Derivative Instruments (Schedule Of Derivatives At Fair Value) (Details) (USD $) In Millions | Sep. 30, 2011 | Dec. 31, 2010 | ||||||
|---|---|---|---|---|---|---|---|---|
| Derivative [Line Items] | ||||||||
| Total fair value of derivative assets | $ 1.3 | $ 17.1 | ||||||
| Total fair value of derivative liabilities | 8.4 | 0.7 | ||||||
Designated As Hedging Instrument [Member] | ||||||||
| Derivative [Line Items] | ||||||||
| Total fair value of derivative assets | 1.3 | 16.9 | ||||||
| Total fair value of derivative liabilities | 8.3 | 0.7 | ||||||
Designated As Hedging Instrument [Member] | Foreign Currency Forward Contracts - Current [Member] | ||||||||
| Derivative [Line Items] | ||||||||
| Total fair value of derivative assets | 1.3 | [1] | 16.8 | [1] | ||||
| Total fair value of derivative liabilities | 7.8 | [1] | 0.6 | [1] | ||||
Designated As Hedging Instrument [Member] | Foreign Currency Forward Contracts - Non-Current [Member] | ||||||||
| Derivative [Line Items] | ||||||||
| Total fair value of derivative assets | 0.1 | [2] | ||||||
| Total fair value of derivative liabilities | 0.5 | [2] | 0.1 | [2] | ||||
Not Designated [Member] | ||||||||
| Derivative [Line Items] | ||||||||
| Total fair value of derivative assets | 0.2 | |||||||
| Total fair value of derivative liabilities | 0.1 | |||||||
Not Designated [Member] | Foreign Currency Forward Contracts - Current [Member] | ||||||||
| Derivative [Line Items] | ||||||||
| Total fair value of derivative assets | 0.2 | [1] | ||||||
| Total fair value of derivative liabilities | $ 0.1 | [1] | ||||||
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