Restructuring Charges (Schedule Of Pre-Tax Charge And Remaining Costs 2013 Iniatives) (Details) (2013 Initiatives [Member], USD $) In Millions, unless otherwise specified	4 Months Ended	7 Months Ended
	Jan. 27, 2013	Apr. 28, 2013
Restructuring Cost and Reserve [Line Items]
Total Program	$ 115	$ 120
Recognized as of end of period		(105)
Remaining Costs to be Recognized		15
Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Total Program		22
Recognized as of end of period		(22)
Remaining Costs to be Recognized		0
Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Total Program		86
Recognized as of end of period		(80)
Remaining Costs to be Recognized		6
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Total Program		12
Recognized as of end of period		(3)
Remaining Costs to be Recognized		$ 9