CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Consolidated net income	$ 139.5	$ 139.8
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation, depletion and amortization	381.2	359.1
Cost of real estate sold	16.1	11.0
Deferred income tax expense	3.1	14.3
Share-based compensation expense	13.8	17.4
Pension and other postretirement funding (more) than expense (income)	(23.7)	(12.8)
Other impairment adjustments	2.2	2.8
Gain on disposal of plant and equipment and other, net	(0.9)	(43.2)
Other	(13.2)	(18.3)
Change in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	153.9	169.7
Inventories	(83.9)	(71.4)
Other assets	(71.1)	(17.8)
Accounts payable	(47.5)	(148.5)
Income taxes	(2.8)	(11.5)
Accrued liabilities and other	(35.5)	(87.5)
Net cash provided by operating activities	431.2	303.1
Investing activities:
Capital expenditures	(374.8)	(322.0)
Cash paid related to business combinations, net of cash acquired		(3,342.9)
Investment in unconsolidated entities	(0.3)
Proceeds from sale of property, plant and equipment	7.9	88.0
Proceeds from property, plant and equipment insurance settlement	1.4
Other	4.9	4.1
Net cash used for investing activities	(360.9)	(3,572.8)
Financing activities:
Proceeds from issuance of notes		1,498.5
(Repayments) additions to revolving credit facilities	(40.1)	133.6
Additions to debt	101.4	3,806.1
Repayments of debt	(4.0)	(2,847.9)
Changes in commercial paper, net	10.9	447.7
Other financing (repayments) additions, net	(16.2)	14.6
Issuances of common stock, net of related minimum tax withholdings	15.5	12.9
Purchases of common stock		(44.2)
Cash dividends paid to stockholders	(120.0)	(116.1)
Cash distributions paid to noncontrolling interests	(0.3)	(2.2)
Other	(8.5)	(6.4)
Net cash (used for) provided by financing activities	(61.3)	2,896.6
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(4.2)	(3.0)
Increase (decrease) in cash, cash equivalents and restricted cash	4.8	(376.1)
Cash, cash equivalents and restricted cash at beginning of period	151.6	636.8
Cash, cash equivalents and restricted cash at end of period	156.4	260.7
Supplemental disclosure of cash flow information:
Income taxes, net of refunds	45.1	55.8
Interest, net of amounts capitalized	$ 53.1	$ 25.0