CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Net sales	$ 1,564.3	$ 1,146.5
Cost of products sold	1,274.6	934.3
Gross profit	289.7	212.2
Selling, general and administrative expenses	151.6	134.3
Restructuring charges	3.5	3.1
Integration related costs	1.6	2.0
Non-cash asset impairment charges	62.4	1.3
(Gain) loss on disposal of properties, plants and equipment, net	(1.4)	1.6
Gain on disposal of businesses, net	0.0	(0.1)
Operating profit	72.0	70.0
Interest expense, net	17.1	25.2
Non-cash pension settlement charges	0.0	8.5
Other expense, net	2.0	0.0
Income before income tax expense and equity earnings of unconsolidated affiliates, net	52.9	36.3
Income tax expense	35.6	6.1
Equity earnings of unconsolidated affiliates, net of tax	(1.3)	(0.7)
Net income	18.6	30.9
Net income attributable to noncontrolling interests	(8.3)	(7.5)
Net income attributable to Greif, Inc.	$ 10.3	$ 23.4
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)	$ 0.17	$ 0.40
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (usd per share)	$ 0.18	$ 0.40
Weighted-average number of common shares outstanding:
Basic (shares)	26,573,932	26,456,071
Diluted (shares)	26,750,470	26,531,403
Cash dividends declared per common share:
Cash dividends declared per common share (in usd per share)	$ 0.46	$ 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)	0.25	0.59
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (usd per share)	$ 0.25	$ 0.59
Weighted-average number of common shares outstanding:
Basic (shares)	22,007,725	22,007,725
Diluted (shares)	22,007,725	22,007,725
Cash dividends declared per common share:
Cash dividends declared per common share (in usd per share)	$ 0.68	$ 0.65