Addition to assets and liabilities from Accounting Standards Updates.

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Significant Accounting Policies [Line Items]

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- Definition

Amount of the cumulative effect on retained earnings net of related income tax effect.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
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The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions		6 Months Ended
	Feb. 04, 2018	Aug. 04, 2018
Accounting Standards Update 2016 16 [Member]
Significant Accounting Policies [Line Items]
Increase in deferred tax assets	$ 37
Accounting Standards Update 2014-09 [Member]
Significant Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	5
Cumulative Effect on Retained Earnings, Net of Tax	4
Accounting Standards Update 2014-09 [Member] \| Revenue Recognition Timing Change [Member]
Significant Accounting Policies [Line Items]
Cumulative Effect on Retained Earnings, Net of Tax	1
Accounting Standards Update 2014-09 [Member] \| Gift Card Breakage [Member]
Significant Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	4
Cumulative Effect on Retained Earnings, Net of Tax	$ 3
Maximum [Member] \| Scenario, Forecast [Member] \| Accounting Standards Update 2016 02 [Member]
Significant Accounting Policies [Line Items]
Addition to assets and liabilities from accounting standards update		$ 4,000
Minimum [Member] \| Scenario, Forecast [Member] \| Accounting Standards Update 2016 02 [Member]
Significant Accounting Policies [Line Items]
Addition to assets and liabilities from accounting standards update		$ 3,000