Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Cash Flow from Operating Activities
Net earnings	$ 114.7	$ 99.5	$ 117.8
Depreciation, Depletion and Amortization	91.4	89.9	87.1
Share-based compensation expense	27.5	23.8	27.3
Deferred income taxes	(4.5)	(13.7)	9.6
Deferred compensation payments	(4.9)	(7.3)	(9.3)
Loss on sale of assets	2.5	1.5	0.9
Defined benefit settlement loss	(7.9)	0.0	0.0
Cost of early retirement of long-term debt	0.0	0.0	(26.1)
Other, net	(23.5)	(9.6)	(2.5)
Accounts receivable, net	31.0	(6.6)	3.7
Inventories	(32.4)	(111.3)	(28.8)
Other current assets	20.8	(11.5)	(13.8)
Accounts payable	(30.2)	29.3	24.3
Other current liabilities	15.8	18.0	(13.4)
Net cash from operating activities	216.1	102.0	229.0
Cash flow from Investing Activities
Capital expenditures	(49.5)	(56.4)	(56.8)
Acquisitions, net of cash acquired	0.0	(309.4)	(0.3)
Proceeds from sale of Infant Care business	0.0	5.0	7.5
Collection of deferred purchase price from accounts receivable sold	2.7	6.9	2.6
Other, net	(3.7)	(1.5)	(1.7)
Net cash used by investing activities	(50.5)	(355.4)	(48.7)
Cash flow from Financing Activities
Cash proceeds from debt with original maturities greater than 90 days	841.0	707.0	0.0
Cash payments on debt with original maturities greater than 90 days	(874.0)	(552.0)	0.0
Cash proceeds from the issuance of Senior Notes due 2029	0.0	0.0	500.0
Cash payments on Senior Notes due 2022	0.0	0.0	500.0
Net (decrease) increase in debt with original maturities of 90 days or less	0.0	(3.9)	4.2
Cost of early retirement of long-term debt	0.0	0.0	(26.1)
Debt issuance costs for Senior Notes due 2029	0.0	0.0	(6.5)
Repurchase of shares	(75.2)	(125.3)	(9.2)
Dividends paid	(31.5)	(32.6)	(25.6)
Employee shares withheld for taxes	(9.0)	(10.7)	(4.2)
Proceeds from (Repayments of) Accounts Receivable Securitization	2.3	(0.8)	2.4
Other, net	(0.1)	0.7	(0.4)
Net cash used by financing activities	(146.5)	(17.6)	(65.4)
Effect of exchange rate changes on cash	8.6	(19.5)	(0.4)
Net increase (decrease) in cash and cash equivalents	27.7	(290.5)	114.5
Cash and cash equivalents, beginning	188.7	479.2	364.7
Cash and cash equivalents, ending	216.4	188.7	479.2
Supplemental Cash Flow Information [Abstract]
Cash paid for interest, net	74.3	68.4	61.0
Cash paid for income taxes, net	$ 45.8	$ 23.8	$ 25.4