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Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) In Millions, unless otherwise specified	3 Months Ended
	Aug. 26, 2012	Aug. 28, 2011
Statement of Stockholders' Equity [Abstract]
Stock option exercises, shares	0.5	0.8
Purchases of common stock for treasury, shares	1.0	1.9
Issuance of treasury stock under Employee Stock Purchase Plan and other plans, shares	0	0.1

Number of shares issued during the period as a result of an employee stock purchase plan.

Number of share options (or share units) exercised during the current period.