued at Mar. 28, 2020							107,126
Treasury Stock, Shares at Mar. 28, 2020				(38,924)
Balance at Mar. 28, 2020		1,617,749	6,287,370	$ (886,151)	36,380	(3,819,850)
Balance at Dec. 28, 2019			6,279,267	$ (821,668)	46,518	(3,824,732)
Common Stock, Shares, Issued at Dec. 28, 2019							106,841
Treasury Stock, Shares at Dec. 28, 2019				(36,384)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares							285
Issuances under stock plans, Value			320
Stock-based compensation expense			7,783
Other issuances			0
Repurchases of treasury stock				(2,540)
Repurchases of Treasury Stock, Value				$ 64,483
Other comprehensive income (loss)		(10,138)			(10,138)
Cumulative effect of new accounting pronouncement (1)						0
Net income		4,882				4,882
Common Stock, Shares, Issued at Mar. 28, 2020							107,126
Treasury Stock, Shares at Mar. 28, 2020				(38,924)
Balance at Mar. 28, 2020		$ 1,617,749	$ 6,287,370	$ (886,151)	$ 36,380	$ (3,819,850)

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