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Financial Instruments (Fair Values Of Financial Instruments Not Approximating Carrying Values In Financial Statements) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Jan. 01, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt and notes payable and current maturities of long-term debt $ 984.1 $ 1,170.8
Carrying Value [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Finance receivables - net 709.0 561.0
Contract receivables - net 214.8 164.9
Long-term debt and notes payable and current maturities of long-term debt 984.1 1,170.8
Fair Value [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Finance receivables - net 815.0 651.3
Contract receivables - net 246.7 179.3
Long-term debt and notes payable and current maturities of long-term debt $ 1,101.5 $ 1,247.7