v2.4.0.6

EMPLOYEE BENEFIT PLANS AND LONG-TERM INCENTIVE PLANS Table 1 (Details) (General partner employees benefit plans)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
The 2000 LTIP [Member] | Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	27,111	21,380	23,233
Vesting	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	208,195	191,430	194,973
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	6,760	3,938	5,076
Vesting	1/3 per year	1/3 per year	1/3 per year
The UIP [Member] | Restricted Units, GP Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	14,005	11,520	10,692
Vesting	1/5 per year	1/5 per year	1/5 per year
The UIP [Member] | Restricted Units Certain International Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	2,880	2,460	2,382
Vesting	1/3
The 2006 LTIP [Member] | Restricted Units, GP Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted units, granted	24,970	21,935	24,290
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	9,987	6,156	8,627
Vesting	1/3 per year	1/3 per year	1/3 per year

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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 Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration