INDUSTRY SEGMENTS AND GEOGRAPHIC AREAS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended																																													1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2013 segment	Dec. 31, 2012 segment	Dec. 31, 2011 segment	Dec. 31, 2013 Total Foreign	Dec. 31, 2012 Total Foreign	Dec. 31, 2011 Total Foreign	Dec. 31, 2013 Colombia	Dec. 31, 2012 Colombia	Dec. 31, 2011 Colombia	Dec. 31, 2011 Libya	Dec. 31, 2013 Oil and Gas	Dec. 31, 2012 Oil and Gas	Dec. 31, 2013 Oil and Gas Oil	Dec. 31, 2012 Oil and Gas Oil	Dec. 31, 2011 Oil and Gas Oil	Dec. 31, 2013 Chemical Basic Chemicals	Dec. 31, 2012 Chemical Basic Chemicals	Dec. 31, 2011 Chemical Basic Chemicals	Dec. 31, 2013 Chemical Vinyls	Dec. 31, 2012 Chemical Vinyls	Dec. 31, 2011 Chemical Vinyls	Dec. 31, 2013 Chemical Other Chemicals	Dec. 31, 2012 Chemical Other Chemicals	Dec. 31, 2011 Chemical Other Chemicals	Dec. 31, 2013 Midstream and Marketing Gas Processing	Dec. 31, 2012 Midstream and Marketing Gas Processing	Dec. 31, 2011 Midstream and Marketing Gas Processing	Dec. 31, 2013 Midstream and Marketing Power	Dec. 31, 2012 Midstream and Marketing Power	Dec. 31, 2011 Midstream and Marketing Power	Dec. 31, 2013 Midstream and Marketing Marketing, Trading, Transportation and other	Dec. 31, 2012 Midstream and Marketing Marketing, Trading, Transportation and other	Dec. 31, 2011 Midstream and Marketing Marketing, Trading, Transportation and other	Dec. 31, 2013 Operating segments Oil and Gas	Dec. 31, 2012 Operating segments Oil and Gas	Dec. 31, 2011 Operating segments Oil and Gas	Dec. 31, 2013 Operating segments Chemical	Dec. 31, 2012 Operating segments Chemical	Dec. 31, 2011 Operating segments Chemical	Dec. 31, 2013 Operating segments Midstream and Marketing	Dec. 31, 2012 Operating segments Midstream and Marketing	Dec. 31, 2011 Operating segments Midstream and Marketing	Dec. 31, 2013 Corporate and Eliminations	Dec. 31, 2012 Corporate and Eliminations	Dec. 31, 2011 Corporate and Eliminations	May 31, 2013 Brazilian chemical facility	Dec. 31, 2013 Brazilian chemical facility	Oct. 31, 2013 Plains Pipeline and other items	Dec. 31, 2013 Plains Pipeline and other items
INDUSTRY SEGMENTS AND GEOGRAPHIC AREAS
Number of operating segments	3	3	3
Segment Information
Net sales	$ 24,455	$ 24,172	$ 23,939	$ 8,446	$ 8,813	$ 8,899	$ 1,022	$ 1,027	$ 1,054																									$ 19,132	$ 18,906	$ 18,419	$ 4,673	$ 4,580	$ 4,815	$ 1,538	$ 1,399	$ 1,447	$ (888)	$ (713)	$ (742)
Pretax operating profit (loss)	9,677	7,753	10,841																															7,894	7,095	10,241	743	720	861	1,573	439	448	(533)	(501)	(709)
Income taxes	(3,755)	(3,118)	(4,201)																																								(3,755)	(3,118)	(4,201)
Discontinued operations, net	(19)	(37)	131																																								(19)	(37)	131
Net income (loss)	5,903	4,598	6,771																															7,894	7,095	10,241	743	720	861	1,573	439	448	(4,307)	(3,656)	(4,779)
Investments in unconsolidated entities	1,459	1,894	2,072																															108	113	128	34	108	121	1,307	1,662	1,812	10	11	11
Property, plant and equipment additions, net	9,188	10,350	7,604																															7,106	8,282	6,192	435	365	241	1,482	1,612	1,120	165	91	51
Depreciation, depletion and amortization	5,347	4,511	3,591																															4,753	3,933	3,064	346	345	330	212	206	173	36	27	24
Total assets	69,443	64,210	60,044																															46,213	44,004	38,967	3,947	3,854	3,754	14,374	12,762	11,962	4,909	3,590	5,361
Product revenue to net sales (as a percent)													89.00%	90.00%	87.00%	55.00%	57.00%	58.00%	42.00%	40.00%	39.00%	3.00%	3.00%	3.00%
Sales revenues for businesses as a percentage of total sales revenues																									51.00%	59.00%	64.00%	36.00%	27.00%	35.00%	13.00%	14.00%	1.00%
Asset impairments and related items	621.0	1,751.0									607.0	1,700.0
Capitalized and suspended exploration costs written off										35
Colombian net worth tax									29
Pre-tax gain for sale of interest in Colombian pipeline									22
Pre-tax gain on sale of investment	$ 1,175																																													$ 131	$ 131	$ 1,000	$ 1,000