Consolidated Statement of Changes in Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Sep. 24, 2011	$ 15,447	$ 1,499,616	$ 411,727	$ (14,575)	$ 1,912,215
Balance (in shares) at Sep. 24, 2011	154,466,463
Increase (Decrease) in Stockholders' Equity
Options exercised	94	3,300			3,394
Options exercised (in shares)	940,369
Issuance of common stock under employee stock purchase plan	30	8,668			8,698
Issuance of common stock under employee stock purchase plan (in shares)	301,971
Restricted stock awards and units	5	(5)
Restricted stock awards and units (in shares)	55,747
Issuance of common stock under deferred compensation plan	4	(4)
Issuance of common stock under deferred compensation plan (in shares)	37,005
Repurchase of common stock	(312)	(76,158)			(76,470)
Repurchase of common stock (in shares)	(3,120,700)
Stock compensation expense		17,868			17,868
Tax benefit from equity-based compensation plans		11,064			11,064
Deferred compensation expense		211			211
Adjustment of redeemable noncontrolling interests to redemption value			(3,155)		(3,155)
Other comprehensive income (loss), net of tax				24,775	24,775
Net income			362,628		362,628
Balance at Sep. 29, 2012	15,268	1,464,560	771,200	10,200	2,261,228
Balance (in shares) at Sep. 29, 2012	152,680,855
Increase (Decrease) in Stockholders' Equity
Options exercised	285	19,532			19,817
Options exercised (in shares)	2,849,308
Issuance of common stock under employee stock purchase plan	34	9,926			9,960
Issuance of common stock under employee stock purchase plan (in shares)	343,678
Restricted stock awards and units	3	(3)
Restricted stock awards and units (in shares)	34,761
Repurchase of common stock	(564)	(187,714)			(188,278)
Repurchase of common stock (in shares)	(5,642,793)
Stock compensation expense		26,081			26,081
Tax benefit from equity-based compensation plans		54,706			54,706
Deferred compensation expense		234			234
Adjustment of redeemable noncontrolling interests to redemption value			(2,025)		(2,025)
Other comprehensive income (loss), net of tax				(29,385)	(29,385)
Net income			483,232		483,232
Balance at Sep. 28, 2013	15,026	1,387,322	1,252,407	(19,185)	2,635,570
Balance (in shares) at Sep. 28, 2013	150,265,809				150,265,809
Increase (Decrease) in Stockholders' Equity
Sale of common stock	1,809	1,346,605			1,348,414
Sale of common stock (in shares)	18,091,139
Options exercised	187	27,930			28,117
Options exercised (in shares)	1,872,448
Issuance of common stock under employee stock purchase plan	18	12,546			12,564
Issuance of common stock under employee stock purchase plan (in shares)	170,531
Restricted stock awards and units	6	(6)
Restricted stock awards and units (in shares)	56,911
Repurchase of common stock	(814)	(1,051,616)			(1,052,430)
Repurchase of common stock (in shares)	(8,138,592)
Stock compensation expense		30,673			30,673
Tax benefit from equity-based compensation plans		55,218			55,218
Deferred compensation expense		209			209
Adjustment of redeemable noncontrolling interests to redemption value			(2,368)		(2,368)
Other comprehensive income (loss), net of tax				(34,866)	(34,866)
Net income			596,518		596,518
Cash dividends declared			(158,938)		(158,938)
Balance at Sep. 27, 2014	$ 16,232	$ 1,808,881	$ 1,687,619	$ (54,051)	$ 3,458,681
Balance (in shares) at Sep. 27, 2014	162,318,246				162,318,246