Financial Instruments And Risk Management (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended				9 Months Ended						3 Months Ended	6 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 19, 2012 U.S. Term Loans	Jan. 17, 2012 U.S. Term Loans	Dec. 31, 2011 U.S. Term Loans	Sep. 30, 2011 2018 Senior Notes	Jun. 30, 2012 2018 Senior Notes	Jan. 18, 2011 2018 Senior Notes	Jun. 30, 2012 Floating-Rate Debt Interest Rate Swaps	Dec. 31, 2011 Floating-Rate Debt Interest Rate Swaps	Jun. 30, 2012 Fixed-Rate Debt Interest Rate Swaps	Jun. 30, 2012 Contingent consideration	Jun. 30, 2012 Contingent consideration	Jun. 30, 2012 Credit-risk-related contingent features	Jun. 30, 2012 Maximum	Jun. 30, 2012 Minimum
Derivative [Line Items]
Total notional amount of interest rate swaps		$ 750.0	$ 350.0	$ 500.0				$ 850.0	$ 500.0	$ 500.0
Debt instrument, maturity date	Sep. 15, 2015				Nov. 15, 2018
Principal amount of debt instrument							500.0
Interest rate						6.00%
Aggregate fair value of all derivative contracts that are in net asset position													32.5
Total fair value of convertible note hedge	426.1
Pre-tax net losses on cash flow hedges reclassified from AOCE into earnings	53.0
Discount rates														10.40%	3.30%
Contingent consideration accretion expense											7.5	15.7
Fair value adjustment to contingent consideration	$ 1.5