Commitments and Contingencies (Commitments and Loss Contingency) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Legal and other proceedings
Provisions for litigation loss, insurance claims and other disputes	$ 63.8	$ 36.9
Clinical Testing
Commitment [Line Items]
Commitment amount	419.3	358.6
Contract Manufacturing
Commitment [Line Items]
Commitment amount	104.8	86.4
Commitments expected to be paid in next year	60.2
Other Purchasing Commitment
Commitment [Line Items]
Commitment amount	130.0	190.1
Commitments expected to be paid in next year	115.9
Investment Commitment
Commitment [Line Items]
Commitment amount	17.9	9.4
Capital Commitment
Commitment [Line Items]
Commitment amount	$ 24.6	$ 25.4