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Commitments and Contingencies (Details) - USD ($) $ in Millions | Oct. 31, 2015 | Jan. 31, 2015 | Nov. 01, 2014
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Commitments and Contingencies Disclosure [Abstract] |  |  |
Loss Contingency, Estimate of Possible Loss Related to Actions | $ 0 | $ 0 | $ 0

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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
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