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Tax (Tables)
3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Difference Between Effective Tax Rate

The difference between the effective tax rate reflected in the provision for income taxes and the U.S. federal statutory rate of 35% was as follows (in millions):

 

     Three Months Ended
March 31,
 
     2015      2014  

Federal income tax at U.S. federal statutory rate

   $ 176       $ 276   

Foreign income tax rate differential

     (46      (47

State income tax, net of federal benefit

     4         6   

Nondeductible expenses

     5         11   

Tax benefit of manufacturing deduction

     (10      (7

Foreign dividends, net of foreign tax credits

     7         9   

Tax impact of foreign exchange

     1         (8

Tax rate change on temporary differences

     (4      —     

Change in tax reserves

     69         —     

Other

     (13      (1
  

 

 

    

 

 

 

Provision for income taxes

$ 189    $ 239