Defined Benefit Plans - Schedule of Assumptions Used (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits [Member]
Weighted-Average Assumptions Used to Determine Benefit Obligations at December 31:
Discount rate	5.20%	2.90%	2.60%
Weighted-Average Assumptions Used to Determine Net Cost for Years Ended December 31:
Discount rate	2.90%	2.60%	3.30%
Expected long-term rate of return on plan assets	4.40%	4.40%	4.50%
Postretirement Benefits [Member]
Weighted-Average Assumptions Used to Determine Benefit Obligations at December 31:
Discount rate	5.80%	3.90%	5.90%
Weighted-Average Assumptions Used to Determine Net Cost for Years Ended December 31:
Discount rate	3.90%	5.90%	6.40%