Annual report pursuant to Section 13 and 15(d)

OPERATING SEGMENTS (Details)

v3.3.1.900
OPERATING SEGMENTS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information [Line Items]      
Concentrate operations 37.00% 38.00% 38.00%
Finished products operations 63.00% 62.00% 62.00%
Sales Revenue Net Percentage 100.00% 100.00% 100.00%
Sales Revenue, Goods, Net $ 44,294 $ 45,998 $ 46,854
Property, Plant and Equipment, Net 12,571 14,633 14,967
United States      
Segment Reporting Information [Line Items]      
Sales Revenue, Goods, Net 20,360 19,763 19,820
Property, Plant and Equipment, Net 8,266 8,683 8,841
International      
Segment Reporting Information [Line Items]      
Sales Revenue, Goods, Net 23,934 26,235 27,034
Property, Plant and Equipment, Net $ 4,305 $ 5,950 $ 6,126