Securitizations, Net - Additional Information (Detail) $ in Billions	6 Months Ended
	Jun. 30, 2022 USD ($) Securities
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Number of securitizations | Securities	23
Issuing of securities to third parties | $	$ 4.9
Minimum
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Securities redemption when principal balance is less than a certain percentage	5.00%
Maturity dates of the securities	2045-07
Maximum
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Securities redemption when principal balance is less than a certain percentage	30.00%
Maturity dates of the securities	2052-05