INVESTMENT IN NUSTAR ENERGY Narrative 2 (Details) (NuStar Energy [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 TexStar Asset Acquisition [Member]	Dec. 31, 2013 San Antonio Refinery Sale [Member]	Dec. 31, 2012 Sale of Asphalt Operations [Member]
Schedule of Equity Method Investments [Line Items]
NuStar Energy's Disposal Date		Jan. 01, 2013	Sep. 28, 2012
NuStar Energy's Proceeds from sale or disposition of assets		$ 117.0
NuStar Energy's Effective date of acquisition	Dec. 13, 2012
NuStar Energy's Percentage acquired	100.00%
NuStar Energy's Purchase price of acquired entity	$ 325.4
NuStar Energy's Acquired pipeline miles	140 miles
NuStar Energy's Acquired storage capacity (in barrels)	600,000
NuStar Energy's Percent Ownership Interest Sold			50.00%