Equity-Based Compensation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 31, 2023
Equity-Based Compensation
Shares available under employee stock plans	14,300,000
Compensation expense recognized	$ 78	$ 71	$ 94
Maximum number of shares authorized for issuance				15,200,000
Employee Stock Purchase Plan [Member]
Equity-Based Compensation
Service period	30 days
Price employees purchase shares (as a percent)	85.00%
Annual salary deducted for plan (as a percent)	10.00%
Shares issued under the plan	473,000	455,000	513,000
Shares available under employee stock plans	1,800,000
Compensation expense recognized	$ 14	$ 13	$ 12
Compensation expense recognized, net of tax	$ 11	$ 10	$ 9