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Tax (Tables)
6 Months Ended
Jun. 30, 2012
Tax [Abstract]  
Difference between the effective tax rate
                                 
    Three Months Ended
June 30,
    Six Months Ended
June 30,
 
    2012     2011     2012     2011  

Federal income tax at U.S. federal statutory rate

  $ 310     $ 247     $ 616     $ 455  

Foreign income tax rate differential

    (57     (41     (80     (65

State income tax, net of federal benefit

    9       5       17       11  

Nondeductible expenses

    10       14       23       24  

Tax benefit of manufacturing deduction

    (9     (6     (18     (12

Foreign dividends, net of foreign tax credits

    14       5       20       10  

Tax impact of foreign exchange

    12       —         (18     —    

Tax rate change on temporary differences

    —         —         —         (13

Other

    (4     2       (6     5  
   

 

 

   

 

 

   

 

 

   

 

 

 

Provision for income taxes

  $ 285     $ 226     $ 554     $ 415