XML 42 R45.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Derivatives and Risk Management Activities (Details) | Sep. 30, 2014 bbl
--- | ---
Net long position associated with crude oil purchases |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | 248,700
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 7,700,000
Net short time spread position hedging anticipated crude oil lease gathering purchases |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | 19,900
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 11,500,000
Crude oil grade spread positions |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | 15,200
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 6,500,000
Short natural gas position related to anticipated natural gas sales |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 25,100,000
Net short position related to anticipated sales of crude oil, NGL and refined products inventory |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 12,100,000
PLA crude oil net short position |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | 1,400
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 1,100,000
PLA crude oil long call position |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 600,000
Long natural gas position for natural gas purchases |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 33,300,000
Short propane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 5,400,000
Short butane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels, Mcf or megawatt hours) | 1,600,000

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional volume of commodity price risk derivatives per day, expressed in non-monetary units. + References No definition available. + Details
Name: | pagp_NonmonetaryNotionalAmountOfPriceRiskDerivativesAveragePerDay
Namespace Prefix: | pagp_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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