COMBINED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME (Condensed) (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 736.8	$ 571.9
Cost of products sold	435.5	296.4
Gross profit	301.3	275.5
Selling, general and administrative expense	122.1	104.6
Advertising and sales promotion expense	46.8	40.9
Research and development expense	8.9	5.5
Amortization of intangible assets	13.8	3.2
Interest expense	51.0	48.2
Total Other items, net	0.0	(16.9)
Earnings before income taxes	58.7	90.0
Income tax provision	12.9	19.2
Net earnings from continuing operations	45.8	70.8
Net earnings from discontinued operations, net of income tax expense of $7.5 for the quarter ended December 31, 2019	0.3	0.0
Net earnings	46.1	70.8
Mandatory convertible preferred stock dividends	(4.0)	0.0
Net earnings attributable to common shareholders	$ 42.1	$ 70.8
Basic net (loss)/earnings per common share- continuing operations (in dollars per share)	$ 0.60	$ 1.19
Basic net loss per common share- discontinued operations (in dollars per share)	0.01	0
Basic net (loss)/earnings per common share (in dollars per share)	0.61	1.19
Diluted net (loss)/earnings per common share- continuing operations (in dollars per share)	0.60	1.16
Diluted net loss per common share- discontinued operations (in dollars per share)	0	0
Diluted net (loss)/earnings per common share (in dollars per share)	$ 0.60	$ 1.16
Weighted average shares of common stock - Basic (shares)	69.1	59.7
Weighted average shares of common stock - Diluted (shares)	70.2	61.0
Statements of Comprehensive Income:
Net earnings	$ 46.1	$ 70.8
Other comprehensive (loss)/income, net of tax expense/(benefit)
Foreign currency translation adjustments	30.0	(3.7)
Pension activity, net of tax of $0.5 and $0.3, respectively.	(0.2)	1.1
Deferred loss on hedging activity, net of tax of ($1.0) and ($1.0), respectively,	(4.6)	(3.3)
Total comprehensive income	$ 71.3	$ 64.9