REVENUES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Product Information [Line Items]
Revenues	$ 19,828,155	$ 19,151,455	$ 20,138,687
Gasoline and Distillates [Member]
Product Information [Line Items]
Revenues	17,050,096	16,973,239	17,878,957
Chemicals [Member]
Product Information [Line Items]
Revenues	739,096	746,396	705,373
Asphalt and blackoils [Member]
Product Information [Line Items]
Revenues	706,494	690,305	642,640
Lubricants [Member]
Product Information [Line Items]
Revenues	410,466	468,315	517,921
Other [Member]
Product Information [Line Items]
Revenues	$ 922,003	$ 273,200	$ 393,796