CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Consolidated net income	$ 288.4	$ 301.7
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation, depletion and amortization	755.7	742.8
Cost of real estate sold	16.1	11.0
Deferred income tax expense	11.4	39.6
Share-based compensation expense	29.6	35.5
Pension and other postretirement funding (more) than expense (income)	(41.1)	(27.0)
Multiemployer pension withdrawal expense	0.9
Land and Development impairments		13.0
Other impairment adjustments	2.2	10.0
Gain on disposal of plant and equipment and other, net	(6.2)	(45.5)
Other, net	(11.3)	(46.3)
Change in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	(60.4)	117.3
Inventories	(63.2)	(67.5)
Other assets	(132.9)	(128.9)
Accounts payable	(106.7)	(143.4)
Income taxes	17.7	(27.0)
Accrued liabilities and other	(101.4)	(120.3)
Net cash provided by operating activities	598.8	665.0
Investing activities:
Capital expenditures	(616.2)	(625.4)
Cash paid related to business combinations, net of cash acquired		(3,349.3)
Investment in unconsolidated entities	(0.7)	(0.2)
Proceeds from sale of property, plant and equipment	21.3	105.3
Proceeds from property, plant and equipment insurance settlement	1.4	8.8
Other, net	4.9	10.2
Net cash used for investing activities	(589.3)	(3,850.6)
Financing activities:
Proceeds from issuance of notes		1,498.5
Additions to revolving credit facilities	375.0	192.2
Repayments of revolving credit facilities	(65.0)	(20.0)
Additions to debt	580.1	3,957.9
Repayments of debt	(208.2)	(3,209.6)
(Repayments) additions to commercial paper, net	(34.8)	588.3
Other debt additions, net	85.9	16.4
Issuances of common stock, net of related minimum tax withholdings	13.4	3.2
Purchases of common stock		(88.6)
Cash dividends paid to stockholders	(240.7)	(233.7)
Cash distributions paid to noncontrolling interests	(0.7)	(2.8)
Other, net	2.1	3.0
Net cash provided by financing activities	507.1	2,704.8
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(28.0)	(1.8)
Increase (decrease) in cash, cash equivalents and restricted cash	488.6	(482.6)
Cash, cash equivalents and restricted cash at beginning of period	151.6	636.8
Cash, cash equivalents and restricted cash at end of period	640.2	154.2
Supplemental disclosure of cash flow information:
Income taxes, net of refunds	75.1	94.3
Interest, net of amounts capitalized	$ 204.4	$ 202.9