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Stockholders' Equity (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		4 Months Ended
	May 17, 2018	Apr. 29, 2018	Apr. 30, 2017	May 17, 2018	Jan. 28, 2018
Accelerated Share Repurchases [Line Items]
Repurchases of common stock through accelerated share repurchase agreements		$ 1,121	$ 1,289
Treasury stock value		49,044			$ 48,196
Paid-in capital		10,017			$ 10,192
Q1 Accelerated Share Repurchase Agreement [Member]
Accelerated Share Repurchases [Line Items]
Repurchases of common stock through accelerated share repurchase agreements		$ 750
Treasury stock shares acquired		3.4
Treasury stock value		$ 598
Paid-in capital		$ 152
Q1 Accelerated Share Repurchase Agreement [Member] | Subsequent Event [Member]
Accelerated Share Repurchases [Line Items]
Treasury stock shares acquired	0.8			4.2

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Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 210
-SubTopic 10
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The cash outflow to reacquire common stock during the period.

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-Publisher FASB
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Number of shares that have been repurchased during the period and are being held in treasury.

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-Topic 505
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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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