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Other Comprehensive Income (Tables)
12 Months Ended
Dec. 31, 2011
Other Comprehensive Income [Abstract]  
Accumulated other comprehensive income

Accumulated other comprehensive income consisted of the following:

 

                 
As of December 31,   2011     2010  

Foreign currency translation

  $ 399.4     $ 394.8  

Cash flow hedges

    (10.1     (4.0

Unrealized loss on securities

          (0.2

Unrecognized prior service cost and unrecognized loss in actuarial assumptions

    (117.9     (69.6

 

   

 

 

 

Accumulated other comprehensive income

  $ 271.4     $ 321.0