Employee Stock Plans (Activity Of Employee Stock Plans) (Details) (USD $) In Thousands, except Per Share data	12 Months Ended
	Sep. 30, 2011		Oct. 01, 2010		Oct. 02, 2009		Sep. 26, 2008
Employee Stock Plans [Abstract]
Shares Available for Grant, beginning balance	8,407		5,352		3,523
Shares Available for Grant, Authorized			5,500		4,200
Shares Available for Grant, Granted	(108)	[1]	(2,661)	[1]	(2,575)	[1]
Shares Available for Grant, Canceled, expired or forfeited	125	[2]	216	[2]	204	[2]
Shares Available for Grant, Exercised	0		0		0
Shares Available for Grant, ending balance	8,424		8,407		5,352
Number of Shares, beginning balance	10,174		11,853		11,957
Number of Shares, Granted	48	[1]	1,113	[1]	1,070	[1]
Number of Shares, Canceled, expired or forfeited	(46)	[2]	(141)	[2]	(146)	[2]
Number of Shares, Exercised	(3,259)		(2,651)		(1,028)
Number of Shares, ending balance	6,917		10,174		11,853
Number of shares, exercisable	6,188		8,449		10,140		9,734
Weighted average exercise price, exercisable	$ 45.42		$ 43.16		$ 40.18		$ 35.91
Weighted average Exercise price, beginning balance	$ 44.03		$ 40.59		$ 38.79
Weighted Average Exercise Price, Granted	$ 69.67	[1]	$ 52.59	[1]	$ 37.17	[1]
Weighted Average Exercise Price, Canceled, expired or forfeited	$ 48.64	[2]	$ 51.13	[2]	$ 46.45	[2]
Weighted Average Exercise Price, Exercised	$ 40.38		$ 31.85		$ 15.34
Weighted average Exercise Price, ending balance	$ 45.90		$ 44.03		$ 40.59

[1] The difference between the number of shares granted listed in the column headed "Shares Available for Grant" and the number of shares granted listed in the column headed "Options Outstanding—Number of Shares" represents the awards of deferred stock units, restricted stock units and shares of restricted common stock. Awards other than stock options were counted against the shares available for grant limit as 2.5 shares for every one awarded.

[2] The difference between the number of cancelled or expired shares listed in the column headed "Shares Available for Grant" and the number of cancelled or expired shares listed in the column headed "Options Outstanding—Number of Shares" represents (a) the cancellation of shares of restricted common stock and restricted stock units due to employee terminations and (b) the cancellation of shares of restricted common stock that were tendered to VMS to satisfy employee tax withholding obligations upon vesting of restricted common stock.