Annual report pursuant to Section 13 and 15(d)

Income Taxes, Tax Credits and Unrecognized Tax Benefits (Details)

v2.4.0.6
Income Taxes, Tax Credits and Unrecognized Tax Benefits (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Tax Credit Carryforward [Line Items]      
Tax credit carryforwards $ 156.2 $ 158.2  
Undistributed earnings of foreign subsidiaries considered indefinitely reinvested 21.5 34.8  
Gross unrecognized tax benefits, including interest 27.8 26.9 36.9
Unrecognized tax benefits that would impact tax provision and effective tax rate 26.8 25.3 35.0
Accrued interest related to unrecognized tax benefits 3.1 2.5 4.9
Accrued penalties 0 0 0
Reconciliation of the total amounts of unrecognized tax benefits [Roll Forward]      
Balance at January 1 24.4 32.0  
Gross increases - tax positions prior periods 3.7 3.9  
Gross decreases - tax positions prior periods (1.4) (6.0)  
Gross increases - current period tax positions 1.5 1.0  
Decreases - settlements with taxing authorities (2.2) (5.0)  
Reductions - lapse of statute of limitations (1.1) (1.5)  
Other - CTA (0.2) 0  
Balance at December 31 24.7 24.4  
Foreign Tax Credit [Member]
      
Tax Credit Carryforward [Line Items]      
Tax credit carryforwards 60.3    
General Business Credits [Member]
      
Tax Credit Carryforward [Line Items]      
Tax credit carryforwards 66.6    
State Tax Credits [Member]
      
Tax Credit Carryforward [Line Items]      
Tax credit carryforwards $ 29.3