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Derivative Instruments (Schedule Of Derivatives At Fair Value) (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Total fair value of derivative assets		$ 0.6	$ 7.3
Total fair value of derivative liabilities		11.3	0.5
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Total fair value of derivative assets		0.2	6.4
Total fair value of derivative liabilities		8.7	0.3
Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts - Current [Member]
Derivative [Line Items]
Total fair value of derivative assets	[1]	0.2	5.9
Total fair value of derivative liabilities	[1]	8.3	0.2
Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts - Non-Current [Member]
Derivative [Line Items]
Total fair value of derivative assets		0.0	0.5
Total fair value of derivative liabilities		0.4	0.1
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts - Current [Member]
Derivative [Line Items]
Total fair value of derivative assets	[1]	0.4	0.9
Total fair value of derivative liabilities	[1]	$ 2.6	$ 0.2
[1] Derivative assets and liabilities that have maturity dates equal to or less than 12 months from the respective balance sheet dates were included in other current assets and accrued liabilities and other, respectively, on our consolidated balance sheets.

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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