Employee Benefits - Weighted Average Assumptions Used In Determining Benefit Obligations (Detail)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.20%	2.90%	2.60%	3.30%
Pension
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.20%	3.00%
Rate of compensation increases	3.00%	3.00%
Health Care and Life
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.20%	2.90%