Restructuring Charges and Asset Impairments (Restructuring and Asset Impairment Charges) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 26, 2014	Oct. 27, 2013	Oct. 28, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	$ 5	$ 63	$ 168
Silicon Systems Group [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	0	1	4
Applied Global Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	0	2	15
Energy and Environmental Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	0	25	38
Corporate Unallocated [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	$ 5	$ 35	$ 111