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Debt (Details 2) (USD $)						9 Months Ended		1 Months Ended
	Apr. 23, 2014 Treasury locks entered into in anticipation of issuance of 4.70% senior notes due 2044 PAA	Sep. 30, 2014 Letters of credit	Dec. 31, 2013 Letters of credit	Sep. 30, 2014 PAA commercial paper notes PAA	Oct. 20, 2014 PAA commercial paper notes PAA Subsequent Event	Sep. 30, 2014 Credit agreements and PAA commercial paper program	Sep. 30, 2013 Credit agreements and PAA commercial paper program	Aug. 31, 2014 PAA senior secured hedged inventory facility	Aug. 31, 2014 PAA senior unsecured revolving credit facility	Sep. 30, 2014 AAP term loan	Sep. 30, 2014 AAP senior secured revolving credit facility	Sep. 30, 2014 PAA senior notes	Dec. 31, 2013 PAA senior notes	Sep. 30, 2014 PAA senior notes Level 2	Dec. 31, 2013 PAA senior notes Level 2	Sep. 30, 2014 4.70% senior notes due June 2044	Apr. 23, 2014 4.70% senior notes due June 2044	Sep. 30, 2014 3.60% senior notes due November 2024	Sep. 09, 2014 3.60% senior notes due November 2024 PAA
Debt
Debt instrument face value												$ 8,200,000,000	$ 6,700,000,000				$ 700,000,000		$ 750,000,000
Maximum aggregate borrowing capacity				1,500,000,000	3,000,000,000
Debt instrument fair value														8,800,000,000	7,200,000,000
Extension period								1 year	1 year	1 year	1 year
Total borrowings						55,700,000,000	13,200,000,000
Total repayments						56,300,000,000	13,400,000,000
Outstanding letters of credit		66,000,000	41,000,000
Debt instrument, interest rate (as a percent)																4.70%	4.70%	3.60%	3.60%
Percentage of face value at which senior notes are sold																	99.734%		99.842%
Notional amount of derivatives	$ 250,000,000

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ 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

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- Definition

Represents the number of years by which the maturity date of the debt instrument was extended.

+ References

No definition available.

+ Details

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- Definition

This element represents the percentage of face value of senior notes, at which they are sold.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

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-Paragraph 10

-Subparagraph (a)

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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No definition available.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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No definition available.

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