Restructuring Charges and Cost Savings Initiatives (Schedule Of Pre-Tax Charges) (Details) - 2015 Initiatives [Member] $ in Millions	Oct. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	$ 215
Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	129
Implementation and Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	$ 86