Warranty, Guarantees, Commitments and Contingencies (Narrative) (Details) $ in Millions	12 Months Ended
	Oct. 25, 2015 USD ($)	Oct. 26, 2014 USD ($)	Oct. 27, 2013 USD ($)	Feb. 07, 2013 employee
Guarantor Obligations [Line Items]
Total rent expense	$ 32	$ 37	$ 36
Products warranty period, General	12 months
Maximum potential amount of future payments for letters of credit or other guarantee instruments	$ 58
Parent guarantees to banks	100
Number of employees acquitted | employee				9
Number of employees found guilty | employee				1
Financial Guarantee | Wholly owned foreign subsidiary
Guarantor Obligations [Line Items]
Other debt	$ 800