CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Net sales	$ 1,622.1	$ 1,490.8	$ 4,853.7	$ 3,977.9
Cost of products sold	1,275.2	1,172.0	3,878.4	3,181.0
Gross profit	346.9	318.8	975.3	796.9
Selling, general and administrative expenses	141.6	142.6	440.6	423.7
Restructuring charges	3.1	3.7	10.3	18.8
Timberland gains	0.0	0.0	0.0	(95.7)
Integration related costs	2.2	2.4	5.8	6.2
Non-cash asset impairment charges	0.7	0.0	63.1	1.5
Gain on disposal of properties, plants and equipment, net	(6.4)	(3.0)	(8.1)	(1.3)
Gain on disposal of businesses, net	0.0	0.0	(4.2)	0.0
Operating profit	205.7	173.1	467.8	443.7
Interest expense, net	14.0	23.9	44.3	75.8
Debt extinguishment charges	0.0	0.0	25.4	0.0
Non-cash pension settlement charges	0.0	0.4	0.0	9.0
Other expense (income), net	7.3	(0.6)	4.9	2.2
Income before income tax expense and equity earnings of unconsolidated affiliates, net	184.4	149.4	393.2	356.7
Income tax expense	39.9	33.1	105.4	56.5
Equity earnings of unconsolidated affiliates, net of tax	(1.6)	(2.1)	(3.6)	(3.1)
Net income	146.1	118.4	291.4	303.3
Net income attributable to noncontrolling interests	(4.3)	(5.4)	(14.2)	(17.1)
Net income attributable to Greif, Inc.	$ 141.8	$ 113.0	$ 277.2	$ 286.2
Class A Common Stock
Basic earnings per share attributable to Greif, Inc. common shareholders:
Basic earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	$ 2.38	$ 1.90	$ 4.66	$ 4.81
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	$ 2.36	$ 1.89	$ 4.63	$ 4.80
Weighted-average number of common shares outstanding:
Basic (in shares)	26,207,808	26,550,924	26,466,619	26,517,064
Diluted (in shares)	26,626,983	26,704,889	26,721,681	26,636,944
Cash dividends declared per common share:
Cash dividends declared per common share (in usd per share)	$ 0.46	$ 0.44	$ 1.38	$ 1.32
Class B Common Stock
Basic earnings per share attributable to Greif, Inc. common shareholders:
Basic earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	3.58	2.85	6.98	7.21
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	$ 3.58	$ 2.85	$ 6.98	$ 7.21
Weighted-average number of common shares outstanding:
Basic (in shares)	22,007,725	22,007,725	22,007,725	22,007,725
Diluted (in shares)	22,007,725	22,007,725	22,007,725	22,007,725
Cash dividends declared per common share:
Cash dividends declared per common share (in usd per share)	$ 0.69	$ 0.66	$ 2.06	$ 1.97