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Derivative Instruments Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Apr. 29, 2017 | Apr. 30, 2016 | Jan. 28, 2017
Derivatives, Fair Value [Line Items] |  |  |
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax | $ 10 | $ (16) |
Interest Rate Fair Value Hedges | 2 | 10 | $ 2
Foreign Currency Cash Flow Hedge Asset at Fair Value | 27 | 11 | 18
Foreign Currency Cash Flow Hedge Liability at Fair Value | 1 | 0 | 1
Other Current Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Foreign Currency Cash Flow Hedge Asset at Fair Value | 27 | 0 | 18
Other Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Interest Rate Fair Value Hedges | 2 | 10 | 2
Foreign Currency Cash Flow Hedge Asset at Fair Value | $ 0 | $ 11 | $ 0

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- Definition Fair value as of the balance sheet date of all foreign currency derivative assets designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 + Details
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- Definition Fair value as of the balance sheet date of all foreign currency derivative liabilities designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 + Details
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- Definition Amount of net unrealized gain (loss) related to the change in fair value of foreign currency exchange rate derivatives designated as cash flow hedging instruments. Recorded in accumulated other comprehensive income to the extent that the cash flow hedge is determined to be effective. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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