Long-Term Employee Benefit Liabilities - Summary of Weighted Average Discount Rates Used in Measuring Company's Projected Retirement Medical Benefit Obligations and Net Periodic Benefit Cost (Detail) - Retirement Medical Benefits Plans [Member]	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Retirement medical benefit obligations	4.80%	5.10%
Net periodic benefit cost	5.10%	3.10%
Health care cost inflation	6.70%	6.80%

Long-Term Employee Benefit Liabilities - Summary of Weighted Average Discount Rates Used in Measuring Company's Projected Retirement Medical Benefit Obligations and Net Periodic Benefit Cost (Detail) - Retirement Medical Benefits Plans [Member]

12 Months Ended

Dec. 31, 2023

Dec. 31, 2022

Defined Benefit Plan Disclosure [Line Items]

Retirement medical benefit obligations

4.80%

5.10%

Net periodic benefit cost

5.10%

3.10%

Health care cost inflation

6.70%

6.80%