Commitments and Contingencies (Commitments and Loss Contingency) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Legal and other proceedings
Provisions for litigation loss, insurance claims and other disputes	$ 36.9	$ 33.8
Clinical Testing
Commitment [Line Items]
Commitment amount	358.6	156.2
Contract Manufacturing
Commitment [Line Items]
Commitment amount	86.4	108.6
Other Purchasing Commitment
Commitment [Line Items]
Commitment amount	190.1	104.1
Commitments expected to be paid in next year	184.8
Investment Commitment
Commitment [Line Items]
Commitment amount	9.4	5.7
Capital Commitment
Commitment [Line Items]
Commitment amount	$ 25.4	$ 76.0