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Financial Instruments (Details Textuals) (USD $)
3 Months Ended9 Months Ended
Sep. 30, 2011
Plaintiff
Derivative
LegalMatter
Defendant
Jun. 30, 2011
Derivative
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Dec. 31, 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Accounts receivable$ 8,136,000,000 $ 8,136,000,000$ 7,344,000,000  
Financial Instruments (Textuals) [Abstract]      
Pretax net unrealized loss on derivatives maturing within next 12 months estimated to be reclassified from AOCI to sales  50,000,000   
Weighted-average lives of asset-backed securities5 years or less 5 years or less   
Cash and cash equivalents14,253,000,000 14,253,000,00010,900,000,0009,874,000,0009,311,000,000
Cash equivalents13,300,000,000 13,300,000,000   
Fair value of loans payable and long-term debt, including current portion19,700,000,000 19,700,000,00018,700,000,000  
Carrying value of Loans payable and long-term debt, including current portion18,100,000,000 18,100,000,00017,900,000,000  
Available-for-sale debt securities included in Short-term investments1,300,000,000 1,300,000,000   
Period of debt securities maturitywithin 5 years within 5 years   
Percentage of accounts receivable in Greece, Italy, Spain and Portugal that represent hospital and public sector receivables75.00% 75.00%   
Percentage of noncurrent accounts receivables in Greece, Italy, Spain and Portugal90.00% 90.00%   
Cash collateral received from counterparties378,000,000 378,000,000157,000,000  
Number of interest rate swap contracts terminated119    
Cash received on termination of cash flow hedges113,000,000175,000,000288,000,000   
Accrued interest received on termination of interest rate swap7,000,00036,000,000    
Accounts receivable outstanding for more than one year370,000,000 370,000,000   
Basis adjustments on debt for discontinued interest rate swaps106,000,000139,000,000106,000,000   
Total accounts receivable in Greece, Italy, Spain and Portugal1,600,000,000 1,600,000,000   
Greek hospital and public sector receivables [Member]
      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Accounts receivable$ 100,000,000 $ 100,000,000