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Equity Compensation Plans (Details 2) (USD $)	1 Months Ended						3 Months Ended	1 Months Ended					3 Months Ended
	Feb. 28, 2013 Special PAA Awards	Feb. 28, 2013 Special PAA Awards PNG	Feb. 28, 2013 Special PAA Awards Awards with a vesting date of August 2018	Feb. 28, 2013 Special PAA Awards Awards with a vesting date of August 2018 PNG	Feb. 28, 2013 Special PAA Awards Awards with a vesting date of August 2019	Feb. 28, 2013 Special PAA Awards Awards with a vesting date of August 2019 PNG	Mar. 31, 2013 PAA Long-term Incentive Plan Awards	Feb. 28, 2013 PAA Long-term Incentive Plan Awards Equity Awards	Feb. 28, 2013 PAA Long-term Incentive Plan Awards Equity Awards Awards with a minimum vesting date of August 2016	Feb. 28, 2013 PAA Long-term Incentive Plan Awards Equity Awards Awards with a minimum vesting date of August 2017	Feb. 28, 2013 PAA Long-term Incentive Plan Awards Equity Awards Awards with a minimum vesting date of August 2018	Feb. 28, 2013 PAA Long-term Incentive Plan Awards Liability Awards	Mar. 31, 2013 PNG LTIP Awards Including Transaction Grants
Share-based Compensation Arrangement, by Share-based Payment Award
Awards that will vest upon satisfaction of performance and/or service conditions (as a percent)			50.00%		50.00%				33.00%	33.00%	33.00%
Annualized distribution threshold for vesting of awards (in dollars per share)				$ 1.48		$ 1.43			$ 2.35	$ 2.50	$ 2.65
Period prior to each vesting date for which the average annualized distribution threshold must be maintained for vesting of awards				12 months		12 months
Annualized distribution threshold for vesting of DERs (in dollars per share)	$ 2.40	$ 1.43
DERs that will vest upon satisfaction of performance and/or service conditions (as a percent)								33.00%
Annualized quarterly distribution, low end of range (in dollars per unit)												$ 2.30
Annualized quarterly distribution, high end of range (in dollars per unit)												$ 2.50
Number of awards granted with associated distribution equivalent rights (in shares)												0
Outstanding (in units)
Outstanding at beginning of period (in units)							6,000,000						900,000
Granted (in units)	143,000						4,100,000	2,700,000				1,200,000	400,000
Cancelled or forfeited (in units)							(100,000)
Outstanding at end of period (in units)							10,000,000						1,300,000
Weighted Average Grant Date Fair Value per unit
Outstanding at beginning of period (in dollars per unit)							$ 25.55						$ 17.49
Granted (in dollars per unit)							$ 47.04						$ 17.42
Cancelled or forfeited (in dollars per unit)							$ 31.47
Outstanding at end of period (in dollars per unit)							$ 34.24						$ 17.47

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- Definition

Represents the annualized distribution required for vesting of distribution equivalent rights associated with awards.

+ References

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Represents the number of awards granted with associated distribution equivalent rights.

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Percentage of awards that will vest upon satisfaction of applicable performance and service conditions.

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Percentage of distribution equivalent rights that will vest upon satisfaction of applicable performance and/or service conditions.

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Represents the annualized distribution threshold that must be met for the vesting of awards.

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Represents the period prior to each vesting date for which the average annualized distribution threshold must be maintained in order for awards to vest.

+ References

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The floor of a customized range of annualized distribution amounts required for vesting.

+ References

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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