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Taxes on Earnings (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2016 | Jan. 30, 2016 | May 02, 2015
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits | $ 100.1 | $ 94.2 | $ 108.1
Income tax penalties and interest accrued | 20.3 | $ 18.8 | $ 25.1
Impact of recognizing taxes and interest related to unrecognized tax benefits | 49.4 |  |
Unrecognized tax benefits reduction resulting from lapse of applicable statute of limitations | $ 5.1 |  |
Maximum [Member] | Internal Revenue Service [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2015 |  |
Maximum [Member] | State [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2015 |  |
Minimum [Member] | Internal Revenue Service [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2012 |  |
Minimum [Member] | State [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2011 |  |

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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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