Stockholders' Equity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Feb. 26, 2012	Feb. 26, 2012
Authorization to repurchase common stock	187.4	187.4
Total repurchased shares of common stock	170.5	170.5
Common stock repurchased, shares	1.8	7.9
Common stock repurchased, total cost	$ 77.9	$ 357.0

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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