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Operating Segments and Geographic Data (Details 1) - USD ($) $ in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Segment Assets |  |
Segment Assets | $ 257,929 | $ 253,806
Goodwill | 4,518 | 4,531
United States |  |
Segment Assets |  |
Segment Assets | 72,204 | 68,910
International |  |
Segment Assets |  |
Segment Assets | 181,207 | 180,365
Operating Segments |  |
Segment Assets |  |
Segment Assets | 247,096 | 245,549
Operating Segments | Upstream |  |
Segment Assets |  |
Segment Assets | 204,220 | 204,913
Goodwill | 4,518 | 4,531
Operating Segments | Upstream | United States |  |
Segment Assets |  |
Segment Assets | 42,266 | 40,770
Operating Segments | Upstream | International |  |
Segment Assets |  |
Segment Assets | 157,436 | 159,612
Operating Segments | Downstream |  |
Segment Assets |  |
Segment Assets | 42,876 | 40,636
Operating Segments | Downstream | United States |  |
Segment Assets |  |
Segment Assets | 24,659 | 23,202
Operating Segments | Downstream | International |  |
Segment Assets |  |
Segment Assets | 18,217 | 17,434
All Other |  |
Segment Assets |  |
Segment Assets | 10,833 | 8,257
All Other | United States |  |
Segment Assets |  |
Segment Assets | 5,279 | 4,938
All Other | International |  |
Segment Assets |  |
Segment Assets | $ 5,554 | $ 3,319

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