Consolidated Statements of Common Stockholders' Equity (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
May 27, 2012	Feb. 26, 2012	Nov. 27, 2011	Aug. 28, 2011	May 29, 2011	Feb. 27, 2011	Nov. 28, 2010	Aug. 29, 2010	May 27, 2012	May 29, 2011	May 30, 2010
Dividends declared per common share	$ 0.24	$ 0.24	$ 0.24	$ 0.23	$ 0.23	$ 0.23	$ 0.23	$ 0.20	$ 0.95	$ 0.89	$ 0.79
Retained Earnings
Dividends declared per common share									$ 0.95	$ 0.89	$ 0.79

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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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration