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Repurchase of Common Stock (Details) (USD $) Share data in Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Jun. 30, 2011	May 04, 2013	May 05, 2012
Repurchase of Common Stock [Abstract]
Share repurchase program, authorized amount	$ 5,000,000,000
Stock Repurchased and Retired During Period, Shares		0	4.6
Stock Repurchased and Retired During Period, Value			115,000,000
Amount remained available for future repurchases		$ 4,000,000,000

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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