Consolidated Balance Sheets (Parenthetical) (USD $)	Jul. 29, 2012	Jan. 29, 2012
Statement of Financial Position [Abstract]
Common Stock, par value	$ 0.05
Common Stock, authorized	10,000,000,000
Common Stock, Shares, Issued	1,749,000,000	1,733,000,000
Common Stock, Shares, Outstanding	1,507,000,000	1,537,000,000
Treasury Stock, shares	242,000,000	196,000,000