v3.7.0.1

Related-Party Transactions Related-Party Transactions, Summary of Transactions Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Revenue from Related Parties | [1] | $ 202 | $ 168 | [2] | $ 405 | $ 337 | [2]
Related Party Transaction, Expenses from Transactions with Related Party | [3] | 38 | 34 |  | 77 | 69 |
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party |  | $ 18 | $ 16 |  | $ 38 | $ 33 |
Concentration Risk, Percentage |  | 49.00% | 57.00% |  | 49.00% | 57.00% |
Volume Gains (Losses) Value |  | $ 2 | $ 2 |  | $ 5 | $ 3 |
Cost of Reimbursable Expense |  | 3 | 3 |  | 5 | 9 |
Partner to Andeavor [Member] | Omnibus Agreement |  |  |  |  |  |  |
Payment for Administrative Fees |  |  |  |  | 11 |  |
Andeavor to Partner | Secondment and Logistics Services Agreement |  |  |  |  |  |  |
Long-term Purchase Commitment, Amount |  | $ 5 | $ 1 |  | $ 10 | $ 6 |
[1] | Andeavor accounted for 49% of our total revenues for both the three and six months ended June 30, 2017 and 57% for both the three and six months ended June 30, 2016.
[2] | Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.
[3] | Includes imbalance settlement gains of $2 million for both the three months ended June 30, 2017 and 2016, respectively, and $5 million and $3 million for the six months ended June 30, 2017 and 2016, respectively. Also includes reimbursements from Andeavor pursuant to the Amended Omnibus Agreement, the Carson Assets Indemnity Agreement and other affiliate agreements of $3 million for both the three months ended June 30, 2017 and 2016, respectively, and $5 million and $9 million for the six months ended June 30, 2017 and 2016, respectively.

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