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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Oct. 31, 2015
Jan. 31, 2015
Nov. 01, 2014
Property and equipment, accumulated depreciation $ 5,673 $ 5,532 $ 5,555
Common stock, par value (in dollars per share) $ 0.05 $ 0.05 $ 0.05
Common stock, shares authorized (in shares) 2,300 2,300 2,300
Common stock, shares issued (in shares) 404 421 424
Common stock, shares outstanding (in shares) 404 421 424