Exhibit 12

 

Ratio of Earnings to Fixed Charges

 

(in millions)


   Twelve Months Ended
December 31,


     2002

   2003

   2004

Earnings:

                    

Earnings before income taxes and accounting changes

   $ 5,009    $ 4,370    $ 4,922

Add: Interest expense

     173      121      149

Add: One-third of rental expense (a)

     228      226      231
    

  

  

Total earnings

   $ 5,410    $ 4,717    $ 5,302
    

  

  

Fixed Charges:

                    

Interest expense

   $ 173    $ 121    $ 149

Interest capitalized

     25      25      25

One-third of rental expense (a)

     228      226      231
    

  

  

Total fixed charges

   $ 426    $ 372    $ 405
    

  

  

Ratio of Earnings to Fixed Charges

     12.7      12.7      13.1
    

  

  

 

(a) Considered to be representative of interest factor in rental expense.