XML 48 R30.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2011
Fair Value Measurements  
Fair Value Of Assets And Liabilities Measured On Recurring Basis
      June 30, 2011     December 31, 2010  
      Fair Value Asset (Liability)     Fair Value Asset (Liability)  

(in millions)

   Level 1      Level 2     Total     Level 1      Level 2     Total  

Derivatives:

              

Assets

   $ —         $ 0.1      $ 0.1      $ —         $ 0.1      $ 0.1   

Liabilities

     —           (29.4     (29.4     —           (34.4     (34.4

Available for sale securities

     19.1         —          19.1        19.1         —          19.1