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v2.4.1.9

Debt (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Mar. 31, 2015
Short-term debt: |  |
Other short-term debt | $ 3 us-gaap_OtherLongTermDebtCurrent | $ 3 us-gaap_OtherLongTermDebtCurrent
Total short-term debt | 1,287 us-gaap_DebtCurrent | 553 us-gaap_DebtCurrent
Long-term debt: |  |
Senior notes, net of unamortized discount of $17 and $18, respectively | 8,757 us-gaap_SeniorLongTermNotes | 8,758 us-gaap_SeniorLongTermNotes
Unamortized discount | 18 us-gaap_DebtInstrumentUnamortizedDiscount | 17 us-gaap_DebtInstrumentUnamortizedDiscount
Long-term debt, other | 5 us-gaap_OtherLongTermDebtNoncurrent | 5 us-gaap_OtherLongTermDebtNoncurrent
Total long-term debt | 8,762 us-gaap_LongTermDebtAndCapitalLeaseObligations | 8,763 us-gaap_LongTermDebtAndCapitalLeaseObligations
Total debt | 10,049 us-gaap_DebtAndCapitalLeaseObligations | 9,316 us-gaap_DebtAndCapitalLeaseObligations
Commercial paper program |  |
Short-term debt: |  |
Commercial paper notes, bearing a weighted-average interest rate of 0.46% at December 31, 2014 | 734 us-gaap_CommercialPaper / us-gaap_CreditFacilityAxis = us-gaap_CommercialPaperMember |
Repayment period | 1 year |
Weighted average interest rate, short-term (as a percent) | 0.46%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_CreditFacilityAxis = us-gaap_CommercialPaperMember |
5.25% senior notes due June 2015 |  |
Short-term debt: |  |
Senior Notes, Current | 150 us-gaap_SeniorNotesCurrent / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInJune2015At5.25PercentMember | 150 us-gaap_SeniorNotesCurrent / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInJune2015At5.25PercentMember
Long-term debt: |  |
Debt instrument, interest rate (as a percent) | 5.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInJune2015At5.25PercentMember | 5.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInJune2015At5.25PercentMember
3.95% senior notes due September 2015 |  |
Short-term debt: |  |
Senior Notes, Current | $ 400 us-gaap_SeniorNotesCurrent / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInSeptember2015At3.95PercentMember | $ 400 us-gaap_SeniorNotesCurrent / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInSeptember2015At3.95PercentMember
Long-term debt: |  |
Debt instrument, interest rate (as a percent) | 3.95%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInSeptember2015At3.95PercentMember | 3.95%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = paa_SeniorNotesDueInSeptember2015At3.95PercentMember

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