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Business Combinations - Schedule of Preliminary Fair Value of Identifiable Assets and Assumed Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Technologies & licenses | $ 118 |  |
Goodwill | 330 | $ 162 | $ 121
2020 Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Property, plant and equipment | 1 |  |
Deferred tax assets | 5 |  |
Deferred tax liabilities | (18) |  |
Net working capital | (4) |  |
Goodwill | 135 |  |
Total net assets at fair value | 239 |  |
Purchase consideration | 239 |  |
2020 Acquisitions [Member] | Technologies & Licenses [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Technologies & licenses | 108 |  |
2020 Acquisitions [Member] | Technologies in Progress [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Technologies & licenses | 10 |  |
2020 Acquisitions [Member] | Other Intangible Assets [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Technologies & licenses | 2 |  |
Norstel AB [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Property, plant and equipment | 11 | 11 |
Deferred tax assets | 4 |  |
Deferred tax liabilities | (18) |  |
Net working capital | (2) | (2) |
Goodwill | 57 | 43 |
Total net assets at fair value | 138 | 138 |
Purchase consideration | 138 | 138 |
Norstel AB [Member] | Measurement Period Adjustments [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Deferred tax assets | 4 |  |
Deferred tax liabilities | (18) |  |
Goodwill | 14 |  |
Norstel AB [Member] | Technologies in Progress [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Technologies & licenses | $ 86 | $ 86 |

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