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Consolidated Condensed Balance Sheets (Unaudited) (Parenthetical) - $ / shares | Jan. 31, 2019 | Oct. 31, 2018
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Statement of Financial Position [Abstract] |  |
Preferred stock, par value (usd per share) | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 300,000,000 | 300,000,000
Preferred stock, shares issued | 0 | 0
Common stock, par value (usd per share) | $ 0.01 | $ 0.01
Common stock, shares authorized | 9,600,000,000 | 9,600,000,000
Common stock, shares issued | 1,539,000,000 | 1,560,000,000
Common stock, shares outstanding | 1,539,000,000 | 1,560,000,000

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