Taxes on Earnings (Schedule of Reconciliation of Effective Income Tax Rate) (Details)	12 Months Ended
	Jul. 28, 2013	Jul. 29, 2012	Jul. 31, 2011
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes	1.10%	2.00%	1.60%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential	(2.60%)	(3.80%)	(1.70%)
Effective Income Tax Rate Reconciliation, Tax Settlements	(0.10%)	(0.10%)	(0.40%)
Effective Income Tax Rate Reconciliation, Deductions, Qualified Production Activities	(2.70%)	(1.90%)	(1.90%)
Effective Income Tax Rate Reconciliation, Other Adjustments	(1.90%)	(0.20%)	(0.70%)
Effective Income Tax Rate, Continuing Operations	28.80%	31.00%	31.90%