Variable Interest Entities - Additional Information (Details) $ in Millions	Sep. 30, 2022 USD ($) entity	Dec. 31, 2021 USD ($)
Investments In Variable Interest Entities [Abstract]
Number of consolidated entities | entity	4
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	$ 1,369	$ 1,233
Total assets	212,867	211,308
Other liabilities	2,889	2,467
Qualified Affordable Housing Project Investments, Commitment	672	482
Consolidated
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	786
Total assets	809	812
Other liabilities	23	18
Unconsolidated
Variable Interest Entity [Line Items]
Total assets	1,375	1,239
Other liabilities	$ 672	$ 482