Accounts Payable and Accrued Expenses (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Accounts Payable and Accrued Liabilities, Current [Line Items]
Trade accounts payable and accrued purchases	$ 232.1	$ 202.6
Accrued rebates - Medicaid	570.9	549.1
Accrued rebates - Managed care	362.2	258.1
Sales return reserve	89.1	98.8
Accrued bonuses	68.3	130.9
Accrued employee compensation and benefits payable	95.2	79.4
R&D accruals	66.3	69.6
Provisions for litigation losses and other claims	65.6	71.7
Other accrued expenses	233.3	228.2
Accounts payable and accrued expenses, total	$ 1,783.0	$ 1,688.4