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)
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-Article 12
-Section 13
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amount of time in which cash flow hedge gain (loss) will be reclassified to the income statement

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Face (par) amount of debt instrument at time of issuance.

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Derivative Instruments and Hedging Activities Narrative (Details) € in Millions, $ in Millions		3 Months Ended	9 Months Ended	12 Months Ended	31 Months Ended
	Mar. 15, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Apr. 30, 2020	Mar. 15, 2017 EUR (€)	May 03, 2012 USD ($)
Forecast [Member]
Schedule of Trading Securities and Other Trading Assets
Cash flow hedge gain (loss), recorded in AOCI to be reclassed within twelve months				$ 9.0
Term for expected gains recorded in AOCI				12 months
Maximum term of time in cash flow hedge					3 years
Fair Value Hedging [Member]
Schedule of Trading Securities and Other Trading Assets
Amount of gain (loss) recognized in income on derivative		$ (1.1)	$ (1.0)
Senior Notes [Member]
Schedule of Trading Securities and Other Trading Assets
Debt Instrument, Face Amount							$ 1,900.0
Two Thousand Seventeen USD Notes [Member] \| Senior Notes [Member]
Schedule of Trading Securities and Other Trading Assets
Debt Instrument, Face Amount	$ 1,000.0
Two Thousand Seventeen EUR Notes [Member] \| Senior Notes [Member]
Schedule of Trading Securities and Other Trading Assets
Debt Instrument, Face Amount \| €						€ 500.0
$500 million 1.90% notes due 2019 [Member] \| Senior Notes [Member]
Schedule of Trading Securities and Other Trading Assets
Debt Instrument, Interest Rate, Stated Percentage	1.90%					1.90%
Debt Instrument, Face Amount	$ 500.0
$500 million 2.25% notes due 2020 [Member] \| Senior Notes [Member]
Schedule of Trading Securities and Other Trading Assets
Debt Instrument, Interest Rate, Stated Percentage	2.25%					2.25%
Debt Instrument, Face Amount	$ 500.0
EUR 2017 Notes USD Equivalent [Member]
Schedule of Trading Securities and Other Trading Assets
Derivative, notional amount	530.0
Foreign currency forwards [Member]
Schedule of Trading Securities and Other Trading Assets
Derivative, Gain (Loss) on Derivative, Net	$ 8.3
Interest rate swaps [Member] \| Fair Value Hedging [Member] \| Interest expense, net [Member]
Schedule of Trading Securities and Other Trading Assets
Amount of gain (loss) recognized in income on derivative		$ (1.1)	$ (1.0)
Foreign Exchange Contract [Member]
Schedule of Trading Securities and Other Trading Assets
Derivative, notional amount \| €						€ 499.0