v2.4.0.6
Fair Values of Derivative Instruments Included on Consolidated Balance Sheet (Detail) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value $ 208.8 $ 225.6
Liability Derivatives Fair Value (10.2) (15.6)
Designated as Hedging Instrument
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 64.6 62.8
Liability Derivatives Fair Value (5.8) (14.6)
Designated as Hedging Instrument | Foreign currency | Prepaid expenses and other current assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 8.6 6.7
Designated as Hedging Instrument | Foreign currency | Miscellaneous other assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 6.0 0.7
Designated as Hedging Instrument | Foreign currency | Accrued payroll and other liabilities
   
Derivatives, Fair Value [Line Items]    
Liability Derivatives Fair Value (0.8) (0.3)
Designated as Hedging Instrument | Foreign currency | Other long- term liabilities
   
Derivatives, Fair Value [Line Items]    
Liability Derivatives Fair Value (5.0) (0.3)
Designated as Hedging Instrument | Interest rate | Prepaid expenses and other current assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 20.0 9.4
Designated as Hedging Instrument | Interest rate | Miscellaneous other assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 26.9 46.0
Designated as Hedging Instrument | Interest rate | Other long- term liabilities
   
Derivatives, Fair Value [Line Items]    
Liability Derivatives Fair Value   (14.0)
Designated as Hedging Instrument | Commodity | Miscellaneous other assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 3.1  
Derivatives Not Designated as Hedging Instruments
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 144.2 162.8
Liability Derivatives Fair Value (4.4) (1.0)
Derivatives Not Designated as Hedging Instruments | Foreign currency | Prepaid expenses and other current assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value 6.9 8.3
Derivatives Not Designated as Hedging Instruments | Foreign currency | Accrued payroll and other liabilities
   
Derivatives, Fair Value [Line Items]    
Liability Derivatives Fair Value (4.4) (1.0)
Derivatives Not Designated as Hedging Instruments | Equity | Miscellaneous other assets
   
Derivatives, Fair Value [Line Items]    
Asset Derivatives Fair Value $ 137.3 $ 154.5