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v2.3.0.11

Inventory, Linefill, Base Gas and Long-term Inventory (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2011 | Dec. 31, 2010
Inventory-related disclosures |  |
Ratio for conversion of natural gas volumes to barrels | 6:1 | 6:1
Inventory by category |  |
Inventory | $ 1,452 | $ 1,491
Linefill and base gas | 549 | 519
Long-term inventory | 136 | 154
Total | 2,137 | 2,164
Crude oil |  |
Inventory by category |  |
Inventory | 1,108 | 1,100
Linefill and base gas | 504 | 478
Long-term inventory | 128 | 128
Inventory, Volumes (in barrels or cubic feet) | 11,581,000 | 14,132,000
Linefill and base gas, Volumes (in barrels or cubic feet) | 9,227,000 | 9,159,000
Long-term inventory, Volumes (in barrels or cubic feet) | 1,727,000 | 1,761,000
Inventory, Price/Unit of measure (in dollars per unit) | 95.67 | 77.84
Linefill and base gas, Price/Unit of measure (in dollars per unit) | 54.62 | 52.19
Long-term inventory, Price/Unit of measure (in dollars per unit) | 74.12 | 72.69
LPG |  |
Inventory by category |  |
Inventory | 326 | 366
Linefill and base gas | 3 | 4
Long-term inventory | 8 | 26
Inventory, Volumes (in barrels or cubic feet) | 5,077,000 | 7,395,000
Linefill and base gas, Volumes (in barrels or cubic feet) | 56,000 | 77,000
Long-term inventory, Volumes (in barrels or cubic feet) | 150,000 | 505,000
Inventory, Price/Unit of measure (in dollars per unit) | 64.21 | 49.49
Linefill and base gas, Price/Unit of measure (in dollars per unit) | 53.57 | 51.95
Long-term inventory, Price/Unit of measure (in dollars per unit) | 53.33 | 51.49
Natural gas |  |
Inventory-related disclosures |  |
Number used to divide into natural gas volumes to convert to barrels | 6 | 6
Inventory by category |  |
Inventory | 13 |
Linefill and base gas | 42 | 37
Inventory, Volumes (in barrels or cubic feet) | 3,006,000 | 13,000
Linefill and base gas, Volumes (in barrels or cubic feet) | 12,425,000 | 11,194,000
Inventory, Price/Unit of measure (in dollars per unit) | 4.32 | 3.87
Linefill and base gas, Price/Unit of measure (in dollars per unit) | 3.38 | 3.31
Other |  |
Inventory by category |  |
Inventory | $ 5 | $ 25

X
- Definition Represents the number to be divided into the amount in cubic feet of natural gas volumes in order to convert the volumes to barrels. + Details
Name: | paa_ConversionNaturalGasToCrudeBarrelsDivisor
Namespace Prefix: | paa
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | paa_InventoryByCategoryAbstract
Namespace Prefix: | paa
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the aggregate of current and non-current inventory. + Details
Name: | paa_InventoryCurrentAndNoncurrent
Namespace Prefix: | paa
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | paa_InventoryRelatedDisclosuresAbstract
Namespace Prefix: | paa
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The volume of current inventory as of the balance sheet date. + Details
Name: | paa_InventoryVolumesCurrent
Namespace Prefix: | paa
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The volume of linefill and base gas inventory as of the balance sheet date. + Details
Name: | paa_InventoryVolumesLinefillAndBaseGas
Namespace Prefix: | paa
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The volume of noncurrent inventory as of the balance sheet date. + Details
Name: | paa_InventoryVolumesNoncurrent
Namespace Prefix: | paa
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price per unit of current inventory. + Details
Name: | paa_InventoryWeightedAveragePricePerUnitCurrent
Namespace Prefix: | paa
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price per unit of linefill and base gas inventory. + Details
Name: | paa_InventoryWeightedAveragePricePerUnitLinefillAndBaseGas
Namespace Prefix: | paa
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price per unit of noncurrent inventory. + Details
Name: | paa_InventoryWeightedAveragePricePerUnitNoncurrent
Namespace Prefix: | paa
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Crude oil, refined products, and LPG linefill and base gas in pipelines and natural gas storage facilities that are owned by the entity. The linefill and base gas are intended for long-term use. + Details
Name: | paa_LinefillAndBaseGas
Namespace Prefix: | paa
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the volumetric ratio of mcf of natural gas to crude Btu equivalent. + Details
Name: | paa_RatioForConversionOfNaturalGasVolumeToBarrels
Namespace Prefix: | paa
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). + Details
Name: | us-gaap_InventoryNet
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 3 -Section A -Paragraph 4, 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph d -Article 5 + Details
Name: | us-gaap_InventoryNoncurrent
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant