v2.4.0.6
Other Assets (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Prepaid Expenses and Other Current Assets    
Inventories $ 35.2 $ 31.3
Prepaid expenses 53.4 55.9
Other non-trade receivables 54.5 45.4
Income tax receivable 68.4 69.8
Other current assets 4.4 5.0
Total $ 215.9 $ 207.4