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Operating Segments and Geographic Data (Details 2) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues | [1] |  | $ 32,877 |  | $ 64,401
Includes excise, value-added and similar taxes |  |  | 1,771 |  | 3,448
Oil and Gas |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | $ 40,491 | 32,877 | $ 76,459 | 64,401
Oil and Gas | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 47,957 | 38,296 | 90,397 | 75,302
Oil and Gas | All Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 275 | 286 | 505 | 526
Oil and Gas | Total All Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 58 | 48 | 119 | 100
Oil and Gas | United States | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 21,002 | 16,735 | 38,848 | 32,642
Oil and Gas | United States | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (210) | (231) | (376) | (414)
Oil and Gas | United States | All Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 268 | 278 | 495 | 513
Oil and Gas | United States | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (3,836) | (2,432) | (6,762) | (4,859)
Oil and Gas | International | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 26,955 | 21,561 | 51,549 | 42,660
Oil and Gas | International | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (7) | (7) | (10) | (12)
Oil and Gas | International | All Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 7 | 8 | 10 | 13
Oil and Gas | International | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (3,630) | (2,987) | (7,176) | (6,042)
Oil and Gas | Upstream |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 7,318 | 5,081 | 14,579 | 9,941
Oil and Gas | Upstream | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 13,924 | 9,987 | 27,157 | 19,808
Oil and Gas | Upstream | United States | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 5,044 | 3,135 | 9,621 | 6,375
Oil and Gas | Upstream | United States | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (3,185) | (2,198) | (5,942) | (4,439)
Oil and Gas | Upstream | International | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 8,880 | 6,852 | 17,536 | 13,433
Oil and Gas | Upstream | International | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (3,421) | (2,708) | (6,636) | (5,428)
Oil and Gas | Downstream |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 33,115 | 27,748 | 61,761 | 54,360
Oil and Gas | Downstream | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 33,758 | 28,023 | 62,735 | 54,968
Oil and Gas | Downstream | United States | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 15,690 | 13,322 | 28,732 | 25,754
Oil and Gas | Downstream | United States | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | (441) | (3) | (444) | (6)
Oil and Gas | Downstream | International | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | 18,068 | 14,701 | 34,003 | 29,214
Oil and Gas | Downstream | International | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sales and Other Operating Revenues |  | $ (202) | $ (272) | $ (530) | $ (602)
[1] | The three-month and six-month comparative periods ended June 30, 2017, include excise, value-added and similar taxes of $1,771 million and $3,448 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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