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CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares
shares in Millions
Oct. 31, 2019
Oct. 31, 2018
Stockholders' equity:    
Preferred stock par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock shares authorized (in shares) 125 125
Preferred Stock, Shares Issued (in shares) 0 0
Preferred Stock, Shares Outstanding (in shares) 0 0
Common stock par value (in dollars per share) $ 0.01 $ 0.01
Common stock shares authorized (in shares) 2,000 2,000
Common stock issued (in shares) 309 318