Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 26, 2013	Apr. 27, 2012	Apr. 26, 2013	Apr. 27, 2012
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 1,031,219	$ 1,032,572	$ 1,906,461	$ 1,918,219
Cost of sales	685,997	675,426	1,266,888	1,264,803
Restructuring charges - cost of sales	6,669	1,706	6,669	4,660
Gross profit	338,553	355,440	632,904	648,756
Research and development	32,199	29,442	62,982	56,335
Selling, general and administrative	173,183	192,618	343,220	366,183
Restructuring charges	2,651	2,712	2,651	4,855
Operating expenses	208,033	224,772	408,853	427,373
Income (loss) from operations	130,520	130,668	224,051	221,383
Interest expense	15,988	19,288	31,861	35,077
Other (income)/expense - net	27	366	977	(156)
Income (loss) before income taxes	114,505	111,014	191,213	186,462
Income taxes	37,597	34,474	59,276	54,140
Net income (loss)	$ 76,908	$ 76,540	$ 131,937	$ 132,322
Net income (loss) per common share - basic	$ 0.87	$ 0.83	$ 1.48	$ 1.43
Net income (loss) per common share - diluted	$ 0.84	$ 0.80	$ 1.44	$ 1.39
Average number of common shares outstanding
- basic	88,416,020	92,068,366	88,946,806	92,464,748
- diluted	91,165,745	95,094,369	91,781,907	95,342,549
Dividends paid per common share	$ 0.23	$ 0.20	$ 0.46	$ 0.40