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Comprehensive Income
6 Months Ended
Jun. 30, 2011
Comprehensive Income [Abstract]  
Comprehensive Income
NOTE 7. Comprehensive Income
          The components of comprehensive income (loss) were as follows (in millions):
                                 
    Three Months Ended     Six Months Ended  
    June 30     June 30  
    2011     2010     2011     2010  
Net income
  $ 26.4     $ 21.5     $ 46.3     $ 40.2  
Other comprehensive income, net of taxes:
                               
Foreign currency translation gain (loss)
    19.0       (57.3 )     39.5       (72.5 )
Unrealized (loss) gain on securities
    (0.4 )     0.1       (0.4 )     0.7  
Unrealized (loss) gain on derivative instruments
    (1.0 )     (5.4 )     7.8       (4.5 )
Post retirement benefit plans
    0.8       0.9       1.9       1.8  
 
                       
Comprehensive income (loss)
  $ 44.8     $ (40.2 )   $ 95.1     $ (34.3 )