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Employee Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Postretirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial (gain) loss $ 4 $ 0
Prior service cost (credit) (2) (4)
Total AOCI (before tax effects) 2 (4)
U.S. Plans | Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial (gain) loss 18 155
Prior service cost (credit) 0 0
Total AOCI (before tax effects) 18 155
Non-U.S. Plans | Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial (gain) loss 134 198
Prior service cost (credit) (1) (2)
Total AOCI (before tax effects) $ 133 $ 196