Share-based Compensation - Summary of Stock Options and Changes (Long Term Incentive Plans) (Detail) - Long Term Incentive Plans $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock options, Outstanding at January 1, 2019 (in shares) | shares	346,202
Stock options, Granted (in shares) | shares	0
Stock options, Exercised (in shares) | shares	90,623
Stock options, Forfeited (in shares) | shares	0
Stock options, Outstanding at December 31, 2019 (in shares) | shares	255,579
Exercisable at December 31, 2019 (in shares) | shares	255,579
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price, Outstanding at January 1, 2023 (in dollars per share) | $ / shares	$ 66.72
Weighted average exercise price, Granted (in dollars per share) | $ / shares	0
Weighted average exercise price, Exercised (in dollars per share) | $ / shares	55.49
Weighted average exercise price, Forfeited (in dollars per share) | $ / shares	0
Weighted average exercise price, Outstanding at December 31, 2023 (in dollars per share) | $ / shares	70.71
Weighted average exercise price, Exercisable at December 31, 2023 (in dollars per share) | $ / shares	$ 70.71
Weighted average remaining contractual term, Outstanding at December 31, 2023	1 year 6 months
Weighted average remaining contractual term, Exercisable at December 31, 2023	1 year 6 months
Aggregate intrinsic value, Outstanding at December 31, 2023 | $	$ 41
Aggregate intrinsic value, Exercisable at December 31, 2023 | $	$ 41