Share-based Compensation - Summary of Performance Share Units Activity (Detail) - Performance Share Units - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards - Outstanding at beginning of period (in shares)	686
Awards - Granted (in shares)	130
Awards - Vested (in shares)	(303)
Awards - Forfeited (in shares)	(1)
Awards - Outstanding at end of period (in shares)	512	686
Weighted average fair value on date of grant - Outstanding at beginning of period (in dollars per share)	$ 81.25
Weighted average fair value on date of grant - Granted (in dollars per share)	178.80
Weighted average fair value on date of grant - Vested (in dollars per share)	57.93
Weighted average fair value on date of grant - Forfeited (in dollars per share)	104.54
Weighted average fair value on date of grant - Outstanding at end of period (in dollars per share)	$ 119.77	$ 81.25
Fair value of vested shares	$ 55	$ 37	$ 30