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Fair Value Measurements (Carrying Amounts And Fair Values Of Financial Instruments) (Details) (USD $)
In Millions, unless otherwise specified
Jun. 29, 2012
Dec. 31, 2011
Assets:    
Available-for-sale securities $ 365.7 $ 287.0
Liabilities:    
Currency swap agreement 41.8 53.9
Carrying Amount
   
Assets:    
Available-for-sale securities 365.7 287.0
Liabilities:    
Short-term borrowings 55.4 98.4
Long-term borrowings 4,847.6 5,206.8
Currency swap agreement 41.8 53.9
Fair Value
   
Assets:    
Available-for-sale securities 365.7 [1] 287.0
Liabilities:    
Short-term borrowings 55.4 [1] 98.4
Long-term borrowings 5,478.5 [1] 5,790.1
Currency swap agreement $ 41.8 [1] $ 53.9
[1] Effective January 1, 2012, the Company is required to disclose, on a prospective basis, the level within the fair value hierarchy at which the fair values of the financial instruments are categorized. As of June 29, 2012, available-for-sale securities and short and long-term borrowings were categorized as level 1, while the currency swap agreement was categorized as level 2.