EMPLOYEE BENEFIT PLANS AND LONG-TERM INCENTIVE PLANS Table 1 (Details) - shares	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
The 2000 LTIP [Member] \| Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	29,633	28,841	38,786
Vesting	Performance awards vest 1/3 per year if certain performance measures are met	Performance awards vest 1/3 per year if certain performance measures are met	Performance awards vest 1/3 per year if certain performance measures are met
The 2000 LTIP [Member] \| Restricted Units, GP Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	250,563	208,714	269,182
Vesting	1/5 per year	1/5 per year	1/5 per year
The 2000 LTIP [Member] \| Restricted Units, Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	7,553	7,009	8,904
Vesting	1/3 per year	1/3 per year	1/3 per year
The 2000 LTIP [Member] \| Restricted Units Certain International Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	2,835	2,844	3,882
Vesting	1/3 per year	1/3 per year	1/3 per year
The 2006 LTIP [Member] \| Restricted Units, GP Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	26,240	16,895	18,620
Vesting	1/5 per year	1/5 per year	1/5 per year
The 2006 LTIP [Member] \| Restricted Units, Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	12,814	8,911	13,183
Vesting	1/3 per year	1/3 per year	1/3 per year

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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