Amount of debt assumed.

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Percentage of economic interest held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP), converted into a non-economic interest.

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The number of limited partner units that will be issued pursuant to an agreement.

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Limited Partners' Capital Account, Units Issuable

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The number of units of the subsidiary owned by the limited partnership representing limited partner interests.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611443-123010

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Organization and Basis of Consolidaton and Presentation (Details) shares in Millions, $ in Millions		12 Months Ended
	Nov. 15, 2016 USD ($) shares	Dec. 31, 2016 segment shares
Organization and basis of presentation
Operating segments number \| segment		3
GP LLC
Organization and basis of presentation
Consolidated subsidiary, ownership interest (as a percent)		100.00%
AAP
Organization and basis of presentation
Consolidated subsidiary, ownership interest (as a percent)		42.00%
Consolidated subsidiary, ownership interest (in units)		100.2
GP LLC \| AAP
Organization and basis of presentation
Consolidated subsidiary, ownership interest (in units)		1.0
AAP \| PAA
Organization and basis of presentation
Consolidated subsidiary, ownership interest (as a percent)		33.00%
Consolidated subsidiary, ownership interest (in units)		241.7
PAA GP \| Simplification Agreement \| PAA
Organization and basis of presentation
General Partner Economic Ownership Interest Converted Into Non-economic Interest	2.00%
AAP \| Simplification Agreement \| PAA
Organization and basis of presentation
Units agreed to be issued in connection with the Simplification Transactions	245.5
Units to be issued in the future (in units)	0.8
AAP senior secured credit agreement \| AAP \| Simplification Agreement \| PAA
Organization and basis of presentation
Debt assumed \| $	$ 642
Class A Shares
Organization and basis of presentation
Stock split, conversion ratio	0.3755