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

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Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2014	Dec. 31, 2018	Dec. 31, 2017
Deferred gain/loss, net of tax, included in accumulated other comprehensive income (AOCI) related to the fair value of the Company's currency derivatives designated as accounting hedges	$ (1,069.8)	$ (919.8)	$ (1,069.8)	$ (919.8)		$ (964.1)	$ (778.8)
Repayments of Long-term Debt			7.5	1,122.9
Amount expected to be reclassified into interest expense over the next twelve months	0.7		0.7
Foreign Exchange Contract [Member]
Derivative, Notional Amount	600.0		600.0			600.0
Currency derivatives expected to be reclassified into earnings over the next twelve months	0.1		0.1
Interest Rate Swap [Member]
Derivative, Notional Amount	1,300.0		1,300.0
Commodity Contract [Member]
Derivative, Notional Amount	0.0		0.0
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months	0.0		0.0
Designated as Hedging Instrument [Member]
Deferred (loss) remaining in AOCI related to the interest rate locks	0.0	$ 0.0	0.0	$ 0.0
Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member]
Deferred gain/loss, net of tax, included in accumulated other comprehensive income (AOCI) related to the fair value of the Company's currency derivatives designated as accounting hedges	1.0		1.0			$ 0.5
Designated as Hedging Instrument [Member] \| Commodity Contract [Member]
Deferred gain/loss, net of tax, included in accumulated other comprehensive income (AOCI) related to the fair value of the Company's currency derivatives designated as accounting hedges	$ 0.0		0.0
Senior Notes Issued in 2013 [Member] \| Interest Rate Swap [Member]
Deferred (loss) remaining in AOCI related to the interest rate locks			$ 6.2		$ 6.7