Reserves for Discounts and Allowances (Details 1) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Summary of total product revenue reserves included in consolidated balance sheets
Total reserves	$ 584.2	$ 483.8
Reduction of accounts receivable
Summary of total product revenue reserves included in consolidated balance sheets
Total reserves	144.9	124.6
Component of accrued expenses and other
Summary of total product revenue reserves included in consolidated balance sheets
Total reserves	$ 439.3	$ 359.2