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Summary of Fair Value of Company's Plan Assets (Detail) - Fair Value, Inputs, Level 2 - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 71 | $ 63
Total | 274 | 264
Government | Corporate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 24 | 15
Non-U.S. Bonds | Corporate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 21 | 23
Insurance Contracts |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 17 | 14
Common Collective Trusts |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments measured at net asset value | 203 | 201
Other Investment |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 10 | $ 11

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