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Post-Employment and Other Long-Term Employees Benefits - Rollforward Accumulated Other Comprehensive Income (Loss) Before Tax Effects (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Retirement Benefits [Abstract] |  |
Accumulated other comprehensive loss, actuarial (gains)/losses, beginning balance | $ 49 | $ 142
Other comprehensive income (loss), defined benefit plan, gain (loss) arising during period, before tax | 25 | (80)
Amortization, actuarial (gains)/losses | (6) | (3)
Foreign currency translation, actuarial (gains)/losses before tax | 1 | (10)
Accumulated other comprehensive loss, actuarial (gains)/losses, beginning balance | 69 | 49
Accumulated other comprehensive loss, prior service cost, beginning balance | 1 | 2
Other comprehensive (income) loss, defined benefit plan, prior service cost (credit), before tax | (1) | 0
Other comprehensive (income) loss, defined benefit plan, prior service cost (credit), reclassification adjustment from AOCI, before tax | (1) | (1)
Foreign currency translation adjustment | 0 | 0
Accumulated other comprehensive loss, prior service cost, beginning balance | (1) | 1
Defined benefit plan, accumulated other comprehensive (income) loss, before tax | 50 | 144
Net amount generated/arising in current year, total | 24 | (80)
Amortization, total | (7) | (4)
Other comprehensive income of defined benefit plan foreign currency translation before tax | 1 | (10)
Defined benefit plan, accumulated other comprehensive (income) loss, before tax | $ 68 | $ 50

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