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New Accounting Pronouncement Share-based Compensation (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Apr. 29, 2017 | Apr. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Income Tax Expense (Benefit) | $ 24 | $ 81
Net Cash Provided by (Used for) Operating Activities | 7 | (43)
Accounting Standards Update 2016-09 [Member] | Adjustments for New Accounting Pronouncement [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Net Cash Provided by (Used for) Operating Activities |  | $ 71
Accounting Standards Update 2016-09 [Member] | Adjustments for New Accounting Pronouncement [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Income Tax Expense (Benefit) | $ 11 |

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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