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Income Taxes (Unaudited) (Tables)
3 Months Ended
Mar. 31, 2012
Income Tax Disclosure [Abstract]  
Geographic Sources of Provision for Income Taxes
Geographic sources of FCX's provision for income taxes follow (in millions):
 
Three Months Ended
 
March 31,
 
2012
 
2011
United States operations
$
83

 
$
138

International operations
408

 
846

Total
$
491

 
$
984