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Derivative Instruments Derivative Instruments (Interest Rate Contracts - Fair Value Hedging Disclosures) (Details) (Fair Value Hedging [Member], Interest Rate Swap [Member], USD $) In Millions, unless otherwise specified | Aug. 02, 2014 | Feb. 01, 2014
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Fixed Rate 6.90% Notes Due July 2017 [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 100 | $ 200
Fixed Rate 8.50% Notes Due June 2019 [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 100 | $ 200

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration