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v3.20.4

Description of Company and Significant Accounting Policies (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) Division | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |  |  |
Number of business segments | Division |  |  |  | 2 |  |
Goodwill [Line Items] |  |  |  |  |  |
Goodwill, Impairment Loss | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0
Research and Development [Abstract] |  |  |  |  |  |
Research and development costs |  |  |  | $ 309,000,000 | 404,000,000 | 390,000,000
Cash and Cash Equivalents [Abstract] |  |  |  |  |  |
Cash equivalents, maximum maturity (in months) |  |  |  | 3 months |  |
Goodwill [Roll Forward] |  |  |  |  |  |
Goodwill |  |  | 2,812,000,000 | $ 2,812,000,000 | 2,825,000,000 |
Current year acquisitions |  |  |  |  | 11,000,000 |
Purchase price adjustments for previous acquisitions |  |  |  |  | (2,000,000) |
Other |  |  |  | (8,000,000) | (22,000,000) |
Goodwill |  |  |  | $ 2,804,000,000 | 2,812,000,000 | 2,825,000,000
Minimum |  |  |  |  |  |
Finite-lived intangible assets [Abstract] |  |  |  |  |  |
Useful life of finite-lived intangible assets (in years) |  |  |  | 1 year |  |
Maximum |  |  |  |  |  |
Finite-lived intangible assets [Abstract] |  |  |  |  |  |
Useful life of finite-lived intangible assets (in years) |  |  |  | 28 years |  |
Completion and Production |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |
Goodwill |  |  | 2,039,000,000 | $ 2,039,000,000 | 2,055,000,000 |
Current year acquisitions |  |  |  |  | 6,000,000 |
Purchase price adjustments for previous acquisitions |  |  |  |  | (1,000,000) |
Other |  |  |  | (66,000,000) | (21,000,000) |
Goodwill |  |  |  | 1,973,000,000 | 2,039,000,000 | 2,055,000,000
Drilling and Evaluation |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |
Goodwill |  |  | $ 773,000,000 | 773,000,000 | 770,000,000 |
Current year acquisitions |  |  |  |  | 5,000,000 |
Purchase price adjustments for previous acquisitions |  |  |  |  | (1,000,000) |
Other |  |  |  | 58,000,000 | (1,000,000) |
Goodwill |  |  |  | $ 831,000,000 | $ 773,000,000 | $ 770,000,000

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