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Share Repurchase Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Disclosure Share Repurchase Activity [Abstract]
Number of shares repurchased	[1]	3.2	4.5	6.4	8.7
Total cost		$ 100	$ 100	$ 200	$ 200
Average per share cost including commissions (in dollars per share)		$ 30.95	$ 22.30	$ 31.08	$ 23.15
[1] Excludes shares withheld to settle employee statutory tax withholding related to the vesting of stock units.

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Disclosure - Share Repurchase Activity [Abstract]

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Total cost of shares repurchased divided by the total number of shares repurchased.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the par value method.

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