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Employee Benefit Plans - Summary of Changes in Fair Value of Plan's Level Three Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year $ 582  
Fair value of plan assets at end of year 571 $ 582
Fair Value, Inputs, Level 3 [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year 66 63
Actual return on plan assets still held at reporting date (2)  
Purchases, sales and settlements (1) (3)
Currency translation adjustments (4) 6
Fair value of plan assets at end of year $ 59 $ 66