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Post-Employment and Other Long-Term Employees Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 28 $ 33 $ 36
Interest cost 35 27 21
Expected return on plan assets (24) (23) (24)
Amortization of actuarial net loss (gain) 6 6 12
Amortization of prior service cost 1 1 1
Effect of settlement 1 0 0
Net periodic benefit cost 47 44 46
Other Long-Term Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 17 17 13
Interest cost 3 1 1
Expected return on plan assets 0 0 0
Amortization of actuarial net loss (gain) (2) (14) 0
Amortization of prior service cost 0 0 0
Effect of settlement 0 0 0
Net periodic benefit cost $ 18 $ 4 $ 14