CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	Executive	Greif, Inc. Equity	Greif, Inc. Equity Executive	Capital Stock	Capital Stock Executive	Treasury Stock	Treasury Stock Executive	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non controlling interests
Beginning balance (in shares) at Oct. 31, 2021					48,559,000
Beginning balance at Oct. 31, 2021	$ 1,575.6		$ 1,514.3		$ 179.3		$ (134.1)		$ 1,825.6	$ (356.5)	$ 61.3
Beginning balance (in shares) at Oct. 31, 2021							28,283,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18.6		10.3						10.3		8.3
Other comprehensive income (loss):
Foreign currency translation	(31.5)		(27.2)							(27.2)	(4.3)
Derivative financial instruments, net of income tax expense/benefit	11.8		11.8							11.8
Minimum pension liability adjustment, net of income tax expense/benefit	3.1		3.1							3.1
Comprehensive income	2.0		(2.0)
Current period mark to redemption value of redeemable noncontrolling interest and other	5.0		5.0						5.0
Net income allocated to redeemable noncontrolling interests	0.4										0.4
Dividends paid to Greif, Inc. shareholders	(27.2)		(27.2)						(27.2)
Dividends paid to noncontrolling interests and other	(1.7)										(1.7)
Dividends earned on RSU shares	(0.8)		(0.8)						(0.8)
Long-term incentive shares issued (in shares)					46,000		(46,000)
Long-term incentive shares issued	2.8		2.8		$ 2.7		$ 0.1
Share based compensation	1.1		1.1		$ 1.1
Restricted stock (in shares)						3,000		(3,000)
Restricted stock		$ 0.1		$ 0.1		$ 0.1
Ending balance (in shares) at Jan. 31, 2022					48,608,000
Ending balance at Jan. 31, 2022	1,557.3		1,493.3		$ 183.2		$ (134.0)		1,812.9	(368.8)	64.0
Ending balance (in shares) at Jan. 31, 2022							28,234,000
Beginning balance (in shares) at Oct. 31, 2022					47,443,000
Beginning balance at Oct. 31, 2022	1,794.3		1,761.3		$ 173.5		$ (205.1)		2,095.2	(302.3)	33.0
Beginning balance (in shares) at Oct. 31, 2022							29,399,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	93.1		89.9						89.9		3.2
Other comprehensive income (loss):
Foreign currency translation	51.3		51.0							51.0	0.3
Derivative financial instruments, net of income tax expense/benefit	(25.7)		(25.7)							(25.7)
Minimum pension liability adjustment, net of income tax expense/benefit	(2.4)		(2.4)							(2.4)
Comprehensive income	116.3		112.8
Current period mark to redemption value of redeemable noncontrolling interest and other	0.8		0.8						0.8
Net income allocated to redeemable noncontrolling interests	0.3										0.3
Dividends paid to Greif, Inc. shareholders	(28.9)		(28.9)						(28.9)
Dividends earned on RSU shares	$ 0.4		0.4						0.4
Share repurchases (in shares)	402,926				(232,000)		232,000
Share repurchases	$ (17.8)		(17.8)				$ (17.8)
Long-term incentive shares issued (in shares)					331,000		(331,000)
Long-term incentive shares issued	15.6		15.6		$ 13.8		$ 1.8
Share based compensation	1.2		1.2		$ 1.2
Ending balance (in shares) at Jan. 31, 2023					47,542,000
Ending balance at Jan. 31, 2023	$ 1,882.2		$ 1,845.4		$ 188.5		$ (221.1)		$ 2,157.4	$ (279.4)	$ 36.8
Ending balance (in shares) at Jan. 31, 2023							29,300,000