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Subsequent Event (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 27, 2014
Subsequent Events [Abstract]
stock repurchase prepayment	$ 500.0
Stock Repurchased During Period, Shares	20.6

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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