Equity-Based Compensation - Assumptions (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity-Based Compensation
Compensation expense recognized	$ 78	$ 71	$ 94
Deferred income tax benefits included in income tax expense	14	17	18
Currently unrecognized compensation expense	$ 44
Weighted average period unrecognized compensation expenses expected to be recognized	1 year 6 months
Employee Stock Incentive Plan [Member]
Equity-Based Compensation
Deferred income tax benefits included in income tax expense	$ 15	$ 14	$ 18
Employee Stock Option
Equity-Based Compensation
Fair value of stock options granted	$ 32.82	$ 26.44	$ 17.25
Expected option life	4 years 7 months 6 days	4 years 8 months 12 days	4 years 8 months 12 days
Expected volatility	22.30%	23.40%	23.20%
Expected dividend yield	1.90%	1.80%	2.10%
Risk-free interest rate	4.40%	1.60%	0.60%