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INDUSTRY SEGMENTS AND GEOGRAPHIC AREAS - CORPORATE and GEOGRAPHIC AREAS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Information |  |  |
Net sales | $ 10,090 | $ 12,480 | $ 19,312
Property, plant and equipment, net | 32,337 | 31,639 | 39,730
Corporate significant items affecting earnings/Pre-tax operating profit (loss) |  |  |
Pre-tax operating profit (loss) | (1,664) | (9,476) | 1,555
Income taxes | 662 | 1,330 | (1,685)
United States |  |  |
Segment Information |  |  |
Net sales | 6,290 | 7,479 | 11,943
Property, plant and equipment, net | 24,004 | 23,265 | 26,673
Total Foreign |  |  |
Segment Information |  |  |
Net sales | 3,800 | 5,001 | 7,369
Property, plant and equipment, net | 8,333 | 8,374 | 13,057
Oman |  |  |
Segment Information |  |  |
Net sales | 1,101 | 1,631 | 2,524
Property, plant and equipment, net | 1,858 | 1,292 | 2,876
Qatar |  |  |
Segment Information |  |  |
Net sales | 1,206 | 1,449 | 2,803
Property, plant and equipment, net | 1,299 | 1,354 | 2,605
Colombia |  |  |
Segment Information |  |  |
Net sales | 463 | 570 | 938
Property, plant and equipment, net | 741 | 821 | 1,396
United Arab Emirates |  |  |
Segment Information |  |  |
Net sales | 664 | 477 |
Property, plant and equipment, net | 4,373 | 4,484 | 4,312
Other Foreign |  |  |
Segment Information |  |  |
Net sales | 366 | 874 | 1,104
Property, plant and equipment, net | 62 | 423 | 1,868
Corporate |  |  |
Corporate significant items affecting earnings/Pre-tax operating profit (loss) |  |  |
Income taxes | 424 | 1,903 | 927
Corporate | Pre-tax operating profit (loss) |  |  |
Corporate significant items affecting earnings/Pre-tax operating profit (loss) |  |  |
Asset sale losses |  | (8) |
Impairments of assets | (619) | (235) | (1,358)
Severance, spin-off and other |  | (118) | (61)
Pre-tax operating profit (loss) | $ (619) | $ (361) | $ (1,419)

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