CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
May 02, 2015
Jan. 31, 2015
May 03, 2014
Statement of Financial Position [Abstract]      
Accumulated depreciation $ (3,669) $ (3,617) $ (3,439)
Common stock, shares authorized 1,250,000,000 1,250,000,000 1,250,000,000
Common stock, par value per share $ 0.50 $ 0.50 $ 0.5
Common stock, shares issued 305,300,000 304,900,000 304,800,000
Common stock, shares outstanding 305,300,000 304,900,000 304,800,000