Deposits - Types and Sources of Deposits, Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Deposits [Abstract]
Deposits at fair value	$ 23,587	$ 35,425
Weighted average maturity of time deposits	10 months 24 days	10 months 24 days
Deposits insured by the FDIC	$ 187,640	$ 156,660
Deposits insured by non-U.S. Insurance Programs	$ 27,200	$ 31,440