Leases - Operating Leases Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 30	$ 29	$ 90	$ 89
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 1	$ 1	$ 25	$ 31
Weighted-average remaining lease term (years)	4 years 7 months 6 days	5 years 1 month 6 days	4 years 7 months 6 days	5 years 1 month 6 days
Weighted-average discount rate applied to operating leases (percent)	3.20%	3.10%	3.20%	3.10%