Derivatives - Summary of Gains (Losses) on Derivatives Designated as Cash Flow Hedging Instruments (Detail) - Cash Flow Hedging [Member] - Foreign Exchange Forward Contracts [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Net gain recognized in accumulated OCI	$ 18	$ 11
Net gain (loss) reclassified from accumulated OCI into income	$ 1	$ (2)