CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities:
Consolidated net income	$ 224.5	$ 266.9
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation, depletion and amortization	740.1	725.9
Deferred income tax benefit	(100.0)	(54.6)
Share-based compensation expense	39.7	51.1
401(k) match and company contribution in common stock	2.5	89.5
Pension and other postretirement funding more than expense (income)	(67.3)	(56.1)
Cash surrender value increase in excess of premiums paid	(15.0)	(33.8)
Gain on sale of sawmill		(16.5)
Gain on sale of investment		(14.7)
Other impairment adjustments	322.1	22.5
(Gain) loss on disposal of plant and equipment and other, net	(11.5)	2.8
Other, net	(34.7)	(19.3)
Change in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	(229.1)	(257.0)
Inventories	(133.4)	(79.9)
Other assets	(156.1)	(126.6)
Accounts payable	64.3	111.5
Income taxes	103.0	52.7
Accrued liabilities and other	(106.4)	187.2
Net cash provided by operating activities	642.7	851.6
Investing activities:
Capital expenditures	(354.1)	(303.0)
Cash paid for purchase of businesses, net of cash received	(7.0)
Proceeds from corporate owned life insurance	27.7	16.7
Proceeds from sale of sawmill		58.5
Proceeds from sale of investment		28.3
Proceeds from sale of property, plant and equipment	23.0	3.1
Proceeds from property, plant and equipment insurance settlement	1.7	1.7
Other, net	2.1	(0.5)
Net cash used for investing activities	(306.6)	(195.2)
Financing activities:
Additions to revolving credit facilities		395.0
Repayments of revolving credit facilities	(40.0)	(275.0)
Additions to debt	375.1	255.2
Repayments of debt	(416.2)	(857.0)
Changes in commercial paper, net	224.6
Other debt additions, net	4.8	7.0
Issuances of common stock, net of related tax withholdings	(9.2)	0.2
Purchases of common stock	(310.2)
Cash dividends paid to stockholders	(132.1)	(105.8)
Other, net	15.4	(4.2)
Net cash used for financing activities	(287.8)	(584.6)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	21.0	11.1
Increase in cash, cash equivalents and restricted cash	69.3	82.9
Cash, cash equivalents and restricted cash at beginning of period	290.9	251.1
Cash, cash equivalents and restricted cash at end of period	$ 360.2	$ 334.0