Annual report pursuant to Section 13 and 15(d)

Leases (Details)

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Leases (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Leases [Abstract]      
Longest running lease period obligations extends through 2038    
Operating Leases, Rent Expense, Net [Abstract]      
Basic expense $ 31.6 $ 34.7 $ 36.5
Contingent expense 3.3 2.8 2.3
Sublease income (1.5) (1.2) (1.2)
Rent expense, net 33.4 36.3 37.6
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2013 28.6    
2014 21.8    
2015 16.9    
2016 12.6    
2017 9.6    
Thereafter 28.5    
Total (not reduced by minimum sublease income of $1.2) 118.0    
Minimum future sublease income 1.2    
Assets [Abstract]      
Building and improvements 10.3 4.3  
Accumulated depreciation (0.4) 0  
Total assets 9.9 4.3  
Liabilities [Abstract]      
Debt 6.7 2.9  
Total liabilities 6.7 2.9  
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2013 0.8    
2014 0.9    
2015 1.0    
2016 1.0    
2017 1.1    
Thereafter 6.0    
Total $ 10.8