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Post-Employment and Other Long-Term Employees Benefits - Reconciliation for Plan Assets Measured at Fair Value Using Unobservable Inputs (Level 3) (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]    
Plan assets at fair value at beginning of year $ 743  
Foreign currency translation adjustment 0 $ 0
Plan assets at fair value at end of year 565 743
Fair Value, Inputs, Level 3 [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan assets at fair value at beginning of year 167 162
Contributions (employer and employee) 21 15
Return on plan assets   2
Net benefit payments 9 1
Settlements (14) (8)
Foreign currency translation adjustment (5) (5)
Plan assets at fair value at end of year $ 178 $ 167