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Organization and Basis of Presentation (Details)	0 Months Ended	12 Months Ended
	Oct. 02, 2012	Dec. 31, 2012 segment owner
Organization and Basis of Presentation
Operating segments number		3
General partner ownership interest (as a percent)		2.00%
Number of principal owners of Plains AAP, L.P., and Plains All American GP LLC		19
Unit split conversion ratio	2
Partner Income Allocation
Ownership interest (as a percent)		1.00%
Maximum
Partner Income Allocation
Ownership interest (as a percent)		35.00%

X

- Definition

The number of principal owners of the reporting entity's general partner.

+ References

No definition available.

+ Details

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- Details

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X

- Definition

The ownership percentage interest held by the principal owners of the LP's general partnership.

+ References

No definition available.

+ Details

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X

- Definition

The smallest reportable ownership percentage interest held by the principal owners of the LP's general partnership.

+ References

No definition available.

+ Details

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X

- Definition

The number of units or percentage investment held by the managing member or general partner of the LLC or LP.

+ References

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

-Publisher AICPA

-Name Practice Bulletin (PB)

-Number 14

-Paragraph 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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X

- Definition

This item represents the conversion ratio used in the calculation of a stock split.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

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