Represents the number of weeks in a fiscal year.

No definition available.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 225
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+ Details

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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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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
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-Subparagraph (a),(b)
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-Glossary Income Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6515339

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- Definition

The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- References

No definition available.

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Basis of presentation (Details) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2016 USD ($) $ / shares	Jul. 31, 2015 USD ($) $ / shares	Jul. 29, 2016 USD ($) $ / shares	Jul. 31, 2015 USD ($) $ / shares	Feb. 03, 2017 period	Jan. 29, 2016 period
Fiscal year, number of weeks \| period					53	52
Income tax benefit	$ (178,227)	$ (172,764)	$ (339,765)	$ (326,147)
Earnings Per Share, Diluted \| $ / shares	$ 1.08	$ 0.95	$ 2.11	$ 1.79
Merchandise inventories
LIFO (benefit)	$ (2,900)	$ (1,000)	$ (4,300)	$ (600)
New accounting guidance effect
Income tax benefit			$ 10,500
Earnings Per Share, Diluted \| $ / shares			$ 0.04
Tax benefit of share-based awards				$ 27,900