CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Cash flows from operating activities:
Net income	$ 413.2	$ 124.3	$ 194.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	234.4	242.5	206.1
Timberland gains	(95.7)	0.0	0.0
Non-cash asset impairment charges	8.9	18.5	7.8
Non-cash pension settlement charges	9.1	0.3	0.0
Gain on disposal of properties, plants and equipment, net	(3.7)	(19.2)	(13.9)
Loss on disposals of businesses, net	0.2	38.8	3.7
Unrealized foreign exchange (gain) loss	1.0	(4.2)	3.0
Deferred income tax (benefit) expense	(47.2)	16.7	2.1
Transition tax benefit	0.0	0.0	(0.8)
Debt extinguishment charges	0.0	0.0	14.0
Non-cash lease expense	40.0	57.4	0.0
Other, net	(2.4)	(3.0)	4.2
Increase (decrease) in cash from changes in certain assets and liabilities:
Trade accounts receivable	(247.5)	(9.1)	55.1
Inventories	(205.6)	27.1	33.9
Deferred purchase price on sold receivables	0.0	0.0	(6.9)
Accounts payable	230.4	38.1	(69.9)
Restructuring reserves	(1.4)	10.2	6.7
Operating leases	(43.5)	(56.8)	0.0
Pension and post-retirement benefit liabilities	(11.5)	(13.3)	(15.3)
Other, net	117.3	(13.6)	(34.5)
Net cash provided by operating activities	396.0	454.7	389.5
Cash flows from investing activities:
Acquisitions of companies, net of cash acquired	0.0	0.0	(1,857.9)
Purchases of properties, plants and equipment	(140.7)	(131.4)	(156.8)
Purchases of and investments in timber properties	(6.6)	(5.4)	(5.4)
Proceeds from the sale of properties, plants, equipment and other assets	16.2	33.4	28.7
Proceeds from the sale of businesses	2.7	80.9	1.5
Proceeds on timberlands	145.1	0.0	0.0
Collections on receivables of SPE	50.9	0.0	0.0
Payments for issuance of loans receivable	(15.0)	0.0	0.0
Other	(5.8)	(2.7)	0.6
Net cash provided by (used in) investing activities	46.8	(25.2)	(1,989.3)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	1,806.4	1,319.9	3,732.3
Payments on long-term debt	(2,176.4)	(1,578.4)	(2,075.6)
Proceeds on short-term borrowings, net	21.1	17.0	2.2
Proceeds from trade accounts receivable credit facility	106.0	76.8	181.4
Payments on trade accounts receivable credit facility	(23.1)	(122.9)	(89.2)
Payments for liabilities in SPE	(43.3)	0.0	0.0
Dividends paid to Greif, Inc. shareholders	(105.8)	(104.3)	(104.0)
Dividends paid to noncontrolling interests	(7.8)	(13.4)	(9.2)
Payments for debt extinguishment and issuance costs	0.0	0.0	(44.1)
Purchases of redeemable noncontrolling interest	0.0	0.0	(11.9)
Cash contribution from noncontrolling interest holder	0.0	0.0	1.6
Net cash provided by (used in) financing activities	(422.9)	(405.3)	1,583.5
Reclassification of cash to assets held for sale	0.5	0.0	0.0
Effects of exchange rates on cash	(1.7)	4.4	(0.6)
Net increase (decrease) in cash and cash equivalents	18.7	28.6	(16.9)
Cash and cash equivalents at beginning of year	105.9	77.3	94.2
Cash and cash equivalents at end of year	124.6	105.9	77.3
Non-cash transactions:
Capital expenditures included in accounts payable	38.7	17.2	18.6
Schedule of interest and income taxes paid:
Cash payments for interest expense	104.5	119.9	161.8
Cash payments for taxes	$ 54.7	$ 65.1	$ 71.4