Significant Accounting Policies - Noncurrent Deferred Tax Assets Recorded in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Balance at beginning of period	$ 53	$ 49	$ 54	$ 50
Tax effect of other comprehensive earnings	(1)	0	(2)	(1)
Balance at end of period	$ 52	$ 49	$ 52	$ 49