Restructuring Charges Restructuring Charges (Schedule Of Pre-Tax Charges And Remaining Costs 2011 Iniative) (Details) (2011 Initiatives [Member], USD $) In Millions, unless otherwise specified	28 Months Ended
	Oct. 27, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 74
Recognized as of end of period	(73)
Restructuring and Related Cost, Expected Cost Remaining	1
Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	41
Recognized as of end of period	(41)
Restructuring and Related Cost, Expected Cost Remaining
Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	23
Recognized as of end of period	(23)
Restructuring and Related Cost, Expected Cost Remaining
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	10
Recognized as of end of period	(9)
Restructuring and Related Cost, Expected Cost Remaining	$ 1