Restructuring Charges and Asset Impairments (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		0 Months Ended	3 Months Ended			6 Months Ended		16 Months Ended
	Apr. 27, 2014	Apr. 28, 2013	Apr. 27, 2014	Apr. 28, 2013	Oct. 03, 2012 2012 Global Restructuring Plan [Member] positions	Apr. 27, 2014 2012 Global Restructuring Plan [Member] Severance and other employee-related costs [Member]	Jan. 26, 2014 2012 Global Restructuring Plan [Member] Severance and other employee-related costs [Member]	Apr. 28, 2013 2012 Global Restructuring Plan [Member] Severance and other employee-related costs [Member]	Apr. 27, 2014 2012 Global Restructuring Plan [Member] Severance and other employee-related costs [Member]	Apr. 28, 2013 2012 Global Restructuring Plan [Member] Severance and other employee-related costs [Member]	Jan. 26, 2014 2012 Global Restructuring Plan [Member] Severance and other employee-related costs [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in Global Workforce (in positions)					1,300
Restructuring charges and asset impairments	$ 0	$ 10	$ 7	$ 19		$ 0	$ 7	$ 4	$ 7	$ 8
Costs incurred to date											$ 152