Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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Fixed interest rate related to the interest rate derivative.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date the derivative contract matures, in CCYY-MM-DD format.

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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- Definition

Amount of gain recognized in the income statement from the hedging ineffectiveness of a fair value hedge.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Derivatives (Narrative) (Details) € in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 20, 2016 EUR (€)
4.00% Notes, Due October 1, 2026 [Member]
Derivative [Line Items]
Notes	$ 465.0	$ 494.7
Interest rate	4.00%	4.00%	4.00%
Cash Flow Hedging [Member] \| Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, fixed interest rate		1.76%
Notional value		$ 300.0
Derivative, maturity date		May 08, 2020
Gain on interest rate swap as a reduction to interest expense	$ 3.6
Interest rate swaps outstanding	$ 0.0
Cash Flow Hedging [Member] \| Commodity Swaps [Member]
Derivative [Line Items]
Derivative, maturity date	Feb. 28, 2021
Derivative net (loss) gain estimated to be reclassified from AOCI into earnings over the next 12 months	$ (0.2)
Cash Flow Hedging [Member] \| Foreign Exchange Contracts [Member]
Derivative [Line Items]
Notional value	$ 235.6	$ 261.6
Derivative, maturity date	Mar. 31, 2021
Derivative net (loss) gain estimated to be reclassified from AOCI into earnings over the next 12 months	$ (5.7)
Fair Value Hedging [Member]
Derivative [Line Items]
Posted cash collateral	0.0	0.0
Posted standby letters of credit	0.0	0.0
Net Investment Hedge [Member] \| 4.00% Notes, Due October 1, 2026 [Member]
Derivative [Line Items]
Notes \| €			€ 425
Interest rate			4.00%
Not Designated as Hedging [Member] \| Foreign Exchange Contracts [Member]
Derivative [Line Items]
Notional value	$ 837.5	$ 105.2
Derivative, maturity date	Oct. 25, 2019