Accounts Payable and Accrued Expenses (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accounts Payable and Accrued Liabilities, Current [Line Items]
Trade accounts payable and accrued purchases	$ 208.1	$ 259.6
Accrued rebate - Medicaid	455.6	409.8
Accrued rebate - Managed care	184.9	202.8
Sales return reserve	90.5	88.8
Accrued bonuses	109.0	103.0
Accrued employee compensation and benefits payable	64.5	59.3
R&D accruals	73.5	52.7
Provisions for litigation losses and other claims	118.2	22.4
Other accrued expenses	197.2	172.1
Accounts payable and accrued expenses, total	$ 1,501.5	$ 1,370.5