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Tax (Tables)
3 Months Ended
Mar. 31, 2014
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,
 
     2014     2013  

Federal income tax at U.S. federal statutory rate

   $ 297      $ 253   

Foreign income tax rate differential

     (47     (57

State income tax, net of federal benefit

     6        8   

Nondeductible expenses

     11        8   

Tax benefit of manufacturing deduction

     (8     (8

Foreign dividends, net of foreign tax credits

     9        4   

Tax impact of foreign exchange

     (8     18   

Other

     —          (2
  

 

 

   

 

 

 

Provision for income taxes

   $ 260      $ 224