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Debt (Details 2) (Terminated PAA senior unsecured 364-day revolving credit agreement, USD $) In Billions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2011
Terminated PAA senior unsecured 364-day revolving credit agreement |
Debt |
Borrowing capacity | $ 1.2
Period for activation of credit facility (in months) | 6 months
Tenure of credit facility | 364 days

X
- Definition Represents the period for activation of credit facility. + References No definition available. + Details
Name: | paa_LineOfCreditFacilityPeriodForActivationOfFacility
Namespace Prefix: | paa_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the tenure of the line of credit facility. + References No definition available. + Details
Name: | paa_LineOfCreditFacilityTenureOfFacility
Namespace Prefix: | paa_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant