Fair Value (Financial Instruments Carried At Fair Value On A Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012		Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, Assets	$ 8.4	[1]	$ 12.6	[1]
Total, Assets	8.4		12.6
Derivatives, Liabilities	4.6	[1]	6.8	[1]
Contingent consideration arising from acquisitions, Liabilities	8.8	[2]	9.1	[2]
Total, Liabilities	13.4		15.9
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, Assets		[1]		[1]
Total, Assets
Derivatives, Liabilities		[1]		[1]
Contingent consideration arising from acquisitions, Liabilities		[2]		[2]
Total, Liabilities
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, Assets	8.4	[1]	12.6	[1]
Total, Assets	8.4		12.6
Derivatives, Liabilities	4.6	[1]	6.8	[1]
Total, Liabilities	4.6		6.8
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration arising from acquisitions, Liabilities	8.8	[2]	9.1	[2]
Total, Liabilities	$ 8.8		$ 9.1

[1] Represents interest rate swaps and FX forwards as more fully described in Note 6 to the financial statements

[2] Represents contingent consideration liabilities pursuant to the agreements for certain MA acquisitions which are more fully discussed in Note 7 to the consolidated financial statements