ACQUISITIONS, DISPOSITIONS AND OTHER TRANSACTIONS (Details) (USD $)	3 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended		1 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	May 31, 2013 Brazilian chemical facility	Dec. 31, 2013 Brazilian chemical facility	Oct. 31, 2013 General Partner of Plains All American Pipeline,L.P	Dec. 31, 2013 General Partner of Plains All American Pipeline,L.P	Oct. 31, 2013 Ingleside lb	Dec. 31, 2013 Ingleside	Feb. 28, 2014 Subsequent event Hugoton Field operations MMcfe
Acquisitions, dispositions and other transactions
Pre-tax proceeds from sale of assets									$ 1,400,000,000
Average net production per day									110,000,000
Percentage of oil in average net production									30.00%
Sale of equity investment, net			270,000,000		1,400,000,000
Gain on sale of equity investments		1,175,000,000	131,000,000	131,000,000	1,000,000,000	1,000,000,000
Ethylene production capacity of ethane steam cracking unit, per year (in pounds)							1,200,000,000
Total portion of construction costs								23,000,000
Charge for former employees and consultants	$ 55,000,000