Leases - Lease expense (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Lease cost:
Operating lease	[1]	$ 27	$ 28
Finance Lease		3	0
Short-term lease		10	4
Total lease expense		$ 13	$ 32

[1] Operating lease expense includes an immaterial amount of variable expenses, offset by certain sublease rental income.