Variable Interest Entities - Carrying Amounts and Classification of Significant Variable Interests (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 13,803	$ 14,586
Non-marketable and other equity securities	2,664	2,543
Accrued interest receivable and other assets	3,082	1,791
Total assets	211,793	211,308
Other liabilities	3,041	2,467
Long-term debt	5,370	2,570
Total liabilities	195,498	194,699
Investments in Affordable Housing Projects [Abstract]
Investments in qualified affordable housing projects, net	1,306	954
Related other liabilities of unfunded credit commitments	754	482
Consolidated VIEs
Variable Interest Entity [Line Items]
Cash and cash equivalents	20	13
Non-marketable and other equity securities	735	768
Accrued interest receivable and other assets	8	31
Total assets	763	812
Other liabilities	31	18
Long-term debt	0	0
Total liabilities	31	18
Maximum Exposure to Loss in Unconsolidated VIEs	732
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Cash and cash equivalents	0	0
Non-marketable and other equity securities	1,457	1,233
Accrued interest receivable and other assets	6	6
Total assets	1,463	1,239
Other liabilities	759	482
Long-term debt	91	90
Total liabilities	850	572
Maximum Exposure to Loss in Unconsolidated VIEs	1,457	1,233
Non-marketable securities | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss in Unconsolidated VIEs	$ 1,457	$ 1,233