Accumulated Other Comprehensive Income (Loss) ("AOCI") - Components of AOCI (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated other comprehensive income (loss), Beginning balance	$ (150)
Net current-period other comprehensive income	1	$ 2
Accumulated other comprehensive income (loss), Ending balance	(149)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated other comprehensive income (loss), Beginning balance	(150)	(147)
Net current-period other comprehensive income	1	2
Accumulated other comprehensive income (loss), Ending balance	$ (149)	$ (145)