Restructuring (Narrative) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 27, 2012	Jul. 29, 2011	Jul. 27, 2012	Jul. 29, 2011	Oct. 28, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 16,379	$ 17,042
Restructuring charges per share after tax				$ 0.12
2008 Restructuring Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,346
Restructuring charges per share after tax				$ 0.01
2011 Restructuring Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6,864	14,333	16,379	15,696
Restructuring charges per share after tax	$ 0.05	$ 0.10	$ 0.12	$ 0.12	$ 0.24
2011 Restructuring Initiatives [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges per share after tax, incurred and forecasted	$ 0.40		$ 0.40
2011 Restructuring Initiatives [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges per share after tax, incurred and forecasted	$ 0.42		$ 0.42
Cost Of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	4,312	12,224	8,972	14,149
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,552	$ 1,960	$ 7,407	$ 2,893