Effects Of Foreign Currency Movements (Schedule Of Foreign Currency Exchange Rate Effect Before Tax) (Details) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2012 PLN / US$ [Member] USD ($)	Mar. 31, 2012 RUR / US$ [Member] USD ($)	Mar. 31, 2012 EUR-Polish Zloty [Member] USD ($)	Mar. 31, 2012 EUR-Polish Zloty [Member] EUR (€)
Effects Of Foreign Currency Movements [Line Items]
Value of notional amount	$ 426	$ 264	$ 574	€ 430
Pre-tax impact of a 1% movement in exchange rate	$ 4.3	$ 2.6	$ 5.7

Aggregate notional amount of foreign currency exchange rate derivatives. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Name:	us-gaap_NotionalAmountOfForeignCurrencyDerivatives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant