Increase in the fair value of the derivative or group of derivatives included in earnings in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5618551-113959

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Balance Type:	credit
Period Type:	duration

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- Definition

Decrease in the fair value of the derivative or group of derivatives included in earnings in the period.

+ References

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Data Type:	xbrli:monetaryItemType
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- Definition

The date the derivative matures.

+ References

No definition available.

+ Details

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- Definition

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

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Derivative Financial Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified		6 Months Ended				6 Months Ended		3 Months Ended
	Oct. 29, 2011	Oct. 29, 2011 Interest Rate Caps Maturing September 2018 [Member]	Oct. 29, 2011 Interest Rate Swaps Purchased [Member]	Oct. 29, 2011 Interest Rate Swaps Sold [Member]	Oct. 29, 2011 Hedging Interest Rate Risk [Member]	Oct. 29, 2011 Interest Rate Swap Agreement Maturing October 2017 [Member]	Oct. 29, 2011 Interest Rate Swap Agreement Maturing November 2011 [Member]	Oct. 29, 2011 Interest Rate Swap Agreement Maturing February 2012 [Member]	Oct. 30, 2010 Foreign Currency Contracts [Member]	Jul. 31, 2010 Foreign Currency Contracts [Member]
Derivative [Line Items]
Notional amount of derivatives	$ 110.0	$ 500.0				$ 75.0	$ 1.0	$ 1.4
Maturity date		Sep. 01, 2018				Oct. 01, 2017	Nov. 01, 2011	Feb. 01, 2012
Gain on derivative contract										0.1
Loss on derivative contract									$ 2.0
Number of interest rate caps			2	2	2