v3.5.0.2

Related-Party Transactions (Tables) | 6 Months Ended
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Jun. 30, 2016
Related Party Transactions [Abstract] |
Schedule of related party transactions | SUMMARY OF REVENUE AND EXPENSE TRANSACTIONS WITH TESORO (in millions)
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Revenues (a) | $ | 168 |  |  | $ | 154 |  |  | $ | 337 |  |  | $ | 302 |
Operating and maintenance expenses | 35 |  |  | 30 |  |  | 73 |  |  | 60 |
Imbalance settlement gains and reimbursements from Tesoro (b) | 5 |  |  | 11 |  |  | 12 |  |  | 19 |
General and administrative expenses | 16 |  |  | 18 |  |  | 33 |  |  | 35 |
(a) | Tesoro accounted for 57% of our total revenues for both the three and six months ended June 30, 2016 and 56% of our total revenues for both the three and six months ended June 30, 2015.
(b) | Includes imbalance settlement gains of $2 million for both the three months ended June 30, 2016 and 2015, and $3 million and $4 million for the six months ended June 30, 2016 and 2015, respectively. Also includes reimbursements from Tesoro pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement of $3 million and $9 million for the three months ended June 30, 2016 and 2015, respectively, and $9 million and $15 million for the six months ended June 30, 2016 and 2015, respectively.

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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