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Employee Benefit Plans - Summary Of Defined Benefit Pension Plans' Assets Fair Value (Detail) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | $ 772 | $ 722 | $ 649
Cash equivalents and short-term investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 62 | 69 |
U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 160 | 169 |
Non-U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 145 | 167 |
Government bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 17 | 6 |
Corporate bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 185 | 137 |
Other assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 203 | 174 |
Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 330 | 307 |
Level 1 | Cash equivalents and short-term investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 14 | 19 |
Level 1 | U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 115 | 113 |
Level 1 | Non-U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 56 | 64 |
Level 1 | Government bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 6 | 5 |
Level 1 | Corporate bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 134 | 105 |
Level 1 | Other assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 5 | 1 |
Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 396 | 415 |
Level 2 | Cash equivalents and short-term investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 48 | 50 |
Level 2 | U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 45 | 56 |
Level 2 | Non-U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 89 | 103 |
Level 2 | Government bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 11 | 1 |
Level 2 | Corporate bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 51 | 32 |
Level 2 | Other assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 152 | $ 173 |
Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 46 |  |
Level 3 | Cash equivalents and short-term investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 0 |  |
Level 3 | U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 0 |  |
Level 3 | Non-U.S. equities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 0 |  |
Level 3 | Government bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 0 |  |
Level 3 | Corporate bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | 0 |  |
Level 3 | Other assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets | $ 46 |  |

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