CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Net sales	$ 1,308.9	$ 1,667.3	$ 2,579.9	$ 3,231.6
Cost of products sold	997.1	1,328.6	2,016.5	2,603.2
Gross profit	311.8	338.7	563.4	628.4
Selling, general and administrative expenses	137.2	147.4	276.6	299.0
Restructuring charges	2.4	3.7	4.8	7.2
Acquisition and integration related costs	4.6	2.0	12.1	3.6
Non-cash asset impairment charges	1.3	0.0	1.8	62.4
Gain on disposal of properties, plants and equipment, net	(5.0)	(0.3)	(5.0)	(1.7)
Gain on disposals of businesses, net	(9.8)	(4.2)	(64.4)	(4.2)
Operating profit	181.1	190.1	337.5	262.1
Interest expense, net	23.4	13.2	46.2	30.3
Debt extinguishment charges	0.0	25.4	0.0	25.4
Other expense (income), net	2.9	(4.4)	6.2	(2.4)
Income before income tax expense and equity earnings of unconsolidated affiliates, net	154.8	155.9	285.1	208.8
Income tax expense	39.1	29.9	76.8	65.5
Equity earnings of unconsolidated affiliates, net of tax	(0.3)	(0.7)	(0.8)	(2.0)
Net income	116.0	126.7	209.1	145.3
Net income attributable to noncontrolling interests	(4.8)	(1.6)	(8.0)	(9.9)
Net income attributable to Greif, Inc.	$ 111.2	$ 125.1	$ 201.1	$ 135.4
Class A Common Stock
Basic earnings per share attributable to Greif, Inc. common shareholders:
Basic earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	$ 1.91	$ 2.11	$ 3.46	$ 2.28
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	$ 1.90	$ 2.09	$ 3.44	$ 2.27
Weighted-average number of common shares outstanding:
Basic (in shares)	25,771,973	26,618,116	25,712,178	26,596,024
Diluted (in shares)	26,185,895	26,813,014	25,986,677	26,776,546
Cash dividends declared per common share:
Cash dividends declared per common share (in usd per share)	$ 0.50	$ 0.46	$ 1.00	$ 0.92
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)	2.88	3.15	5.19	3.40
Diluted earnings per share attributable to Greif, Inc. common shareholders:
Diluted earnings per share attributable to Greif, Inc. common shareholders (in usd per share)	$ 2.88	$ 3.15	$ 5.19	$ 3.40
Weighted-average number of common shares outstanding:
Basic (in shares)	21,495,741	22,007,725	21,608,671	22,007,725
Diluted (in shares)	21,495,741	22,007,725	21,608,671	22,007,725
Cash dividends declared per common share:
Cash dividends declared per common share (in usd per share)	$ 0.75	$ 0.69	$ 1.49	$ 1.37