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Restructuring Initiatives (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
May. 02, 2015 | Apr. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |
Restructuring balance | $ 71,000,000 | $ 0
2015 Restructuring | SG&A |  |
Restructuring Cost and Reserve [Line Items] |  |
Severance and other benefits-related charges | $ 103,000,000 |

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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