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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Abstract]  
Accumulated Other Comprehensive Income (Loss)
09.
Accumulated Other Comprehensive Income
 
The components of Accumulated other comprehensive income, net of tax, were as follows:
 
December 31  2011   2010   2009  
Foreign currency translation $ 54.3  $ 96.6  $ 111.0  
Unrealized gain on investments  8.2   8.0   6.6  
Defined benefit pension plans (Note 8)  (26.5)  (19.1)  (13.2)
Retiree health care plan (Note 8)  (0.7)  1.5   2.5  
Accumulated other comprehensive income $ 35.3  $ 87.0  $ 106.9