Share-Based Compensation - Summary of Term-Based Stock Option Activity (Detail) - Term Based Stock Options [Member] - Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Shares
Options Outstanding at Beginning of Period	6,213,998
Options, Exercised	(401,167)
Options, Forfeited or expired	(109,123)
Options Outstanding at End of Period	5,703,708	6,213,998
Options Exercisable at End of Period	5,540,886
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 51.34
Weighted Average Exercise Price, Exercised	51.62
Weighted Average Exercise Price, Forfeited or expired	76.82
Weighted Average Exercise Price at End of Period	50.83	$ 51.34
Weighted Average Exercise Price Exercisable at End of Period	$ 49.87
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	5 years	5 years 6 months
Weighted Average Remaining Contractual Term Exercisable (in years)	5 years
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Options Outstanding	$ 36.8	$ 110.8
Aggregate Intrinsic Value, Options Exercisable	$ 36.8