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Revenue - Summary of Disaggregate Revenue by Destinations (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | $ 1,341 | $ 1,384 | $ 4,007 | $ 4,763
Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 507 | 361 | 1,383 | 1,494
Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 478 | 601 | 1,414 | 1,887
Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 390 | 449 | 1,308 | 1,482
Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (34) | (27) | (98) | (100)
Continental [Member] | Intercompany [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 16 | 12 | 45 | 42
Continental [Member] | Intercompany [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 10 | 9 | 33 | 33
Continental [Member] | Intercompany [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 8 | 6 | 20 | 25
Continental [Member] | Intercompany [Member] | Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (34) | (27) | (98) | (100)
Continental [Member] | North America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 489 | 354 | 1,387 | 1,434
Continental [Member] | North America [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 227 | 132 | 630 | 676
Continental [Member] | North America [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 192 | 168 | 563 | 574
Continental [Member] | North America [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 70 | 54 | 194 | 184
Continental [Member] | International [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 852 | 1,030 | 2,620 | 3,329
Continental [Member] | International [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 264 | 217 | 708 | 776
Continental [Member] | International [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 276 | 424 | 818 | 1,280
Continental [Member] | International [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 312 | 389 | 1,094 | 1,273
Land and Offshore [Member] | Intercompany [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 16 | 12 | 45 | 42
Land and Offshore [Member] | Intercompany [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 10 | 9 | 33 | 33
Land and Offshore [Member] | Intercompany [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 8 | 6 | 20 | 25
Land and Offshore [Member] | Intercompany [Member] | Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | (34) | (27) | (98) | (100)
Land and Offshore [Member] | Land Destination [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 772 | 675 | 2,194 | 2,525
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 370 | 226 | 994 | 1,051
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 317 | 346 | 911 | 1,107
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 85 | 103 | 289 | 367
Land and Offshore [Member] | Offshore Destination [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 569 | 709 | 1,813 | 2,238
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 121 | 123 | 344 | 401
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | 151 | 246 | 470 | 747
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Rig Technologies [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Disaggregate revenue | $ 297 | $ 340 | $ 999 | $ 1,090

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