Reserves for Discounts and Allowances (Details 1) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of total product revenue reserves included in consolidated balance sheets
Reduction of accounts receivable	$ 46.3	$ 40.6
Component of accrued expenses and other	132.9	115.0
Total reserves	$ 179.2	$ 155.6