Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity [Abstract]
Unrealized losses on available-for-sale securities, tax benefit			$ 12
Foreign currency translation adjustments, income tax benefit	$ 2		16
Foreign currency translation adjustments, income tax expense		$ 7
Unrealized gains on available-for-sale securities, tax expense		2
Foreign currency translation adjustments, income tax expense		7
Defined benefit plans, income tax expense	$ 15	6	11
Change in fair value of derivative instruments, income tax expense			1
Defined benefit plans, benefit reclassified into operations from other comprehensive income		0	2
Interest expense on derivative instruments, benefit reclassified into operations from other comprehensive income		$ 1	$ 1