Consolidated Statements of Changes in Shareholders' Investment (Parenthetical)		3 Months Ended	12 Months Ended
Feb. 09, 2016	Jan. 24, 2016 $ / shares	Jan. 25, 2015 $ / shares	Oct. 25, 2015 $ / shares
Declared cash dividends (in dollars per share)		$ 0.145	$ 0.125	$ 0.50
Common Stock
Stockholders' Equity Note, Stock Split, Conversion Ratio	2

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Stock Split
-URI http://asc.fasb.org/extlink&oid=6525746

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