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Equity-Indexed Compensation Plans (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
PAA Long-term Incentive Plan Awards |  |  |
Outstanding (in units) |  |  |
Outstanding at beginning of period (in units) | 6.0 | 8.0 | 8.8
Granted (in units) | 4.1 | 1.5 | 1.0
Vested (in units) | (1.8) | (3.2) | (1.4)
Cancelled or forfeited (in units) | (0.3) | (0.3) | (0.4)
Conversion of PNG unit-denominated awards into PAA unit-denominated awards (in units) | 0.4 |  |
Outstanding at end of period (in units) | 8.4 | 6.0 | 8.0
Weighted Average Grant Date Fair Value per unit |  |  |
Outstanding at beginning of period (in dollars per unit) | $ 25.55 | $ 21.77 | $ 20.85
Granted (in dollars per unit) | $ 47.60 | $ 33.90 | $ 27.53
Vested (in dollars per unit) | $ 24.79 | $ 19.82 | $ 20.34
Cancelled or forfeited (in dollars per unit) | $ 36.70 | $ 29.36 | $ 20.99
Conversion of PNG unit-denominated awards into PAA unit-denominated awards (in dollars per unit) | $ 40.54 |  |
Outstanding at end of period (in dollars per unit) | $ 36.97 | $ 25.55 | $ 21.77
Units issued in connection with the settlement of vested awards, net of tax withholding (in units) | 0.5 | 1.0 | 0.5
Units withheld for taxes (in units) | 0.3 | 0.5 | 0.2
Vested awards settled in cash (in units) | 1.0 | 1.7 | 0.8
PAA Long-term Incentive Plan Awards | Liability Awards |  |  |
Equity-Indexed Compensation Plans |  |  |
Accrued liability related to all outstanding LTIP awards and DERs | $ 98 | $ 90 |
Short-term accrued liability related to all outstanding LTIP awards and DERs | 43 |  |
Long-term accrued liability related to all outstanding LTIP awards and DERs | $ 55 |  |
Annualized distribution probable of occurring (in dollars per share) | $ 2.75 |  |
PNG LTIP Awards |  |  |
Outstanding (in units) |  |  |
Outstanding at beginning of period (in units) | 0.9 | 0.8 | 1.0
Granted (in units) | 0.4 | 0.1 |
Vested (in units) |  |  | (0.1)
Cancelled or forfeited (in units) | (0.3) |  | (0.1)
Conversion of PNG unit-denominated awards into PAA unit-denominated awards (in units) | (1.0) |  |
Outstanding at end of period (in units) |  | 0.9 | 0.8
Weighted Average Grant Date Fair Value per unit |  |  |
Outstanding at beginning of period (in dollars per unit) | $ 17.49 | $ 20.55 | $ 20.55
Granted (in dollars per unit) | $ 17.51 | $ 15.33 |
Vested (in dollars per unit) | $ 18.88 | $ 23.64 | $ 23.62
Cancelled or forfeited (in dollars per unit) | $ 21.62 |  | $ 19.20
Conversion of PNG unit-denominated awards into PAA unit-denominated awards (in dollars per unit) | $ 16.41 |  |
Outstanding at end of period (in dollars per unit) |  | $ 17.49 | $ 20.55
PNG LTIP Awards | Maximum |  |  |
Outstanding (in units) |  |  |
Vested (in units) | (0.1) | (0.1) |
PNG Transaction Grants |  |  |
Outstanding (in units) |  |  |
Cancelled or forfeited (in units) | (0.3) |  |

X
- Definition Annualized distribution probable of occurring for which a portion of the liability for awards based on performance levels is accrued. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were converted during the reporting period to awards denominated in another type of units. + References No definition available. + Details
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- Definition Represents the weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were converted during the reporting period to awards denominated in another type of units. + References No definition available. + Details
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- Definition Represents the vested units which were settled in cash during the reporting period as a result of any share-based compensation plan other than an employee stock ownership plan. + References No definition available. + Details
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable after one year (or the operating cycle, if longer). + References No definition available. + Details
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- Definition 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 -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
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- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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