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Organization and Principles of Consolidation - Additional Information (Details) $ in Billions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2018 state store segment | Apr. 02, 2018 store | Jan. 23, 2018 USD ($) | Jan. 18, 2017 store
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Number of Stores | store | 47 |  |  | 97
Percentage of membership interest acquired | 100.00% |  |  |
Number of operating segments | segment | 2 |  |  |
Sunoco LLC [Member] | Minimum [Member] |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Number of states in which entity operates (more than) | state | 30 |  |  |
Motor Fuels [Member] | Minimum [Member] |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Number of states in which entity operates (more than) | state | 30 |  |  |
Energy Transfer Partners Limited Partnership [Member] |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest | 2.30% |  |  |
ETE [Member] |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest | 26.50% |  |  |
7-Eleven sales [Member] |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Business acquisition, total purchase price | $ |  |  | $ 3.2 |
Subsequent Event [Member] | TEXAS |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |
Number of Stores | store |  | 207 |  |

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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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- Definition 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. + References No definition available. + Details
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