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Revenue - Summary of Disaggregate Revenue by Destinations (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | $ 2,126 | $ 2,154 | $ 6,198 | $ 6,055
Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 793 | 847 | 2,450 | 2,351
Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 728 | 735 | 1,972 | 2,143
Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 649 | 637 | 1,923 | 1,771
Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (44) | (65) | (147) | (210)
Continental [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 16 | 16 | 46 | 48
Continental [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 13 | 20 | 46 | 62
Continental [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 15 | 29 | 55 | 100
Continental [Member] | Intersubsegment Eliminations [Member] | Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (44) | (65) | (147) | (210)
Continental [Member] | North America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 830 | 1,001 | 2,570 | 2,777
Continental [Member] | North America [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 422 | 469 | 1,343 | 1,333
Continental [Member] | North America [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 295 | 343 | 846 | 977
Continental [Member] | North America [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 113 | 189 | 381 | 467
Continental [Member] | International [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 1,296 | 1,153 | 3,628 | 3,278
Continental [Member] | International [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 355 | 362 | 1,061 | 970
Continental [Member] | International [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 420 | 372 | 1,080 | 1,104
Continental [Member] | International [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 521 | 419 | 1,487 | 1,204
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 16 | 16 | 46 | 48
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 13 | 20 | 46 | 62
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 15 | 29 | 55 | 100
Land and Offshore [Member] | Intersubsegment Eliminations [Member] | Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (44) | (65) | (147) | (210)
Land and Offshore [Member] | Land Destination [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 1,246 | 1,434 | 3,837 | 4,012
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 616 | 707 | 1,960 | 1,950
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 479 | 521 | 1,340 | 1,476
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 151 | 206 | 537 | 586
Land and Offshore [Member] | Offshore Destination [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 880 | 720 | 2,361 | 2,043
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 161 | 124 | 444 | 353
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 236 | 194 | 586 | 605
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | $ 483 | $ 402 | $ 1,331 | $ 1,085

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