Debt And Money Market Securities (Schedule Of Line Of Credit Facilities) (Details) (USD $)	12 Months Ended			12 Months Ended
	Oct. 28, 2011	Jan. 28, 2011	Oct. 29, 2010	Oct. 28, 2011 Bank Syndicate Facility Due At December 2014 [Member]		Oct. 29, 2010 Bank Syndicate Facility Due At December 2014 [Member]		Oct. 28, 2011 Bilateral Facility Due At June 2012 [Member]	Oct. 29, 2010 Bilateral Facility Due At June 2012 [Member]	Oct. 28, 2011 Bilateral Facility Due At September 2013 [Member]	Oct. 29, 2010 Bilateral Facility Due At September 2013 [Member]	Oct. 28, 2011 Uncommitted Bank Lines Of Credit [Member]	Oct. 29, 2010 Uncommitted Bank Lines Of Credit [Member]	Oct. 28, 2011 Total Unsecured Committed Revolving Credit [Member]	Oct. 29, 2010 Total Unsecured Committed Revolving Credit [Member]
Line of credit facility, expiration date	June 30, 2012			December 2014		December 2014		June 2012	June 2012	September 2013	September 2013
Total Outstanding	$ 244,622,000		$ 138,802,000	$ 153,955,000	[1]	$ 50,000,000	[1]	$ 7,803,000	$ 7,751,000	$ 67,024,000	$ 72,963,000	$ 15,840,000	$ 8,088,000	$ 228,782,000	$ 130,714,000
Committed Facility Size	$ 817,985,000	$ 550,000	$ 702,221,000	$ 550,000,000	[1]	$ 475,000,000	[1]	$ 14,631,000	$ 14,534,000	$ 87,786,000	$ 87,201,000	$ 165,568,000	$ 125,486,000	$ 652,417,000	$ 576,735,000

[1] Our bank syndicate facility includes $153,955 and $0 of commercial paper as of October 28, 2011 and October 29, 2010, respectively. We have a $350,000 commercial paper program backstopped by our $550,000 credit facility