CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Net sales	$ 1,112.4	$ 897.0
Cost of products sold	889.8	724.2
Gross profit	222.6	172.8
Selling, general and administrative expenses	135.4	98.1
Restructuring charges	3.3	3.7
Acquisition and integration related costs	5.1	2.6
Non-cash asset impairment charges	0.1	2.1
Gain on disposal of properties, plants and equipment, net	(0.5)	(0.9)
Operating profit	79.2	67.2
Interest expense, net	30.7	11.7
Non-cash pension settlement income	(0.1)	0.0
Other (income) expense, net	1.3	(0.2)
Income before income tax expense and equity earnings of unconsolidated affiliates, net	47.3	55.7
Income tax expense	11.4	20.0
Equity earnings of unconsolidated affiliates, net of tax	(0.2)	(0.1)
Net income	36.1	35.8
Net income attributable to noncontrolling interests	(3.8)	(6.1)
Net income attributable to Greif, Inc.	$ 32.3	$ 29.7
Class A Common Stock
Basic earnings per share attributable to Greif, Inc. common shareholders:
Basic earnings per share attributable to Greif, Inc. common shareholders (usd per share)	$ 0.55	$ 0.51
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (usd per share)	$ 0.55	$ 0.51
Weighted-average number of common shares outstanding:
Weighted-average number of common shares outstanding, basic (shares)	26,260,943	25,991,433
Weighted-average number of common shares outstanding, diluted (shares)	26,414,280	25,991,433
Cash dividends declared per common share:
Cash dividends declared per common share (usd per share)	$ 0.44	$ 0.44
Class B Common Stock
Basic earnings per share attributable to Greif, Inc. common shareholders:
Basic earnings per share attributable to Greif, Inc. common shareholders (usd per share)	0.81	0.75
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (usd per share)	$ 0.81	$ 0.75
Weighted-average number of common shares outstanding:
Weighted-average number of common shares outstanding, basic (shares)	22,000,000.0	22,000,000.0
Weighted-average number of common shares outstanding, diluted (shares)	22,000,000.0	22,000,000.0
Cash dividends declared per common share:
Cash dividends declared per common share (usd per share)	$ 0.65	$ 0.65