Commitments and Contingencies (Commitments and Loss Contingency) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013 Settlement costs related to agreement in principle to resolve a civil subpoena	Mar. 31, 2014 Clinical Testing	Dec. 31, 2013 Clinical Testing	Dec. 31, 2014 Contract Manufacturing	Mar. 31, 2014 Contract Manufacturing	Dec. 31, 2013 Contract Manufacturing	Dec. 31, 2014 Other Purchasing Commitment	Mar. 31, 2014 Other Purchasing Commitment	Dec. 31, 2013 Other Purchasing Commitment	Mar. 31, 2014 Investment Commitment	Dec. 31, 2013 Investment Commitment	Mar. 31, 2014 Capital Commitment	Dec. 31, 2013 Capital Commitment
Commitment [Line Items]
Commitment amount				$ 356.0	$ 346.0		$ 636.0	$ 109.0		$ 449.0	$ 128.0	$ 14.0	$ 14.0	$ 5.0	$ 12.0
Commitments expected to be paid in next year						142.0			287.0
Legal Matters [Line Items]
Provisions for litigation loss, insurance claims and other disputes	$ 69.9	$ 72.7	$ 57.5