Consolidated Statements Of Equity (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
Jul. 31, 2011	May 01, 2011	Jan. 30, 2011	Oct. 31, 2010	Aug. 01, 2010	May 02, 2010	Jan. 31, 2010	Nov. 01, 2009	Jul. 31, 2011	Aug. 01, 2010	Aug. 02, 2009
Consolidated Statements Of Equity
Dividends per share	$ 0.29	$ 0.29	$ 0.29	$ 0.275	$ 0.275	$ 0.275	$ 0.275	$ 0.25	$ 1.145	$ 1.075	$ 1

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=6959260&loc=d3e187085-122770

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Namespace Prefix:	us-gaap
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration