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Earnings Per Share - Computation of Earnings Per Share Basic and Diluted (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Numerator for basic and diluted EPS    
Net income attributable to Greif, Inc. $ 30.1us-gaap_NetIncomeLoss $ 30.7us-gaap_NetIncomeLoss
Cash dividends 24.5us-gaap_DividendsCommonStockCash 24.4us-gaap_DividendsCommonStockCash
Undistributed net income attributable to Greif, Inc. $ 5.6gef_UndistributedNetIncomeAttributableToParent $ 6.3gef_UndistributedNetIncomeAttributableToParent