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Revenue Recognition - Summary of Disaggregate Revenue by Destinations (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue | $ 2,398 | $ 2,154 | $ 2,106 | $ 1,795 | $ 1,969 | $ 1,835 | $ 1,759 | $ 1,741 | $ 8,453 | $ 7,304 | $ 7,251
Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 3,235 | 2,577 | 2,199
Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 2,931 | 2,672 | 2,241
Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 2,575 | 2,252 | 3,110
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | (288) | (197) | (299)
Continental [Member] | Operating Segments [Member] | Intersubsegment Eliminations [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 73 | 53 | 170
Continental [Member] | Operating Segments [Member] | Intersubsegment Eliminations [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 86 | 51 | 44
Continental [Member] | Operating Segments [Member] | Intersubsegment Eliminations [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 129 | 93 | 85
Continental [Member] | Intersegment Eliminations [Member] | Intersubsegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | (288) | (197) | (299)
Land and Offshore [Member] | Operating Segments [Member] | Intersubsegment Eliminations [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 73 | 53 | 170
Land and Offshore [Member] | Operating Segments [Member] | Intersubsegment Eliminations [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 86 | 51 | 44
Land and Offshore [Member] | Operating Segments [Member] | Intersubsegment Eliminations [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 129 | 93 | 85
Land and Offshore [Member] | Intersegment Eliminations [Member] | Intersubsegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | (288) | (197) | (299)
North America [Member] | Continental [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 3,782 | 3,046 | 2,178
North America [Member] | Continental [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 1,817 | 1,408 | 925
North America [Member] | Continental [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 1,302 | 1,093 | 793
North America [Member] | Continental [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 663 | 545 | 460
International [Member] | Continental [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 4,671 | 4,258 | 5,073
International [Member] | Continental [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 1,345 | 1,116 | 1,104
International [Member] | Continental [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 1,543 | 1,528 | 1,404
International [Member] | Continental [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 1,783 | 1,614 | 2,565
Land Destination [Member] | Land and Offshore [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 5,522 | 4,539 | 3,658
Land Destination [Member] | Land and Offshore [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 2,683 | 2,047 | 1,497
Land Destination [Member] | Land and Offshore [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 1,985 | 1,752 | 1,342
Land Destination [Member] | Land and Offshore [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 854 | 740 | 819
Offshore Destination [Member] | Land and Offshore [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 2,931 | 2,765 | 3,593
Offshore Destination [Member] | Land and Offshore [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 479 | 477 | 532
Offshore Destination [Member] | Land and Offshore [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | 860 | 869 | 855
Offshore Destination [Member] | Land and Offshore [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregate revenue |  |  |  |  |  |  |  |  | $ 1,592 | $ 1,419 | $ 2,206

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