Restructuring Charges (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		1 Months Ended	3 Months Ended				12 Months Ended	16 Months Ended			3 Months Ended		16 Months Ended	3 Months Ended		16 Months Ended
	Oct. 28, 2012	Oct. 30, 2011	Oct. 28, 2012 2013 Initiatives [Member]	Oct. 28, 2012 2013 Initiatives [Member]	Oct. 28, 2012 2011 Initiatives [Member]	Oct. 30, 2011 2011 Initiatives [Member]	Jul. 31, 2011 2011 Initiatives [Member]	Jul. 29, 2012 2011 Initiatives [Member]	Oct. 28, 2012 2011 Initiatives [Member]	Oct. 28, 2012 Camden New Jersey [Member] 2011 Initiatives [Member]	Oct. 28, 2012 Outsource Of U.S. Retail Merchandising [Member] 2011 Initiatives [Member]	Oct. 28, 2012 Sacramento, CA [Member]	Oct. 28, 2012 South Plainfield, NJ [Member]	Oct. 28, 2012 Moscow [Member] 2011 Initiatives [Member]	Oct. 28, 2012 U.S. Simple Meals [Member] 2013 Initiatives [Member]	Oct. 28, 2012 U.S. Beverages [Member] 2013 Initiatives [Member]	Oct. 28, 2012 Global Baking And Snacking [Member] 2011 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated				727	190							700	27
Positions eliminated									510	130	190			50
Restructuring charges	$ 22	$ 2		$ 20		$ 2	$ 63	$ 10
Restructuring Reserve, Accelerated Depreciation	21
Restructuring charges and related costs, after tax	27
Restructuring charges, after tax						1	41	6
Restructuring charges per diluted share							$ 0.12	$ 0.02
Restructuring and Related Cost, Expected Cost			115						75
Expected cash expenditures			38						50
Expected investment in capital expenditures			27						40
Payments for (Proceeds from) Productive Assets									21
Aggregate pre-tax costs expected to be incurred			$ 72						$ 2						$ 54	$ 18	$ 2