Capitalization (Details) (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Feb. 03, 2012	Jan. 28, 2011
Authorized shares of preferred stock	5,000,000
Par value, Preferred Stock	$ 0.01
Issued shares of preferred stock	0	0
Outstanding shares of preferred stock	0	0
Authorized shares of common stock	7,000,000,000	7,000,000,000
Par value, Common Stock	$ 0.01	$ 0.01
Amount of shares repurchased	$ 2.7
Remaining authorized common stock repurchase amount	$ 6.0