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Share Repurchases - Additional Information (Details) - USD ($) $ in Millions	Aug. 01, 2015	Feb. 26, 2015	Jan. 31, 2015	Aug. 02, 2014
Disclosure Share Repurchases Additional Information [Abstract]
Stock Repurchase Program, Authorized Amount		$ 2,500
Share repurchases, remaining amount	$ 695
Stock Repurchase Program Amount Not Paid	$ 0		$ 15	$ 5

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- Definition

Disclosure - Share Repurchases - Additional Information [Abstract]

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Stock Repurchase Program Amount Not Paid.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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