Acquisitions and Divestitures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2020	Mar. 31, 2019
Business Combinations [Abstract]
Business Combination, Consideration Transferred		$ 140.7
Repayments of Unsecured Debt		$ 13.2	$ 0.0	$ 13.2
Business Acquisition [Line Items]
Receivables	$ 6.9
Inventories			17.0
Other current assets			0.2
Property, plant and equipment			8.1
Indefinite-lived Intangible Assets Acquired	4.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	2.9
Consideration paid considered as cash flow used in financing	140.7
Payments for (Proceeds from) Other Investing Activities	127.5
Goodwill	80.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	5.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	11.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets			1.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities			$ 1.7
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			12 years
Above Market Leases [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	2.3
Patents [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	32.1
Customer-Related Intangible Assets [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 8.7