CONSOLDIATED STATEMENTS OF CHANGES IN SHAREHOLDERS' INVESTMENT (Parenthetical) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended
Apr. 26, 2015	Apr. 27, 2014	Apr. 26, 2015	Apr. 27, 2014	Oct. 26, 2014
CONSOLDIATED STATEMENTS OF CHANGES IN SHAREHOLDERS' INVESTMENT
Declared cash dividends (in dollars per share)	$ 0.25	$ 0.20	$ 0.50	$ 0.40	$ 0.80

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration