Balance Sheet Detail (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended					3 Months Ended			9 Months Ended
	Jul. 31, 2011	Jul. 29, 2012	Jul. 31, 2011	Jul. 29, 2012 Building improvements [Member] Y	Jul. 29, 2012 Demonstration and manufacturing equipment [Member] Y	Jul. 29, 2012 Furniture, fixtures and other equipment [Member] Y	Jul. 31, 2011 North America [Member]	Jan. 30, 2011 North America [Member]	Jul. 29, 2012 EES Restructuring Plan [Member]	Jul. 29, 2012 EES Restructuring Plan [Member]
Balance Sheet Detail (Textual) [Abstract]
Useful Life, minimum (in years)				3	3	3
Useful Life, maximum (in years)				30	5	15
Asset impairments			$ 30						$ 11	$ 11
Proceeds from sale of property		0	126				60	39
Gain (loss) incurred on sale of property							28	(1)
Proceeds from sale of property held for sale	27
Untendered shares obligation		$ 13