CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Jul. 28, 2012	Jan. 28, 2012	Jul. 30, 2011
Property and equipment, accumulated depreciation	$ 5,297	$ 5,260	$ 5,166
Common stock, par value	$ 0.05	$ 0.05	$ 0.05
Common stock, shares authorized	2,300	2,300	2,300
Common stock, shares issued	1,106	1,106	1,106
Common stock, shares outstanding	479	485	527
Treasury stock, shares	627	621	579