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Share Repurchases	6 Months Ended
Share Repurchases	Jan. 26, 2014
Equity [Abstract]
Share Repurchases	Share Repurchases In June 2011, the Board authorized the purchase of up to $1,000 of company stock. This program has no expiration date. The company suspended purchases under this program in July 2012. Approximately $750 remained available under this program as of January 26, 2014. The company also repurchases shares to offset the impact of dilution from shares issued under the company’s stock compensation plans. During the six-month period ended January 26, 2014, the company repurchased approximately 2 million shares at a cost of $76. During the six-month period ended January 27, 2013, the company repurchased 2 million shares at a cost of $63.