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Partners' Capital and Distributions (Details 3) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended			6 Months Ended			0 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 PAA	Jun. 30, 2014 PAA PAA Continuous Offering Program	Jun. 30, 2014 SLC Pipeline LLC	Jun. 30, 2014 AAP	Aug. 14, 2014 Second Quarter Distribution PAA Subsequent Event	Jun. 30, 2014 Second Quarter Distribution PAA Subsequent Event	Aug. 14, 2014 Second Quarter Distribution AAP Subsequent Event	Jun. 30, 2014 Second Quarter Distribution AAP Subsequent Event	May 15, 2014 First Quarter Distribution PAA	Jun. 30, 2014 First Quarter Distribution PAA	May 15, 2014 First Quarter Distribution AAP	Jun. 30, 2014 First Quarter Distribution AAP	Feb. 14, 2014 Fourth quarter distribution PAA	Jun. 30, 2014 Fourth quarter distribution PAA	Feb. 14, 2014 Fourth quarter distribution AAP	Jun. 30, 2014 Fourth quarter distribution AAP
Partners Capital and Distribution
Units Issued (in units)				8.1
Proceeds from Sale	$ 444	$ 354		$ 444
Noncontrolling interests, ownership percentage of noncontrolling owners			98.00%		25.00%	78.00%
Date Declared								Jul. 08, 2014				Apr. 07, 2014				Jan. 09, 2014
Distribution Date								Aug. 14, 2014		Aug. 14, 2014		May 15, 2014		May 15, 2014		Feb. 14, 2014		Feb. 14, 2014
Unitholders of record, date								Aug. 01, 2014		Aug. 01, 2014								Jan. 31, 2014
Distributions received by AAP from PAA									122				115				107
Cash Reserves									(3)				(4)				(3)
Distributions paid to limited partners							238		119		229		111		221		104
Distributions to AAP - Incentive							117				110				102
Distributions to AAP - 2%							5				5				5
Total distributions paid during the period							360				344				328
Distribution per limited partner unit (in dollars per unit)							$ 0.6450				$ 0.6300				$ 0.6150
Distributions to noncontrolling interests					1				94				88				87
Distributions to PAGP									$ 25				$ 23				$ 17

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