CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Net revenue [Abstract]
Products	$ 1,380	$ 1,342
Services and other	300	293
Total net revenue	1,680	1,635
Costs and expenses:
Cost of products	637	601
Cost of services and other	163	160
Total costs	800	761
Research and development	179	162
Selling, general and administrative	484	441
Total costs and expenses	1,463	1,364
Income from operations	217	271
Interest income	2	3
Interest expense	(25)	(26)
Other income (expense), net	1	8
Income before taxes	195	256
Provision for income taxes	16	26
Net income	$ 179	$ 230
Net income per share:
Basic (in dollars per share)	$ 0.52	$ 0.66
Diluted (in dollars per share)	$ 0.51	$ 0.65
Weighted average shares used in computing net income per share:
Basic (in shares)	347	348
Diluted (in shares)	352	352
Cash dividends declared per common share	$ 0.22	$ 0.10