CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Net revenue [Abstract]
Products	$ 1,424	$ 1,435	$ 2,804	$ 2,777
Services and other	308	298	608	591
Total net revenue	1,732	1,733	3,412	3,368
Costs and expenses:
Cost of products	674	650	1,311	1,251
Cost of services and other	167	165	330	325
Total costs	841	815	1,641	1,576
Research and development	181	166	360	328
Selling, general and administrative	497	452	981	893
Total costs and expenses	1,519	1,433	2,982	2,797
Income from operations	213	300	430	571
Interest income	1	2	3	5
Interest expense	(25)	(25)	(50)	(51)
Other income (expense), net	9	16	10	24
Income before taxes	198	293	393	549
Provision for income taxes	32	38	48	64
Net income	$ 166	$ 255	$ 345	$ 485
Net income per share:
Basic (in dollars per share)	$ 0.48	$ 0.73	$ 1.00	$ 1.39
Diluted (in dollars per share)	$ 0.48	$ 0.72	$ 0.98	$ 1.37
Weighted average shares used in computing net income per share:
Basic (in shares)	345	348	346	348
Diluted (in shares)	349	354	351	353
Cash dividends declared per common share	$ 0	$ 0	$ 0.22	$ 0.10