Financial Instruments And Risk Management (Narrative) (Details) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended
	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2010 EUR (€)	Dec. 31, 2011 Interest Rate Swaps [Member] USD ($)	Dec. 31, 2011 6.0% Senior Notes Due 2018 [Member] USD ($)	Dec. 31, 2011 Floating-Rate Debt Interest Rate Swaps [Member] USD ($)	Dec. 31, 2010 Floating-Rate Debt Interest Rate Swaps [Member] USD ($)	Dec. 31, 2011 Fixed-Rate Debt Interest Rate Swaps [Member] USD ($)	Dec. 31, 2011 U.S. Term Loans [Member]	Dec. 31, 2011 January 2012 Until January 2014 [Member]	Dec. 31, 2011 January 2012 Until January 2014 [Member] U.S. Term Loans [Member] USD ($)	Dec. 31, 2011 January 2012 Until January 2014 [Member] U.S. Term Loans [Member] Interest Rate Swaps [Member]	Dec. 31, 2011 March 2012 Until March 2014 [Member]	Dec. 31, 2011 March 2012 Until March 2014 [Member] U.S. Term Loans [Member] USD ($)	Dec. 31, 2011 March 2012 Until March 2014 [Member] U.S. Term Loans [Member] Interest Rate Swaps [Member]
Derivative [Line Items]
Borrowings under senior credit agreement that are designated as a hedge of net investment		$ 909.3	€ 679.2
Total notional amount of interest rate swaps					500.0	500.0	767.7	500.0			500.0			350.0
Debt instrument description of fixed rate basis									0.604%			0.604%			0.4504%
Interest rate					6.00%
Maturity period					2018
Aggregate fair value of all derivative contracts that are in liability position	29.1
Total fair value of convertible note hedge	460.0
Amount of pre-tax net losses on cash flow hedges to be reclassified from AOCE into earnings	40.8
Amounts reclassified from accumulated other comprehensive income to other income (expense) net				$ 13.9
Current basis points										2.00%			2.00%