BUSINESS SEGMENTS (Product Revenue) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Product revenue [Line Items]
Revenues	$ 20,921	[1]	$ 18,010	[1]	$ 20,880	[1]
Treatment and refining charges included in copper concentrates revenues	400		311		362
Refined Copper Products [Member]
Product revenue [Line Items]
Revenues	7,466		9,699		10,297
Copper in concentrates [Member]
Product revenue [Line Items]
Revenues	7,040	[2]	4,589	[2]	5,938	[2]
Gold [Member]
Product revenue [Line Items]
Revenues	1,656		1,741		2,429
Molybdenum [Member]
Product revenue [Line Items]
Revenues	1,110		1,187		1,348
Oil [Member]
Product revenue [Line Items]
Revenues	2,310		0		0
Other [Member]
Product revenue [Line Items]
Revenues	$ 1,339		$ 794		$ 868

[1] Revenues are attributed to countries based on the location of the customer.

[2] Amounts are net of treatment and refining charges totaling $400 million for 2013, $311 million for 2012 and $362 million for 2011.