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Segment Information - Reconciliation Of Segment Capital Expenditures And Investments To Total Capital Expenditures (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Reconciliation Of Segment Capital Expenditures And Investments To Total Capital Expenditures [Line Items] |  |  |  |
Capital expenditures and investments | [1] | $ 748 | $ 1,325 |
Plus items not allocated to segments: |  |  |  |
Capital expenditures | [2] | 707 | 759 |
MarEn Bakken |  |  |  |
Reconciliation Of Segment Capital Expenditures And Investments To Total Capital Expenditures [Line Items] |  |  |  |
Less: Investments in equity method investees |  |  | 500 |
Operating Segments |  |  |  |
Reconciliation Of Segment Capital Expenditures And Investments To Total Capital Expenditures [Line Items] |  |  |  |
Capital expenditures and investments | [3] | 712 | 1,297 |
Less: Investments in equity method investees |  | 41 | 566 | [4]
Corporate and Other |  |  |  |
Reconciliation Of Segment Capital Expenditures And Investments To Total Capital Expenditures [Line Items] |  |  |  |
Capital expenditures and investments | [5] | 36 | 28 |
Plus items not allocated to segments: |  |  |  |
Corporate |  | 18 | 16 |
Capitalized interest |  | $ 18 | $ 12 |
[1] | Capital expenditures include changes in capital accruals, acquisitions and investments in affiliates.
[2] | Capital expenditures include changes in capital accruals. See Note 18 for a reconciliation of total capital expenditures to additions to property, plant and equipment as reported in the consolidated statements of cash flows.Revenues by product line were as follows: Three Months Ended March 31,(In millions)2018 2017Refined products$16,158 $13,876Merchandise1,130 1,192Crude oil and refinery feedstocks883 687Service, transportation and other523 379Sales and other operating revenues $18,694 $16,134
[3] | Capital expenditures include changes in capital accruals, acquisitions and investments in affiliates.
[4] | The three months ended March 31, 2017 includes an investment of $500 million in MarEn Bakken related to the Bakken Pipeline system.
[5] | Includes capitalized interest of $18 million and $12 million for the three months ended March 31, 2018 and 2017, respectively

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