Equity Compensation Plans (Details) (USD $)
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0 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||
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Oct. 02, 2012
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Dec. 31, 2012
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Dec. 31, 2012
PAA Long-term Incentive Plan Awards
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Dec. 31, 2011
PAA Long-term Incentive Plan Awards
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Dec. 31, 2010
PAA Long-term Incentive Plan Awards
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Dec. 31, 2009
PAA Long-term Incentive Plan Awards
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Dec. 31, 2012
Employees and Directors Long Term Incentive Plan
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Dec. 31, 2012
Non Officer Employee Long Term Incentive Tracking Unit Plan
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Dec. 31, 2012
PNG Long Term Incentive Plan Awards
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Dec. 31, 2012
PNG Long Term Incentive Plan Awards
Range of annualized vesting distribution amount from $1.35 to $1.55
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Dec. 31, 2012
PNG Long Term Incentive Plan Awards
Other ranges of annualized vesting distribution
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Share-based Compensation Arrangement, by Share-based Payment Award | |||||||||||
Unit split conversion ratio | 2 | ||||||||||
Impact to number of unvested LTIP awards due to stock split | doubled | ||||||||||
Impact to number of units available for issuance under PAA LTIP | doubled | ||||||||||
Percentage of reduction in specified distribution level | 50.00% | ||||||||||
Authorized grants (in units) | 10,800,000 | 4,200,000 | 3,000,000 | ||||||||
Units Outstanding (in units) | 6,000,000 | 8,000,000 | 8,800,000 | 7,800,000 | 600,000 | 400,000 | 200,000 | ||||
Estimated unit vesting in 2013 (in units) | 1,900,000 | 100,000 | 100,000 | ||||||||
Estimated unit vesting in 2014 (in units) | 1,700,000 | 300,000 | 100,000 | 200,000 | |||||||
Estimated unit vesting in 2015 (in units) | 2,000,000 | ||||||||||
Estimated unit vesting in 2016 (in units) | 300,000 | 200,000 | 200,000 | ||||||||
Estimated unit vesting thereafter (in units) | 100,000 | ||||||||||
Annualized distribution, low end of range (in dollars per unit) | $ 1.925 | $ 1.35 | |||||||||
Annualized distribution, high end of range (in dollars per unit) | $ 2.40 | $ 1.55 | |||||||||
Units outstanding that include DERs (in units) | 2,900,000 | 500,000 | |||||||||
DERs currently vested (in units) | 2,700,000 | 200,000 |