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Asset Impairments - Additional Information (Detail) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 USD ($) Reporting_Unit | Jun. 30, 2019 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2018 USD ($)
Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |  |
Decrease in trade percentage |  |  | 14.00% |
Impairment charge on goodwill | $ 0 | $ 3,099 | $ 3,099 |
Impairment of intangible assets, indefinite-lived (excluding goodwill) |  | 87 |  |
Goodwill | 3,236 |  | 3,236 | $ 6,264
Accumulated goodwill impairment | 5,556 |  | 5,556 |
Additions | 55 |  | 83 |
Impairment of Intangible Assets, Finite-lived |  | 1,901 |  |
Impairment of property, plant and equipment | 12 | 230 |  |
Impairment of right-of-use assets |  | $ 56 |  |
Identifiable intangible assets | $ 866 |  | 866 | 3,020
Wellbore Technologies [Member] |  |  |  |
Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |  |
Impairment charge on goodwill |  |  | 1,866 |
Reporting units reorganized | Reporting_Unit | 2 |  |  |
Goodwill | $ 1,157 |  | 1,157 | 3,011
Additions |  |  | 11 |
Impairment of property, plant and equipment | 5 |  |  |
Wellbore Technologies [Member] | Wellsite Services [Member] |  |  |  |
Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |  |
Goodwill | 174 |  | 174 |
Completion & Production Solutions [Member] |  |  |  |
Indefinite Lived Intangible Assets By Major Class [Line Items] |  |  |  |
Impairment charge on goodwill |  |  | 1,013 |
Goodwill | 1,078 |  | 1,078 | $ 2,041
Additions |  |  | $ 58 |
Impairment of property, plant and equipment | $ 7 |  |  |

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