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Employee Benefits - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Amount of correction $ 17,000,000 $ 17,000,000  
Assets for Plan Benefits, Defined Benefit Plan 120,000,000 120,000,000 $ 101,000,000
Defined Contribution and Other Retirement Plans      
Defined Benefit Plan Disclosure [Line Items]      
Contribution to the plans   3,000,000  
Expected contribution to the plan   4,000,000  
U.S. Plans | Qualified Plan      
Defined Benefit Plan Disclosure [Line Items]      
Benefit payments   0  
U.S. Plans | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Expected contribution to the plan 4,000,000 4,000,000  
U.S. Plans | Nonqualified Plan      
Defined Benefit Plan Disclosure [Line Items]      
Benefit payments   3,000,000  
Non-U.S. Plans | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Expected contribution to the plan $ 25,000,000 25,000,000  
Contribution to the plans   $ 18,000,000