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Retirement Plans - Defined Benefit Plan, Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost (Detail)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
U.S. Retiree Healthcare Plan [Member]      
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 5.18% 5.42% 2.70%
Return on plan assets 6.25% 6.25% 6.25%
Interest crediting rate 5.25% 5.25% 5.25%
Non-U.S. Pension Plans [Member]      
Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 3.58% 4.70% 2.09%
Return on plan assets 3.80% 3.95% 3.07%
Increases in compensation levels 3.74% 4.32% 3.58%
Interest crediting rate 2.03% 1.47% 1.55%