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Business Combination - Summary of Preliminary Acquisition Date Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions | Jan. 24, 2020 | May 23, 2019 | Apr. 26, 2019
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 1,770 |  | $ 1,735
Cognigo Research Limited |  |  |
Business Acquisition [Line Items] |  |  |
Cash |  | $ 2 |
Developed technology intangible asset |  | 26 |
Goodwill |  | 35 |
Total assets acquired |  | 63 |
Liabilities assumed |  | (5) |
Total purchase price |  | $ 58 |

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