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Debt (Derivatives) (Narrative) (Details) - USD ($) $ in Millions	Jan. 28, 2018	Jan. 29, 2017
Cross Currency Swap [Member]
Derivative [Line Items]
Notional amount of derivative	$ 626	$ 626
Cross Currency Swap [Member] | Other Assets [Member]
Derivative [Line Items]
Asset fair value of cash flow hedge	233	258
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount of derivative	1,250	$ 1,000
Net Investment Hedging [Member]
Derivative [Line Items]
Notional amount of derivative	$ 300

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- 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=84234895&loc=SL5624163-113959

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- Details

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