v3.8.0.1

Debt Total Debt (Details) - USD ($) $ in Millions | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 4,134 |  | $ 4,109
Unamortized issuance costs and premium (a) | [1] | (22) |  | (55)
Current maturities |  | (1) |  | (1)
Debt, Net of Current Maturities and Unamortized Issuance Costs |  | $ 4,111 | [2] | $ 4,053
[1] | Includes premium of $25 million related to the incremental fair value of the WNRL senior notes upon acquisition.
[2] | (a)Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.

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