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Income Taxes (Accrued Interest and Penalties) (Details) - USD ($) $ in Millions	Jan. 28, 2018	Jan. 29, 2017
Income Tax Disclosure [Abstract]
Accrued interest and penalties	$ 134	$ 109

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- References

No definition available.

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ 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 (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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