Consolidated Balance Sheets (Parentheticals) (USD $)	Jan. 29, 2012	Jan. 30, 2011
Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 0.05	$ 0.05
Common stock, authorized	10,000,000,000	10,000,000,000
Common stock, issued	1,733,000,000	1,722,000,000
Common stock, outstanding	1,537,000,000	1,623,000,000
Treasury Stock, shares	196,000,000	99,000,000