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Revenue - Summary of Disaggregate Revenue by Destinations (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | $ 1,496 | $ 2,132 | $ 3,379 | $ 4,072
Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 442 | 850 | 1,133 | 1,657
Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 611 | 663 | 1,286 | 1,244
Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 476 | 671 | 1,033 | 1,274
Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (33) | (52) | (73) | (103)
Continental [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 13 | 14 | 30 | 30
Continental [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 11 | 17 | 24 | 33
Continental [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 9 | 21 | 19 | 40
Continental [Member] | Intersubsegment Eliminations [Member] | Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (33) | (52) | (73) | (103)
Continental [Member] | North America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 417 | 870 | 1,080 | 1,740
Continental [Member] | North America [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 183 | 461 | 544 | 921
Continental [Member] | North America [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 181 | 282 | 406 | 551
Continental [Member] | North America [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 53 | 127 | 130 | 268
Continental [Member] | International [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 1,079 | 1,262 | 2,299 | 2,332
Continental [Member] | International [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 246 | 375 | 559 | 706
Continental [Member] | International [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 419 | 364 | 856 | 660
Continental [Member] | International [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 414 | 523 | 884 | 966
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 13 | 14 | 30 | 30
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 11 | 17 | 24 | 33
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 9 | 21 | 19 | 40
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (33) | (52) | (73) | (103)
Land and Offshore [Member] | Land Destination [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 754 | 1,306 | 1,850 | 2,591
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 296 | 679 | 825 | 1,344
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 345 | 456 | 761 | 861
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 113 | 171 | 264 | 386
Land and Offshore [Member] | Offshore Destination [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 742 | 826 | 1,529 | 1,481
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 133 | 157 | 278 | 283
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 255 | 190 | 501 | 350
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | $ 354 | $ 479 | $ 750 | $ 848

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