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Earnings Per Share - Computation of Earnings Per Share Basic and Diluted (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2017 | Jul. 31, 2016 | Jul. 31, 2017 | Jul. 31, 2016
Numerator for basic and diluted EPS |  |  |  |
Net income attributable to Greif, Inc. | $ 43.9 | $ 46.1 | $ 85.3 | $ 66.4
Cash dividends | (24.7) | (24.7) | (73.9) | (74.0)
Undistributed net income (loss) attributable to Greif, Inc. | $ 19.2 | $ 21.4 | $ 11.4 | $ (7.6)

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