Restructuring Charges (Schedule Of Pre-Tax Charge And Remaining Costs 2013 Iniatives) (Details) (2013 Initiatives [Member], USD $) In Millions, unless otherwise specified	13 Months Ended
	Oct. 27, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 150
Recognized as of end of period	(145)
Restructuring and Related Cost, Expected Cost Remaining	5
Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	36
Recognized as of end of period	(36)
Restructuring and Related Cost, Expected Cost Remaining
Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	99
Recognized as of end of period	(99)
Restructuring and Related Cost, Expected Cost Remaining
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	15
Recognized as of end of period	(10)
Restructuring and Related Cost, Expected Cost Remaining	$ 5