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EARNINGS PER SHARE - Computation of Earnings Per Share Basic and Diluted (Detail) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Numerator for basic and diluted EPS
Net income attributable to Greif, Inc.	$ 29.7	$ 56.5
Cash dividends	(25.7)	(24.5)
Undistributed net income (loss) attributable to Greif, Inc.	$ 4.0	$ 32.0

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Undistributed net income attributable to Greif.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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