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Financial Instruments and Hedging Activities - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Derivative [Line Items]        
Fixed-rate debt converted to floating-rate debt from the use of interest rate exchange agreements $ 2,100,000,000   $ 2,100,000,000  
Notional amount of derivatives used to hedge foreign royalties 305,400,000   305,400,000  
Foreign currency denominated debt designated to hedge investments in certain foreign subsidiaries and affiliates 5,100,000,000   5,100,000,000  
Net increase (decrease) after-tax related to the cash flow hedges component of accumulated OCI in shareholders' equity (500,000) 14,300,000 (4,000,000) 21,800,000
Cumulative deferred hedging gains, after tax, included in accumulated other comprehensive income $ 11,000,000   $ 11,000,000