Quarterly report pursuant to Section 13 or 15(d)

Fair Value Of Financial Instruments (Fair Value Of Assets And Liabilities) (Detail)

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Fair Value Of Financial Instruments (Fair Value Of Assets And Liabilities) (Detail) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Fair Value, Assets And Liabilities Components [Line Items]    
Cash equivalents $ 25.0 $ 351.2
Derivative assets 83.9 157.9
International marketable securities 25.0 27.1
Foreign exchange contracts 10.1 8.0
Total Assets 144.0 544.2
Derivative liabilities 15.8 19.5
Foreign exchange contracts 9.5 3.5
Total Liabilities 25.3 23.0
Derivative asset, fair value 94.0 165.9
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member]
   
Fair Value, Assets And Liabilities Components [Line Items]    
Cash equivalents 25.0 351.2
International marketable securities 25.0 27.1
Total Assets 50.0 378.3
Significant Other Observable Inputs (Level 2) [Member]
   
Fair Value, Assets And Liabilities Components [Line Items]    
Foreign exchange contracts 10.1 8.0
Total Assets 10.1 8.0
Foreign exchange contracts 9.5 3.5
Total Liabilities 9.5 3.5
Significant Unobservable Inputs (Level 3) [Member]
   
Fair Value, Assets And Liabilities Components [Line Items]    
Derivative assets 83.9 [1] 157.9 [1]
Total Assets 83.9 157.9
Derivative liabilities 15.8 19.5
Total Liabilities 15.8 19.5
Accounts Receivable [Member]
   
Fair Value, Assets And Liabilities Components [Line Items]    
Derivative asset, fair value $ 19.2 $ 83.8
[1] Derivative assets includes $19.2 million and $83.8 million, respectively, classified as Accounts receivable in the Statement of Unaudited Condensed Consolidated Financial Position as of June 30, 2012 and December 31, 2011. Refer to NOTE 3 - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES for further information.