Taxes on Earnings Schedule Of Reconciliation Of Effective Income Tax Rate (Details)	12 Months Ended
	Aug. 02, 2015	Aug. 03, 2014	Jul. 28, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	2.20%	2.00%	1.10%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(2.40%)	(1.00%)	(2.60%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent	(0.70%)	0.00%	(0.10%)
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Percent	(2.80%)	(2.30%)	(2.70%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	(1.10%)	(1.40%)	(1.90%)
Effective Income Tax Rate Reconciliation, Percent	30.20%	32.30%	28.80%