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Segment Information - Schedule of Segment Reporting Information, by Segment (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | $ 32,815 | $ 30,440 | $ 27,810
Income Before Taxes |  | 2,624 | (1,183) | (1,905)
Assets |  | 70,507 | 71,987 | 77,956
Depreciation and Amortization | [1] | 3,556 | 3,837 | 4,094
Capital Expenditures |  | 2,160 | 2,107 | 2,055
Pretax operating income |  | 4,187 | 3,921 | 3,273
Interest expense |  | 575 | 566 | 570
Charges & credits |  | 141 | 3,764 | 3,820
Reservoir Characterization |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 6,526 |  |
Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 9,250 |  |
Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 12,394 |  |
Cameron |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 5,167 |  |
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 32,815 | 30,440 | 27,810
Interest income |  | 8 | 21 | 26
Interest expense |  | 38 | 53 | 53
Operating Segments | Reservoir Characterization |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 6,526 | 6,795 | 6,660
Income Before Taxes |  | 1,392 | 1,244 | 1,244
Assets |  | 4,477 | 4,892 | 6,890
Depreciation and Amortization |  | 673 | 989 | 1,156
Capital Expenditures |  | 302 | 305 | 532
Operating Segments | Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 9,250 | 8,392 | 8,561
Income Before Taxes |  | 1,239 | 1,151 | 994
Assets |  | 5,843 | 5,513 | 6,803
Depreciation and Amortization |  | 597 | 697 | 881
Capital Expenditures |  | 718 | 629 | 425
Operating Segments | Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 12,394 | 10,630 | 8,792
Income Before Taxes |  | 1,052 | 936 | 512
Assets |  | 12,625 | 12,450 | 10,497
Depreciation and Amortization |  | 1,417 | 1,240 | 1,231
Capital Expenditures |  | 886 | 889 | 655
Operating Segments | Cameron |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 5,167 | 5,205 | 4,211
Income Before Taxes |  | 608 | 733 | 653
Assets |  | 3,967 | 3,978 | 4,246
Depreciation and Amortization |  | 241 | 260 | 208
Capital Expenditures |  | 146 | 150 | 176
Eliminations & other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | (522) | (582) | (414)
Income Before Taxes |  | (104) | (143) | (130)
Assets |  | 1,460 | 1,665 | 1,528
Depreciation and Amortization |  | 189 | 213 | 234
Capital Expenditures |  | 108 | 134 | 267
Goodwill and intangible assets |  | 33,658 | 34,472 | 34,845
Cash and short term investments |  | 2,777 | 5,089 |
Cash, short term investments and fixed income investments |  |  |  | 9,495
All other assets |  | 5,700 | 3,928 | 3,652
Corporate & other | [2] | (937) | (934) | (925)
Interest income | [3] | 52 | 107 | 84
Interest expense | [4] | (537) | (513) | (517)
Charges & credits | [5] | (141) | (3,764) | (3,820)
Eliminations & other | Corporate and Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and Amortization | [2] | $ 439 | $ 438 | $ 384
[1] | Includes depreciation of property, plant and equipment and amortization of intangible assets, multiclient seismic data costs and SPM investments.
[2] | Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets (including intangible asset amortization expense resulting from the 2016 acquisition of Cameron), certain centrally managed initiatives and other nonoperating items.
[3] | Interest income excludes amounts which are included in the segments’ income (2018: $8 million; 2017: $21 million; 2016: $26 million).
[4] | Interest expense excludes amounts which are included in the segments’ income (2018: $38 million; 2017: $53 million; 2016: $53 million).
[5] | See Note 3 – Charges and Credits.

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