Capital Stock - Schedule of Changes in Number of Common Shares Outstanding (Detail) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Class Of Stock [Line Items]
Beginning balance	238,885,730	249,792,908
Treasury shares	(714,530)	(13,998,889)
Ending balance	241,040,304	238,885,730
Restricted Stock
Class Of Stock [Line Items]
Restricted stock grants	50,238	671,303
Restricted stock units vested	1,755,345	1,827,625
Performance Share
Class Of Stock [Line Items]
Performance stock units vested	1,057,245	590,940
Performance stock dividends	6,276	1,843