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Acquisitions - Additional Information (Details) $ in Millions |  |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 03, 2018 USD ($) | Apr. 02, 2018 USD ($) store | Mar. 31, 2018 USD ($) store shares | Mar. 31, 2017 USD ($) | Dec. 31, 2017 shares | Jan. 18, 2017 store | Apr. 01, 2015
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of membership interest acquired |  |  | 100.00% |  |  |  |
Revenues |  |  | $ 3,749 |  |  |  |
Net income (loss) |  |  | $ (315) | $ 1 |  |  |
Number of Stores | store |  |  | 47 |  |  | 97 |
Common Units [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Limited partners' capital account, units issued (in shares) | shares |  |  | 82,492,008 |  | 99,667,999 |  |
Six Point Three Seven Five Percentage Senior Notes Due Two Thousand Twenty Three [Member] | Senior Notes [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Interest rate, stated percentage |  |  |  |  |  |  | 6.375%
Subsequent Event [Member] | TEXAS |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of Stores | store |  | 207 |  |  |  |  |
Subsequent Event [Member] | Superior Plus Corporation [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Combination, Consideration Transferred | $ 40 |  |  |  |  |  |
Number Of Fuel Storage Terminals | 3 |  |  |  |  |  |
Subsequent Event [Member] | 7-Eleven sales [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  | $ 50 |  |  |  |  |
Number of Stores | store |  | 26 |  |  |  |  |

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