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Supplemental cash flow information (Tables)
 9 Months Ended
Sep. 30, 2014
Schedule of supplemental cash flow information

A summary of supplemental cash flow information for the first nine months of 2014 and 2013 is presented in the following table (in millions).

 

     First Nine Months  
     2014      2013  

Cash paid during the period for:

      

Income taxes

    $ 3,201        $ 4,028    

Interest:

      

Insurance and other businesses

      321          321    

Railroad, utilities and energy businesses

      1,864          1,507    

Finance and financial products businesses

      332          401    

Investments in equity securities exchanged in connection with business acquisitions

      2,478          —      

Liabilities assumed in connection with business acquisitions

      1,459          275    

Treasury stock acquired in connection with business acquisition

      400          —